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updating frontend

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jakani24
2024-03-23 18:06:12 +01:00
parent 7cacfb9361
commit ba1716f4eb
84 changed files with 4036 additions and 857 deletions
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src/client_backend/.vs/client_backend/v17/DocumentLayout.json
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21
src/client_backend/check_dir.cpp
View File

@@ -12,6 +12,7 @@
#include <algorithm> // Include the algorithm header
#include <string> // Include the string header
#include <iostream> // Include the iostream header
#include "utils.h"
// Define a mutex for thread synchronization
std::mutex monitorMutex;
@@ -36,15 +37,17 @@ void process_changes(const FILE_NOTIFY_INFORMATION* pInfo) {
filename_str = "c:\\" + filename_str;
// Scan the file and send it to virus_ctrl if it is a virus and then process it
std::transform(filename_str.begin(), filename_str.end(), filename_str.begin(), ::tolower);
if (!is_folder_included(filename_str.c_str()) || is_directory(filename_str) || is_folder_excluded(filename_str.c_str())) {
// Don't scan excluded files or folders
return;
}
else {
//log(LOGLEVEL::INFO_NOSEND, "[process_changes()]: File ", filename_str, " has been changed. Scanning it for viruses");
std::thread scan_thread(scan_file_t, filename_str);
scan_thread.detach();
if (is_valid_path(filename_str)) { //filter out invalid paths and paths with weird characters
std::transform(filename_str.begin(), filename_str.end(), filename_str.begin(), ::tolower);
if (!is_folder_included(filename_str.c_str()) || is_directory(filename_str) || is_folder_excluded(filename_str.c_str())) {
// Don't scan excluded files or folders
return;
}
else {
//log(LOGLEVEL::INFO_NOSEND, "[process_changes()]: File ", filename_str, " has been changed. Scanning it for viruses");
std::thread scan_thread(scan_file_t, filename_str);
scan_thread.detach();
}
}
}

0
src/client_backend/check_dir.cpp~RF21c4a54.TMP Normal file
View File

157
src/client_backend/check_dir.cpp~RF21c703b.TMP Normal file
View File

@@ -0,0 +1,157 @@
#ifndef CHECK_DIR_CPP
#define CHECK_DIR_CPP
#include "check_dir.h"
#include "well_known.h"
#include "log.h"
#include "md5hash.h"
#include "scan.h"
#include "app_ctrl.h"
#include "virus_ctrl.h"
#include "settings.h"
#include <mutex> // Include the mutex header
#include <algorithm> // Include the algorithm header
#include <string> // Include the string header
#include <iostream> // Include the iostream header
// Define a mutex for thread synchronization
std::mutex monitorMutex;
bool is_directory(const std::string& path) {
DWORD attributes = GetFileAttributes(path.c_str());
if (attributes == INVALID_FILE_ATTRIBUTES) {
// Handle the error, e.g., by printing an error message
return false;
}
return (attributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
}
void process_changes(const FILE_NOTIFY_INFORMATION* pInfo) {
// Allocate a buffer for the file name and copy the content
std::wstring fileName(pInfo->FileName, pInfo->FileNameLength / sizeof(wchar_t));
// Convert wstring to string
std::string filename_str(fileName.begin(), fileName.end());
filename_str = "c:\\" + filename_str;
// Scan the file and send it to virus_ctrl if it is a virus and then process it
if (is_valid_path(filename_str)) { //filter out invalid paths and paths with weird characters
std::transform(filename_str.begin(), filename_str.end(), filename_str.begin(), ::tolower);
if (!is_folder_included(filename_str.c_str()) || is_directory(filename_str) || is_folder_excluded(filename_str.c_str())) {
// Don't scan excluded files or folders
return;
}
else {
//log(LOGLEVEL::INFO_NOSEND, "[process_changes()]: File ", filename_str, " has been changed. Scanning it for viruses");
std::thread scan_thread(scan_file_t, filename_str);
scan_thread.detach();
}
}
}
void monitor_directory(LPCSTR directory) {
// Open the directory for monitoring
HANDLE hDir = CreateFile(
directory,
FILE_LIST_DIRECTORY,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
NULL,
OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED,
NULL
);
if (hDir == INVALID_HANDLE_VALUE) {
log(LOGLEVEL::ERR, "[monitor_directory()]: Error opening directory: ", directory, " while monitoring directory for changes");
return;
}
// Create a buffer for file change notifications
constexpr DWORD bufferSize = 4096;
BYTE buffer[bufferSize];
// Monitor the directory for changes
OVERLAPPED overlapped;
memset(&overlapped, 0, sizeof(overlapped));
memset(buffer, 0, bufferSize);
overlapped.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (ReadDirectoryChangesW(
hDir,
buffer,
bufferSize,
TRUE,
FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_LAST_WRITE,
NULL,
&overlapped,
NULL) == 0) {
log(LOGLEVEL::ERR, "[monitor_directory()]: Error reading directory changes: ", GetLastError(), " while monitoring directory for changes");
CloseHandle(hDir);
return;
}
log(LOGLEVEL::INFO, "[monitor_directory()]: Monitoring directory: ", directory, " for changes");
// Wait for changes
while (!app_stop()) {
DWORD bytesReturned;
DWORD waitStatus = WaitForSingleObject(overlapped.hEvent, INFINITE);
if (waitStatus == WAIT_OBJECT_0) {
if (GetOverlappedResult(hDir, &overlapped, &bytesReturned, FALSE)) {
// Process the changes in the buffer
FILE_NOTIFY_INFORMATION* pInfo = reinterpret_cast<FILE_NOTIFY_INFORMATION*>(buffer);
do {
process_changes(pInfo);
pInfo = reinterpret_cast<FILE_NOTIFY_INFORMATION*>(
reinterpret_cast<BYTE*>(pInfo) + pInfo->NextEntryOffset);
} while (pInfo->NextEntryOffset != 0);
// Reset the event for the next wait
ResetEvent(overlapped.hEvent);
memset(buffer, 0, bufferSize);
// Continue monitoring
if (ReadDirectoryChangesW(
hDir,
buffer,
bufferSize,
TRUE,
FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_LAST_WRITE | FILE_NOTIFY_CHANGE_CREATION,
NULL,
&overlapped,
NULL) == 0) {
log(LOGLEVEL::ERR, "[monitor_directory()]: Error reading directory changes: ", GetLastError(), " while monitoring directory for changes");
break;
}
}
else {
log(LOGLEVEL::ERR, "[monitor_directory()]: GetOverlappedResult failed: ", GetLastError());
break;
}
}
else {
log(LOGLEVEL::ERR, "[monitor_directory()]: WaitForSingleObject failed: ", GetLastError());
break;
}
}
// Cleanup
CloseHandle(overlapped.hEvent);
CloseHandle(hDir);
}
void folder_scanner() {
// Lock access to the monitor function
std::lock_guard<std::mutex> lock(monitorMutex);
// We are in a completely separate thread than the main thread; unlimited resources wuhuii
// Start the watch dir function used to monitor the dir for new files
monitor_directory("C:\\");
}
#endif // !CHECK_DIR_CPP

16
src/client_backend/check_process.cpp
View File

@@ -8,6 +8,7 @@
#include <mutex> // Include the mutex header
#include <thread> // Include the thread header
#include <Windows.h> // Include the Windows header
#include "utils.h"
std::mutex mtx; // Declare a mutex for thread synchronization
@@ -48,13 +49,14 @@ void monitor_processes() {
strcpy_s(path, MAX_PATH, exePath);
for (size_t z = 0; z < strlen(path); z++)
path[z] = tolower(path[z]);
if (!is_folder_included(path) || is_folder_excluded(path)) {
// Don't scan excluded files or folders
}
else {
std::thread scan_thread(scan_process_t, path);
scan_thread.detach();
if (is_valid_path(path)) { //filter out invalid paths and paths with weird characters
if (!is_folder_included(path) || is_folder_excluded(path)) {
// Don't scan excluded files or folders
}
else {
std::thread scan_thread(scan_process_t, path);
scan_thread.detach();
}
}
}
CloseHandle(hProcess);

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 Quellen werden auf Modulabhängigkeiten überprüft...
scan.cpp
client_backend.vcxproj -> C:\Users\janis\Documents\Projekte_mit_c\ma\ma\src\client_backend\x64\Debug\client_backend.exe

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#ifndef SCAN_CPP
#define SCAN_CPP
#include "scan.h"
#include <windows.h>
#include <iostream>
#include <openssl/md5.h>
#include <windows.h>
#include <iostream>
#include <thread>
#include <chrono>
#include <time.h>
#include "md5hash.h"
#include <string>
#include "well_known.h"
#include "log.h"
#include "virus_ctrl.h"
#include "app_ctrl.h"
#include <mutex> // Include the mutex header
// Define mutexes for thread synchronization
std::mutex fileHandlesMutex;
std::mutex mappingHandlesMutex;
std::mutex fileDataMutex;
std::mutex cntMutex;
std::mutex numThreadsMutex;
std::unordered_map<std::string, HANDLE> fileHandles;
std::unordered_map<std::string, HANDLE> mappingHandles;
std::unordered_map<std::string, char*> fileData;
int cnt = 0;
int num_threads = 0;
//load all the db files into memory
int initialize(const std::string& folderPath) {
for (char firstChar = '0'; firstChar <= 'f'; ++firstChar) {
for (char secondChar = '0'; secondChar <= 'f'; ++secondChar) {
// Ensure that the characters are valid hexadecimal digits
if (!std::isxdigit(firstChar) || !std::isxdigit(secondChar) or std::isupper(firstChar) or std::isupper(secondChar)) {
continue;
}
// Create the filename based on the naming convention
std::string filename = folderPath + "\\" + firstChar + secondChar + ".jdbf";
//printf("Loading %s\n", filename.c_str());
// Open the file
HANDLE hFile = CreateFile(filename.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
//log(LOGLEVEL::ERR, "[initialize()]: Error opening database file: ", filename);
return 1;
}
// Create the file mapping
HANDLE hMapping = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
if (hMapping == NULL) {
// log(LOGLEVEL::ERR, "[initialize()]: Error creating database file mapping: ", filename);
CloseHandle(hFile);
return 2;
}
// Map the file into memory
char* fileDataPtr = static_cast<char*>(MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0));
if (fileDataPtr == NULL) {
//log(LOGLEVEL::ERR, "[initialize()]: Error mapping database file: ", filename);
CloseHandle(hMapping);
CloseHandle(hFile);
return 3;
}
// Store the handles in the global maps
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
fileHandles[filename] = hFile;
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
mappingHandles[filename] = hMapping;
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileData[filename] = fileDataPtr;
}
}
}
return 0;
}
// Call this function when you are done using the file mappings
void cleanup() {
for (const auto& entry : fileHandles) {
UnmapViewOfFile(fileData[entry.first]);
CloseHandle(mappingHandles[entry.first]);
CloseHandle(entry.second);
}
// Clear the global maps
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
fileHandles.clear();
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
mappingHandles.clear();
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileData.clear();
}
}
//the latest and fastest version of searching a hash by now
int search_hash(const std::string& dbname_, const std::string& hash_, const std::string& filepath_) {
// Check if the file mapping is already open for the given filename
std::string dbname;
std::string hash;
std::string filepath;
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
dbname = dbname_;
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
hash = hash_;
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
filepath = filepath_;
}
auto fileIter = fileHandles.find(dbname);
if (fileIter == fileHandles.end() && dbname_.find("c:.jdbf") == std::string::npos) {
log(LOGLEVEL::ERR_NOSEND, "[search_hash()]: File mapping not initialized for ", dbname);
return 2;
}
else if (fileIter == fileHandles.end()) {
return 2;
}
// Use fileData for subsequent searches
DWORD fileSize;
std::string fileContent;
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileSize = GetFileSize(fileHandles[dbname], NULL);
fileContent = std::string(fileData[dbname], fileSize);
}
// Search for the specific string in the file content
size_t foundPos = fileContent.find(hash);
if (foundPos != std::string::npos) {
//log(LOGLEVEL::VIRUS, "[search_hash()]: Found virus: ", hash, " in file: ", filepath);
virus_ctrl_store(filepath.c_str(), hash.c_str(), hash.c_str());
//afterwards do the processing with that file
virus_ctrl_process(hash.c_str());
return 1; // Found
}
return 0; // Not found
}
bool file_exists(const std::string& filePath) {
DWORD fileAttributes = GetFileAttributes(filePath.c_str());
if (fileAttributes == INVALID_FILE_ATTRIBUTES) {
// The file does not exist or there was an error
return false;
}
// Check if it's a regular file and not a directory
return (fileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0;
}
//this is the main function to scan folders. it will then start multuiple threads based on the number of cores / settings
void scan_folder(const std::string& directory) {
std::string search_path = directory + "\\*.*";
WIN32_FIND_DATA find_file_data;
HANDLE hFind = FindFirstFile(search_path.c_str(), &find_file_data);
if (hFind == INVALID_HANDLE_VALUE) {
log(LOGLEVEL::WARN, "[scan_folder()]: Could not open directory: ", search_path.c_str(), " while scanning files inside directory.");
return;
}
do {
if (strcmp(find_file_data.cFileName, ".") == 0 || strcmp(find_file_data.cFileName, "..") == 0) {
continue; // Skip the current and parent directories
}
const std::string full_path = directory + "\\" + find_file_data.cFileName;
if (find_file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
// If it's a directory, recurse into it
scan_folder(full_path);
}
else {
//action scanfile_t will start the trheads for scanning the hashes
//action_scanfile_t(full_path.c_str());
//do multithreading here
int cnt = 0;
while (num_threads >= std::thread::hardware_concurrency()) {
Sleep(10);
cnt++;
if(cnt==100*60)//if there is for more than 30 seconds no thread available, chances are high, that the threads did not temrinate correctly but aren t running anymore. so set the counter to 0 because else it might just stop the scan.
num_threads = 0;
}
//log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: Scanning file: ", full_path, "threads: ",num_threads);
std::thread scan_thread(scan_file_t, full_path);
scan_thread.detach();
//Sleep(1);
cnt++;
if (cnt % 100 == 0) {
printf("Processed %d files;\n", cnt);
//printf("Number of threads: %d\n", num_threads);
}
if(num_threads<0)
printf("Number of threads: %d\n", num_threads);
}
} while (FindNextFile(hFind, &find_file_data) != 0);
FindClose(hFind);
}
//for singlethreaded scans
void action_scanfile(const std::string& filepath_) {
thread_init();
const std::string filepath(filepath_);
char* db_path = new char[300];
char* hash = new char[300];
std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else {
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) != 1) {
//notify desktop client by writing to answer_com file
//if there is now virus, we notify here. if there is a virus we only notify in the virus_ctrl_process function
std::ofstream answer_com(ANSWER_COM_PATH,std::ios::app);
if (answer_com.is_open()) {
answer_com << "not_found " << "\"" << filepath_ << "\"" << " " << hash << " " << "no_action_taken" << "\n";
answer_com.close();
}
}
thread_shutdown();
}
void action_scanfolder(const std::string& folderpath) {
thread_init();
cnt = 0;
thread_local std::string folderpath_(folderpath);
scan_folder(folderpath_);
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
answer_com << "end " << "\"" << "nothing" << "\"" << " " << "nothing" << " " << "nothing" << "\n";
answer_com.close();
}
thread_shutdown();
}
void scan_file_t(const std::string& filepath_) {
num_threads++;
thread_local const std::string filepath(filepath_);
thread_local char* db_path = new char[300];
thread_local char* hash = new char[300];
thread_local std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else{
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
search_hash(db_path, hash, filepath);
num_threads--;
}
void scan_process_t(const std::string& filepath_) {
num_threads++;
thread_local const std::string filepath(filepath_);
thread_local char* db_path = new char[300];
thread_local char* hash = new char[300];
strcpy_s(hash, 295, md5_file_t(filepath).c_str());
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) == 1) {
//check if need to kill process
if (get_setting("virus_ctrl:virus_process_found:kill") == 1) {
//kill the process
kill_process(filepath.c_str());
log(LOGLEVEL::VIRUS, "[scan_process_t()]: Killing process: ", filepath);
}
}
num_threads--;
}
#endif

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@@ -0,0 +1,103 @@
#include "utils.h"
#include <windows.h>
#include <string.h>
#include <iostream>
#include "log.h"
#include <tlhelp32.h>
#include <regex>
#include <filesystem>
void split(const std::string& input, char delimiter, std::string& out1, std::string& out2) {
// Split a string at the delimiter. The delimiter only occurs once.
// The first part is stored in out1 and the second part in out2.
size_t pos = input.find(delimiter);
if (pos != std::string::npos) {
out1 = input.substr(0, pos);
out2 = input.substr(pos + 1);
}
}
bool is_valid_path(const std::string& filename) {
// Regular expression to match Windows path name criteria and illegal characters
std::regex pattern(R"(^(?:[a-zA-Z]:)?(?:\\[^<>:"/\\|?*]*)*$)");
// Check if the path matches the pattern
return std::regex_match(path, pattern);
}
void startup(LPCTSTR lpApplicationName)
{
// additional information
STARTUPINFO si;
PROCESS_INFORMATION pi;
// set the size of the structures
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
// start the program up
CreateProcess(lpApplicationName, // the path
NULL, // Command line
NULL, // Process handle not inheritable
NULL, // Thread handle not inheritable
FALSE, // Set handle inheritance to FALSE
0, // No creation flags
NULL, // Use parent's environment block
NULL, // Use parent's starting directory
&si, // Pointer to STARTUPINFO structure
&pi // Pointer to PROCESS_INFORMATION structure
);
// Close process and thread handles.
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
std::string get_filename(const std::string& path) {
auto pos = path.find_last_of("\\");
if (pos == std::string::npos) {
// No directory separator found, return the original path
return path;
}
else {
// Return the substring after the last directory separator
return path.substr(pos + 1);
}
}
int strcasecmp(const std::string& s1, const std::string& s2) {
auto it1 = s1.begin();
auto it2 = s2.begin();
while (it1 != s1.end() && it2 != s2.end()) {
int diff = std::tolower(*it1) - std::tolower(*it2);
if (diff != 0)
return diff;
++it1;
++it2;
}
return 0;
}
void kill_process(const std::string& path) {
HANDLE hSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPALL, NULL);
PROCESSENTRY32 pEntry;
pEntry.dwSize = sizeof(pEntry);
BOOL hRes = Process32First(hSnapShot, &pEntry);
while (hRes)
{
if (strcasecmp(pEntry.szExeFile, get_filename(path).c_str()) == 0)
{
HANDLE hProcess = OpenProcess(PROCESS_TERMINATE, 0, static_cast<DWORD>(pEntry.th32ProcessID));
if (hProcess != NULL)
{
TerminateProcess(hProcess, 9);
CloseHandle(hProcess);
}
else
log(LOGLEVEL::ERR, "[kill_process()]: Error while killing process: ", path);
}
hRes = Process32Next(hSnapShot, &pEntry);
}
CloseHandle(hSnapShot);
}

113
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@@ -16,6 +16,8 @@
#include "virus_ctrl.h"
#include "app_ctrl.h"
#include <mutex> // Include the mutex header
#include <filesystem>
#include "utils.h"
// Define mutexes for thread synchronization
std::mutex fileHandlesMutex;
@@ -29,7 +31,8 @@ std::unordered_map<std::string, HANDLE> mappingHandles;
std::unordered_map<std::string, char*> fileData;
int cnt = 0;
unsigned int num_threads = 0;
int num_threads = 0;
int all_files = 0;
//load all the db files into memory
int initialize(const std::string& folderPath) {
@@ -158,17 +161,33 @@ int search_hash(const std::string& dbname_, const std::string& hash_, const std:
return 0; // Not found
}
//function to get num of files in idr and its subdirs etc
int get_num_files(const std::string& directory) {
std::string search_path = directory + "\\*.*";
WIN32_FIND_DATA find_file_data;
HANDLE hFind = FindFirstFile(search_path.c_str(), &find_file_data);
int num_files = 0;
if (hFind == INVALID_HANDLE_VALUE) {
log(LOGLEVEL::ERR_NOSEND, "[get_num_files()]: Could not open directory: ", search_path.c_str(), " while scanning files inside directory.");
return 0;
}
bool file_exists(const std::string& filePath) {
DWORD fileAttributes = GetFileAttributes(filePath.c_str());
do {
if (strcmp(find_file_data.cFileName, ".") == 0 || strcmp(find_file_data.cFileName, "..") == 0) {
continue; // Skip the current and parent directories
}
if (fileAttributes == INVALID_FILE_ATTRIBUTES) {
// The file does not exist or there was an error
return false;
}
// Check if it's a regular file and not a directory
return (fileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0;
const std::string full_path = directory + "\\" + find_file_data.cFileName;
if (find_file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
// If it's a directory, recurse into it
num_files += get_num_files(full_path);
}
else {
num_files++;
}
} while (FindNextFile(hFind, &find_file_data) != 0);
FindClose(hFind);
return num_files;
}
//this is the main function to scan folders. it will then start multuiple threads based on the number of cores / settings
@@ -196,21 +215,40 @@ void scan_folder(const std::string& directory) {
else {
//action scanfile_t will start the trheads for scanning the hashes
//action_scanfile_t(full_path.c_str());
//do multithreading here
int thread_timeout = 0;
while (num_threads >= std::thread::hardware_concurrency()) {
Sleep(10);
thread_timeout++;
if (thread_timeout == 100 * 60) {//if there is for more than 30 seconds no thread available, chances are high, that the threads did not temrinate correctly but aren t running anymore. so set the counter to 0 because else it might just stop the scan.
num_threads = 0;
}
}
//log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: Scanning file: ", full_path, "threads: ",num_threads);
std::thread scan_thread(scan_file_t, full_path);
scan_thread.detach();
//Sleep(1);
if (is_valid_path(full_path)) { //filter out invalid paths and paths with weird characters
std::uintmax_t fileSize = std::filesystem::file_size(full_path);
if (fileSize > 4000000000) {//4gb
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: File too large to scan: ", full_path);
}
else {
std::thread scan_thread(scan_file_t, full_path);
scan_thread.detach();
}
}else
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: Invalid path: ", full_path);
cnt++;
if (cnt % 100 == 0) {
printf("Processed %d files;\n", cnt);
//printf("Number of threads: %d\n", num_threads);
}
if (cnt % 1000 == 0) {
//send progress to com file
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
answer_com << "progress " << (cnt*100/(all_files+1)) << "\n";
answer_com.close();
}
}
}
} while (FindNextFile(hFind, &find_file_data) != 0);
@@ -225,29 +263,40 @@ void action_scanfile(const std::string& filepath_) {
const std::string filepath(filepath_);
char* db_path = new char[300];
char* hash = new char[300];
std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else {
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) != 1) {
//notify desktop client by writing to answer_com file
//if there is now virus, we notify here. if there is a virus we only notify in the virus_ctrl_process function
std::ofstream answer_com(ANSWER_COM_PATH,std::ios::app);
if (answer_com.is_open()) {
answer_com << "not_found " << "\"" << filepath_ << "\"" << " " << hash << " " << "no_action_taken" << "\n";
answer_com.close();
if (is_valid_path(filepath_)) { //filter out invalid paths and paths with weird characters
std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else {
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) != 1) {
//notify desktop client by writing to answer_com file
//if there is now virus, we notify here. if there is a virus we only notify in the virus_ctrl_process function
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
answer_com << "not_found " << "\"" << filepath_ << "\"" << " " << hash << " " << "no_action_taken" << "\n";
answer_com.close();
}
}
}
else
log(LOGLEVEL::INFO_NOSEND, "[action_scanfile()]: Invalid path: ", filepath_);
thread_shutdown();
}
void action_scanfolder(const std::string& folderpath) {
thread_init();
cnt = 0;
thread_local std::string folderpath_(folderpath);
cnt = 0;
all_files = get_num_files(folderpath_);
//tell the desktop client that the scan has started
std::ofstream answer_com1(ANSWER_COM_PATH, std::ios::app);
if (answer_com1.is_open()) {
answer_com1 << "start " << all_files << "\n";
answer_com1.close();
}
scan_folder(folderpath_);
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
@@ -274,7 +323,6 @@ void scan_file_t(const std::string& filepath_) {
num_threads--;
}
void scan_process_t(const std::string& filepath_) {
num_threads++;
thread_local const std::string filepath(filepath_);
thread_local char* db_path = new char[300];
thread_local char* hash = new char[300];
@@ -288,6 +336,5 @@ void scan_process_t(const std::string& filepath_) {
log(LOGLEVEL::VIRUS, "[scan_process_t()]: Killing process: ", filepath);
}
}
num_threads--;
}
#endif

312
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@@ -0,0 +1,312 @@
#ifndef SCAN_CPP
#define SCAN_CPP
#include "scan.h"
#include <windows.h>
#include <iostream>
#include <openssl/md5.h>
#include <windows.h>
#include <iostream>
#include <thread>
#include <chrono>
#include <time.h>
#include "md5hash.h"
#include <string>
#include "well_known.h"
#include "log.h"
#include "virus_ctrl.h"
#include "app_ctrl.h"
#include <mutex> // Include the mutex header
#include <filesystem>
#include "utils.h"
// Define mutexes for thread synchronization
std::mutex fileHandlesMutex;
std::mutex mappingHandlesMutex;
std::mutex fileDataMutex;
std::mutex cntMutex;
std::mutex numThreadsMutex;
std::unordered_map<std::string, HANDLE> fileHandles;
std::unordered_map<std::string, HANDLE> mappingHandles;
std::unordered_map<std::string, char*> fileData;
int cnt = 0;
int num_threads = 0;
//load all the db files into memory
int initialize(const std::string& folderPath) {
for (char firstChar = '0'; firstChar <= 'f'; ++firstChar) {
for (char secondChar = '0'; secondChar <= 'f'; ++secondChar) {
// Ensure that the characters are valid hexadecimal digits
if (!std::isxdigit(firstChar) || !std::isxdigit(secondChar) or std::isupper(firstChar) or std::isupper(secondChar)) {
continue;
}
// Create the filename based on the naming convention
std::string filename = folderPath + "\\" + firstChar + secondChar + ".jdbf";
//printf("Loading %s\n", filename.c_str());
// Open the file
HANDLE hFile = CreateFile(filename.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
//log(LOGLEVEL::ERR, "[initialize()]: Error opening database file: ", filename);
return 1;
}
// Create the file mapping
HANDLE hMapping = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
if (hMapping == NULL) {
// log(LOGLEVEL::ERR, "[initialize()]: Error creating database file mapping: ", filename);
CloseHandle(hFile);
return 2;
}
// Map the file into memory
char* fileDataPtr = static_cast<char*>(MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0));
if (fileDataPtr == NULL) {
//log(LOGLEVEL::ERR, "[initialize()]: Error mapping database file: ", filename);
CloseHandle(hMapping);
CloseHandle(hFile);
return 3;
}
// Store the handles in the global maps
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
fileHandles[filename] = hFile;
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
mappingHandles[filename] = hMapping;
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileData[filename] = fileDataPtr;
}
}
}
return 0;
}
// Call this function when you are done using the file mappings
void cleanup() {
for (const auto& entry : fileHandles) {
UnmapViewOfFile(fileData[entry.first]);
CloseHandle(mappingHandles[entry.first]);
CloseHandle(entry.second);
}
// Clear the global maps
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
fileHandles.clear();
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
mappingHandles.clear();
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileData.clear();
}
}
//the latest and fastest version of searching a hash by now
int search_hash(const std::string& dbname_, const std::string& hash_, const std::string& filepath_) {
// Check if the file mapping is already open for the given filename
std::string dbname;
std::string hash;
std::string filepath;
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
dbname = dbname_;
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
hash = hash_;
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
filepath = filepath_;
}
auto fileIter = fileHandles.find(dbname);
if (fileIter == fileHandles.end() && dbname_.find("c:.jdbf") == std::string::npos) {
log(LOGLEVEL::ERR_NOSEND, "[search_hash()]: File mapping not initialized for ", dbname);
return 2;
}
else if (fileIter == fileHandles.end()) {
return 2;
}
// Use fileData for subsequent searches
DWORD fileSize;
std::string fileContent;
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileSize = GetFileSize(fileHandles[dbname], NULL);
fileContent = std::string(fileData[dbname], fileSize);
}
// Search for the specific string in the file content
size_t foundPos = fileContent.find(hash);
if (foundPos != std::string::npos) {
//log(LOGLEVEL::VIRUS, "[search_hash()]: Found virus: ", hash, " in file: ", filepath);
virus_ctrl_store(filepath.c_str(), hash.c_str(), hash.c_str());
//afterwards do the processing with that file
virus_ctrl_process(hash.c_str());
return 1; // Found
}
return 0; // Not found
}
bool file_exists(const std::string& filePath) {
DWORD fileAttributes = GetFileAttributes(filePath.c_str());
if (fileAttributes == INVALID_FILE_ATTRIBUTES) {
// The file does not exist or there was an error
return false;
}
// Check if it's a regular file and not a directory
return (fileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0;
}
//this is the main function to scan folders. it will then start multuiple threads based on the number of cores / settings
void scan_folder(const std::string& directory) {
std::string search_path = directory + "\\*.*";
WIN32_FIND_DATA find_file_data;
HANDLE hFind = FindFirstFile(search_path.c_str(), &find_file_data);
if (hFind == INVALID_HANDLE_VALUE) {
log(LOGLEVEL::WARN, "[scan_folder()]: Could not open directory: ", search_path.c_str(), " while scanning files inside directory.");
return;
}
do {
if (strcmp(find_file_data.cFileName, ".") == 0 || strcmp(find_file_data.cFileName, "..") == 0) {
continue; // Skip the current and parent directories
}
const std::string full_path = directory + "\\" + find_file_data.cFileName;
if (find_file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
// If it's a directory, recurse into it
scan_folder(full_path);
}
else {
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: Scanning file: ", full_path, "threads: ", num_threads);
//action scanfile_t will start the trheads for scanning the hashes
//action_scanfile_t(full_path.c_str());
//do multithreading here
int thread_timeout = 0;
while (num_threads >= std::thread::hardware_concurrency()) {
Sleep(10);
thread_timeout++;
if (thread_timeout == 100 * 60) {//if there is for more than 30 seconds no thread available, chances are high, that the threads did not temrinate correctly but aren t running anymore. so set the counter to 0 because else it might just stop the scan.
num_threads = 0;
printf("Number of threads_max: %d\n", num_threads);
}
}
//log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: Scanning file: ", full_path, "threads: ",num_threads);
if (is_valid_path(full_path)==0) {
std::uintmax_t fileSize = std::filesystem::file_size(full_path);
if (fileSize > 4000000000) {//4gb
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: File too large to scan: ", full_path);
}
else {
std::thread scan_thread(scan_file_t, full_path);
scan_thread.detach();
//Sleep(1);
}
}else
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: Invalid path: ", full_path);
cnt++;
if (cnt % 100 == 0) {
printf("Processed %d files;\n", cnt);
//printf("Number of threads: %d\n", num_threads);
}
if(num_threads<0)
printf("Number of threads_min: %d\n", num_threads);
}
} while (FindNextFile(hFind, &find_file_data) != 0);
FindClose(hFind);
}
//for singlethreaded scans
void action_scanfile(const std::string& filepath_) {
thread_init();
const std::string filepath(filepath_);
char* db_path = new char[300];
char* hash = new char[300];
std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else {
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) != 1) {
//notify desktop client by writing to answer_com file
//if there is now virus, we notify here. if there is a virus we only notify in the virus_ctrl_process function
std::ofstream answer_com(ANSWER_COM_PATH,std::ios::app);
if (answer_com.is_open()) {
answer_com << "not_found " << "\"" << filepath_ << "\"" << " " << hash << " " << "no_action_taken" << "\n";
answer_com.close();
}
}
thread_shutdown();
}
void action_scanfolder(const std::string& folderpath) {
thread_init();
cnt = 0;
thread_local std::string folderpath_(folderpath);
scan_folder(folderpath_);
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
answer_com << "end " << "\"" << "nothing" << "\"" << " " << "nothing" << " " << "nothing" << "\n";
answer_com.close();
}
thread_shutdown();
}
void scan_file_t(const std::string& filepath_) {
num_threads++;
thread_local const std::string filepath(filepath_);
thread_local char* db_path = new char[300];
thread_local char* hash = new char[300];
thread_local std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else{
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
search_hash(db_path, hash, filepath);
num_threads--;
}
void scan_process_t(const std::string& filepath_) {
num_threads++;
thread_local const std::string filepath(filepath_);
thread_local char* db_path = new char[300];
thread_local char* hash = new char[300];
strcpy_s(hash, 295, md5_file_t(filepath).c_str());
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) == 1) {
//check if need to kill process
if (get_setting("virus_ctrl:virus_process_found:kill") == 1) {
//kill the process
kill_process(filepath.c_str());
log(LOGLEVEL::VIRUS, "[scan_process_t()]: Killing process: ", filepath);
}
}
num_threads--;
}
#endif

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#ifndef SCAN_CPP
#define SCAN_CPP
#include "scan.h"
#include <windows.h>
#include <iostream>
#include <openssl/md5.h>
#include <windows.h>
#include <iostream>
#include <thread>
#include <chrono>
#include <time.h>
#include "md5hash.h"
#include <string>
#include "well_known.h"
#include "log.h"
#include "virus_ctrl.h"
#include "app_ctrl.h"
#include <mutex> // Include the mutex header
#include <filesystem>
#include "utils.h"
// Define mutexes for thread synchronization
std::mutex fileHandlesMutex;
std::mutex mappingHandlesMutex;
std::mutex fileDataMutex;
std::mutex cntMutex;
std::mutex numThreadsMutex;
std::unordered_map<std::string, HANDLE> fileHandles;
std::unordered_map<std::string, HANDLE> mappingHandles;
std::unordered_map<std::string, char*> fileData;
int cnt = 0;
int num_threads = 0;
//load all the db files into memory
int initialize(const std::string& folderPath) {
for (char firstChar = '0'; firstChar <= 'f'; ++firstChar) {
for (char secondChar = '0'; secondChar <= 'f'; ++secondChar) {
// Ensure that the characters are valid hexadecimal digits
if (!std::isxdigit(firstChar) || !std::isxdigit(secondChar) or std::isupper(firstChar) or std::isupper(secondChar)) {
continue;
}
// Create the filename based on the naming convention
std::string filename = folderPath + "\\" + firstChar + secondChar + ".jdbf";
//printf("Loading %s\n", filename.c_str());
// Open the file
HANDLE hFile = CreateFile(filename.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
//log(LOGLEVEL::ERR, "[initialize()]: Error opening database file: ", filename);
return 1;
}
// Create the file mapping
HANDLE hMapping = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
if (hMapping == NULL) {
// log(LOGLEVEL::ERR, "[initialize()]: Error creating database file mapping: ", filename);
CloseHandle(hFile);
return 2;
}
// Map the file into memory
char* fileDataPtr = static_cast<char*>(MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0));
if (fileDataPtr == NULL) {
//log(LOGLEVEL::ERR, "[initialize()]: Error mapping database file: ", filename);
CloseHandle(hMapping);
CloseHandle(hFile);
return 3;
}
// Store the handles in the global maps
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
fileHandles[filename] = hFile;
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
mappingHandles[filename] = hMapping;
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileData[filename] = fileDataPtr;
}
}
}
return 0;
}
// Call this function when you are done using the file mappings
void cleanup() {
for (const auto& entry : fileHandles) {
UnmapViewOfFile(fileData[entry.first]);
CloseHandle(mappingHandles[entry.first]);
CloseHandle(entry.second);
}
// Clear the global maps
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
fileHandles.clear();
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
mappingHandles.clear();
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileData.clear();
}
}
//the latest and fastest version of searching a hash by now
int search_hash(const std::string& dbname_, const std::string& hash_, const std::string& filepath_) {
// Check if the file mapping is already open for the given filename
std::string dbname;
std::string hash;
std::string filepath;
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
dbname = dbname_;
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
hash = hash_;
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
filepath = filepath_;
}
auto fileIter = fileHandles.find(dbname);
if (fileIter == fileHandles.end() && dbname_.find("c:.jdbf") == std::string::npos) {
log(LOGLEVEL::ERR_NOSEND, "[search_hash()]: File mapping not initialized for ", dbname);
return 2;
}
else if (fileIter == fileHandles.end()) {
return 2;
}
// Use fileData for subsequent searches
DWORD fileSize;
std::string fileContent;
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileSize = GetFileSize(fileHandles[dbname], NULL);
fileContent = std::string(fileData[dbname], fileSize);
}
// Search for the specific string in the file content
size_t foundPos = fileContent.find(hash);
if (foundPos != std::string::npos) {
//log(LOGLEVEL::VIRUS, "[search_hash()]: Found virus: ", hash, " in file: ", filepath);
virus_ctrl_store(filepath.c_str(), hash.c_str(), hash.c_str());
//afterwards do the processing with that file
virus_ctrl_process(hash.c_str());
return 1; // Found
}
return 0; // Not found
}
bool file_exists(const std::string& filePath) {
DWORD fileAttributes = GetFileAttributes(filePath.c_str());
if (fileAttributes == INVALID_FILE_ATTRIBUTES) {
// The file does not exist or there was an error
return false;
}
// Check if it's a regular file and not a directory
return (fileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0;
}
//this is the main function to scan folders. it will then start multuiple threads based on the number of cores / settings
void scan_folder(const std::string& directory) {
std::string search_path = directory + "\\*.*";
WIN32_FIND_DATA find_file_data;
HANDLE hFind = FindFirstFile(search_path.c_str(), &find_file_data);
if (hFind == INVALID_HANDLE_VALUE) {
log(LOGLEVEL::WARN, "[scan_folder()]: Could not open directory: ", search_path.c_str(), " while scanning files inside directory.");
return;
}
do {
if (strcmp(find_file_data.cFileName, ".") == 0 || strcmp(find_file_data.cFileName, "..") == 0) {
continue; // Skip the current and parent directories
}
const std::string full_path = directory + "\\" + find_file_data.cFileName;
if (find_file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
// If it's a directory, recurse into it
scan_folder(full_path);
}
else {
//action scanfile_t will start the trheads for scanning the hashes
//action_scanfile_t(full_path.c_str());
//do multithreading here
int thread_timeout = 0;
while (num_threads >= std::thread::hardware_concurrency()) {
Sleep(10);
thread_timeout++;
if (thread_timeout == 100 * 60) {//if there is for more than 30 seconds no thread available, chances are high, that the threads did not temrinate correctly but aren t running anymore. so set the counter to 0 because else it might just stop the scan.
num_threads = 0;
printf("Number of threads_max: %d\n", num_threads);
}
}
if (is_valid_path(full_path)) { //filter out invalid paths and paths with weird characters
std::uintmax_t fileSize = std::filesystem::file_size(full_path);
if (fileSize > 4000000000) {//4gb
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: File too large to scan: ", full_path);
}
else {
std::thread scan_thread(scan_file_t, full_path);
scan_thread.detach();
Sleep(10);
}
}else
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: Invalid path: ", full_path);
cnt++;
if (cnt % 100 == 0) {
printf("Processed %d files;\n", cnt);
//printf("Number of threads: %d\n", num_threads);
}
if(num_threads<0)
printf("Number of threads_min: %d\n", num_threads);
}
} while (FindNextFile(hFind, &find_file_data) != 0);
FindClose(hFind);
}
//for singlethreaded scans
void action_scanfile(const std::string& filepath_) {
thread_init();
const std::string filepath(filepath_);
char* db_path = new char[300];
char* hash = new char[300];
std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else {
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) != 1) {
//notify desktop client by writing to answer_com file
//if there is now virus, we notify here. if there is a virus we only notify in the virus_ctrl_process function
std::ofstream answer_com(ANSWER_COM_PATH,std::ios::app);
if (answer_com.is_open()) {
answer_com << "not_found " << "\"" << filepath_ << "\"" << " " << hash << " " << "no_action_taken" << "\n";
answer_com.close();
}
}
thread_shutdown();
}
void action_scanfolder(const std::string& folderpath) {
thread_init();
cnt = 0;
thread_local std::string folderpath_(folderpath);
scan_folder(folderpath_);
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
answer_com << "end " << "\"" << "nothing" << "\"" << " " << "nothing" << " " << "nothing" << "\n";
answer_com.close();
}
thread_shutdown();
}
void scan_file_t(const std::string& filepath_) {
num_threads++;
thread_local const std::string filepath(filepath_);
thread_local char* db_path = new char[300];
thread_local char* hash = new char[300];
thread_local std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else{
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
search_hash(db_path, hash, filepath);
num_threads--;
}
void scan_process_t(const std::string& filepath_) {
num_threads++;
thread_local const std::string filepath(filepath_);
thread_local char* db_path = new char[300];
thread_local char* hash = new char[300];
strcpy_s(hash, 295, md5_file_t(filepath).c_str());
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) == 1) {
//check if need to kill process
if (get_setting("virus_ctrl:virus_process_found:kill") == 1) {
//kill the process
kill_process(filepath.c_str());
log(LOGLEVEL::VIRUS, "[scan_process_t()]: Killing process: ", filepath);
}
}
num_threads--;
}
#endif

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#ifndef SCAN_CPP
#define SCAN_CPP
#include "scan.h"
#include <windows.h>
#include <iostream>
#include <openssl/md5.h>
#include <windows.h>
#include <iostream>
#include <thread>
#include <chrono>
#include <time.h>
#include "md5hash.h"
#include <string>
#include "well_known.h"
#include "log.h"
#include "virus_ctrl.h"
#include "app_ctrl.h"
#include <mutex> // Include the mutex header
#include <filesystem>
#include "utils.h"
// Define mutexes for thread synchronization
std::mutex fileHandlesMutex;
std::mutex mappingHandlesMutex;
std::mutex fileDataMutex;
std::mutex cntMutex;
std::mutex numThreadsMutex;
std::unordered_map<std::string, HANDLE> fileHandles;
std::unordered_map<std::string, HANDLE> mappingHandles;
std::unordered_map<std::string, char*> fileData;
int cnt = 0;
int num_threads = 0;
//load all the db files into memory
int initialize(const std::string& folderPath) {
for (char firstChar = '0'; firstChar <= 'f'; ++firstChar) {
for (char secondChar = '0'; secondChar <= 'f'; ++secondChar) {
// Ensure that the characters are valid hexadecimal digits
if (!std::isxdigit(firstChar) || !std::isxdigit(secondChar) or std::isupper(firstChar) or std::isupper(secondChar)) {
continue;
}
// Create the filename based on the naming convention
std::string filename = folderPath + "\\" + firstChar + secondChar + ".jdbf";
//printf("Loading %s\n", filename.c_str());
// Open the file
HANDLE hFile = CreateFile(filename.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
//log(LOGLEVEL::ERR, "[initialize()]: Error opening database file: ", filename);
return 1;
}
// Create the file mapping
HANDLE hMapping = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
if (hMapping == NULL) {
// log(LOGLEVEL::ERR, "[initialize()]: Error creating database file mapping: ", filename);
CloseHandle(hFile);
return 2;
}
// Map the file into memory
char* fileDataPtr = static_cast<char*>(MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0));
if (fileDataPtr == NULL) {
//log(LOGLEVEL::ERR, "[initialize()]: Error mapping database file: ", filename);
CloseHandle(hMapping);
CloseHandle(hFile);
return 3;
}
// Store the handles in the global maps
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
fileHandles[filename] = hFile;
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
mappingHandles[filename] = hMapping;
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileData[filename] = fileDataPtr;
}
}
}
return 0;
}
// Call this function when you are done using the file mappings
void cleanup() {
for (const auto& entry : fileHandles) {
UnmapViewOfFile(fileData[entry.first]);
CloseHandle(mappingHandles[entry.first]);
CloseHandle(entry.second);
}
// Clear the global maps
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
fileHandles.clear();
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
mappingHandles.clear();
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileData.clear();
}
}
//the latest and fastest version of searching a hash by now
int search_hash(const std::string& dbname_, const std::string& hash_, const std::string& filepath_) {
// Check if the file mapping is already open for the given filename
std::string dbname;
std::string hash;
std::string filepath;
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
dbname = dbname_;
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
hash = hash_;
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
filepath = filepath_;
}
auto fileIter = fileHandles.find(dbname);
if (fileIter == fileHandles.end() && dbname_.find("c:.jdbf") == std::string::npos) {
log(LOGLEVEL::ERR_NOSEND, "[search_hash()]: File mapping not initialized for ", dbname);
return 2;
}
else if (fileIter == fileHandles.end()) {
return 2;
}
// Use fileData for subsequent searches
DWORD fileSize;
std::string fileContent;
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileSize = GetFileSize(fileHandles[dbname], NULL);
fileContent = std::string(fileData[dbname], fileSize);
}
// Search for the specific string in the file content
size_t foundPos = fileContent.find(hash);
if (foundPos != std::string::npos) {
//log(LOGLEVEL::VIRUS, "[search_hash()]: Found virus: ", hash, " in file: ", filepath);
virus_ctrl_store(filepath.c_str(), hash.c_str(), hash.c_str());
//afterwards do the processing with that file
virus_ctrl_process(hash.c_str());
return 1; // Found
}
return 0; // Not found
}
bool file_exists(const std::string& filePath) {
DWORD fileAttributes = GetFileAttributes(filePath.c_str());
if (fileAttributes == INVALID_FILE_ATTRIBUTES) {
// The file does not exist or there was an error
return false;
}
// Check if it's a regular file and not a directory
return (fileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0;
}
//this is the main function to scan folders. it will then start multuiple threads based on the number of cores / settings
void scan_folder(const std::string& directory) {
std::string search_path = directory + "\\*.*";
WIN32_FIND_DATA find_file_data;
HANDLE hFind = FindFirstFile(search_path.c_str(), &find_file_data);
if (hFind == INVALID_HANDLE_VALUE) {
log(LOGLEVEL::WARN, "[scan_folder()]: Could not open directory: ", search_path.c_str(), " while scanning files inside directory.");
return;
}
do {
if (strcmp(find_file_data.cFileName, ".") == 0 || strcmp(find_file_data.cFileName, "..") == 0) {
continue; // Skip the current and parent directories
}
const std::string full_path = directory + "\\" + find_file_data.cFileName;
if (find_file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
// If it's a directory, recurse into it
scan_folder(full_path);
}
else {
//action scanfile_t will start the trheads for scanning the hashes
//action_scanfile_t(full_path.c_str());
//do multithreading here
int thread_timeout = 0;
while (num_threads >= std::thread::hardware_concurrency()) {
Sleep(10);
thread_timeout++;
if (thread_timeout == 100 * 60) {//if there is for more than 30 seconds no thread available, chances are high, that the threads did not temrinate correctly but aren t running anymore. so set the counter to 0 because else it might just stop the scan.
num_threads = 0;
printf("Number of threads_max: %d\n", num_threads);
}
}
if (is_valid_path(full_path)) { //filter out invalid paths and paths with weird characters
std::uintmax_t fileSize = std::filesystem::file_size(full_path);
if (fileSize > 4000000000) {//4gb
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: File too large to scan: ", full_path);
}
else {
std::thread scan_thread(scan_file_t, full_path);
scan_thread.detach();
}
}else
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: Invalid path: ", full_path);
cnt++;
if (cnt % 100 == 0) {
printf("Processed %d files;\n", cnt);
//printf("Number of threads: %d\n", num_threads);
}
if (cnt % 1000 == 0) {
//send progress to com file
printf("Processed %d files; Sending to frontend\n", cnt);
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
answer_com << "progress " << 50 << "\n";
answer_com.close();
}
}
if(num_threads<0)
printf("Number of threads_min: %d\n", num_threads);
}
} while (FindNextFile(hFind, &find_file_data) != 0);
FindClose(hFind);
}
//for singlethreaded scans
void action_scanfile(const std::string& filepath_) {
thread_init();
const std::string filepath(filepath_);
char* db_path = new char[300];
char* hash = new char[300];
if (is_valid_path(filepath_)) { //filter out invalid paths and paths with weird characters
std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else {
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) != 1) {
//notify desktop client by writing to answer_com file
//if there is now virus, we notify here. if there is a virus we only notify in the virus_ctrl_process function
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
answer_com << "not_found " << "\"" << filepath_ << "\"" << " " << hash << " " << "no_action_taken" << "\n";
answer_com.close();
}
}
}
else
log(LOGLEVEL::INFO_NOSEND, "[action_scanfile()]: Invalid path: ", filepath_);
thread_shutdown();
}
void action_scanfolder(const std::string& folderpath) {
thread_init();
cnt = 0;
thread_local std::string folderpath_(folderpath);
scan_folder(folderpath_);
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
answer_com << "end " << "\"" << "nothing" << "\"" << " " << "nothing" << " " << "nothing" << "\n";
answer_com.close();
}
thread_shutdown();
}
void scan_file_t(const std::string& filepath_) {
num_threads++;
thread_local const std::string filepath(filepath_);
thread_local char* db_path = new char[300];
thread_local char* hash = new char[300];
thread_local std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else{
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
search_hash(db_path, hash, filepath);
num_threads--;
}
void scan_process_t(const std::string& filepath_) {
num_threads++;
thread_local const std::string filepath(filepath_);
thread_local char* db_path = new char[300];
thread_local char* hash = new char[300];
strcpy_s(hash, 295, md5_file_t(filepath).c_str());
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) == 1) {
//check if need to kill process
if (get_setting("virus_ctrl:virus_process_found:kill") == 1) {
//kill the process
kill_process(filepath.c_str());
log(LOGLEVEL::VIRUS, "[scan_process_t()]: Killing process: ", filepath);
}
}
num_threads--;
}
#endif

344
src/client_backend/scan.cpp~RFe042c4.TMP Normal file
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@@ -0,0 +1,344 @@
#ifndef SCAN_CPP
#define SCAN_CPP
#include "scan.h"
#include <windows.h>
#include <iostream>
#include <openssl/md5.h>
#include <windows.h>
#include <iostream>
#include <thread>
#include <chrono>
#include <time.h>
#include "md5hash.h"
#include <string>
#include "well_known.h"
#include "log.h"
#include "virus_ctrl.h"
#include "app_ctrl.h"
#include <mutex> // Include the mutex header
#include <filesystem>
#include "utils.h"
// Define mutexes for thread synchronization
std::mutex fileHandlesMutex;
std::mutex mappingHandlesMutex;
std::mutex fileDataMutex;
std::mutex cntMutex;
std::mutex numThreadsMutex;
std::unordered_map<std::string, HANDLE> fileHandles;
std::unordered_map<std::string, HANDLE> mappingHandles;
std::unordered_map<std::string, char*> fileData;
int cnt = 0;
int num_threads = 0;
int all_files = 0;
//load all the db files into memory
int initialize(const std::string& folderPath) {
for (char firstChar = '0'; firstChar <= 'f'; ++firstChar) {
for (char secondChar = '0'; secondChar <= 'f'; ++secondChar) {
// Ensure that the characters are valid hexadecimal digits
if (!std::isxdigit(firstChar) || !std::isxdigit(secondChar) or std::isupper(firstChar) or std::isupper(secondChar)) {
continue;
}
// Create the filename based on the naming convention
std::string filename = folderPath + "\\" + firstChar + secondChar + ".jdbf";
//printf("Loading %s\n", filename.c_str());
// Open the file
HANDLE hFile = CreateFile(filename.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
//log(LOGLEVEL::ERR, "[initialize()]: Error opening database file: ", filename);
return 1;
}
// Create the file mapping
HANDLE hMapping = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
if (hMapping == NULL) {
// log(LOGLEVEL::ERR, "[initialize()]: Error creating database file mapping: ", filename);
CloseHandle(hFile);
return 2;
}
// Map the file into memory
char* fileDataPtr = static_cast<char*>(MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0));
if (fileDataPtr == NULL) {
//log(LOGLEVEL::ERR, "[initialize()]: Error mapping database file: ", filename);
CloseHandle(hMapping);
CloseHandle(hFile);
return 3;
}
// Store the handles in the global maps
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
fileHandles[filename] = hFile;
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
mappingHandles[filename] = hMapping;
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileData[filename] = fileDataPtr;
}
}
}
return 0;
}
// Call this function when you are done using the file mappings
void cleanup() {
for (const auto& entry : fileHandles) {
UnmapViewOfFile(fileData[entry.first]);
CloseHandle(mappingHandles[entry.first]);
CloseHandle(entry.second);
}
// Clear the global maps
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
fileHandles.clear();
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
mappingHandles.clear();
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileData.clear();
}
}
//the latest and fastest version of searching a hash by now
int search_hash(const std::string& dbname_, const std::string& hash_, const std::string& filepath_) {
// Check if the file mapping is already open for the given filename
std::string dbname;
std::string hash;
std::string filepath;
{
std::lock_guard<std::mutex> lock(fileHandlesMutex);
dbname = dbname_;
}
{
std::lock_guard<std::mutex> lock(fileDataMutex);
hash = hash_;
}
{
std::lock_guard<std::mutex> lock(mappingHandlesMutex);
filepath = filepath_;
}
auto fileIter = fileHandles.find(dbname);
if (fileIter == fileHandles.end() && dbname_.find("c:.jdbf") == std::string::npos) {
log(LOGLEVEL::ERR_NOSEND, "[search_hash()]: File mapping not initialized for ", dbname);
return 2;
}
else if (fileIter == fileHandles.end()) {
return 2;
}
// Use fileData for subsequent searches
DWORD fileSize;
std::string fileContent;
{
std::lock_guard<std::mutex> lock(fileDataMutex);
fileSize = GetFileSize(fileHandles[dbname], NULL);
fileContent = std::string(fileData[dbname], fileSize);
}
// Search for the specific string in the file content
size_t foundPos = fileContent.find(hash);
if (foundPos != std::string::npos) {
//log(LOGLEVEL::VIRUS, "[search_hash()]: Found virus: ", hash, " in file: ", filepath);
virus_ctrl_store(filepath.c_str(), hash.c_str(), hash.c_str());
//afterwards do the processing with that file
virus_ctrl_process(hash.c_str());
return 1; // Found
}
return 0; // Not found
}
//function to get num of files in idr and its subdirs etc
int get_num_files(const std::string& directory) {
std::string search_path = directory + "\\*.*";
WIN32_FIND_DATA find_file_data;
HANDLE hFind = FindFirstFile(search_path.c_str(), &find_file_data);
int num_files = 0;
if (hFind == INVALID_HANDLE_VALUE) {
log(LOGLEVEL::ERR_NOSEND, "[get_num_files()]: Could not open directory: ", search_path.c_str(), " while scanning files inside directory.");
return 0;
}
do {
if (strcmp(find_file_data.cFileName, ".") == 0 || strcmp(find_file_data.cFileName, "..") == 0) {
continue; // Skip the current and parent directories
}
const std::string full_path = directory + "\\" + find_file_data.cFileName;
if (find_file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
// If it's a directory, recurse into it
num_files += get_num_files(full_path);
}
else {
num_files++;
}
} while (FindNextFile(hFind, &find_file_data) != 0);
FindClose(hFind);
return num_files;
}
//this is the main function to scan folders. it will then start multuiple threads based on the number of cores / settings
void scan_folder(const std::string& directory) {
std::string search_path = directory + "\\*.*";
WIN32_FIND_DATA find_file_data;
HANDLE hFind = FindFirstFile(search_path.c_str(), &find_file_data);
if (hFind == INVALID_HANDLE_VALUE) {
log(LOGLEVEL::WARN, "[scan_folder()]: Could not open directory: ", search_path.c_str(), " while scanning files inside directory.");
return;
}
do {
if (strcmp(find_file_data.cFileName, ".") == 0 || strcmp(find_file_data.cFileName, "..") == 0) {
continue; // Skip the current and parent directories
}
const std::string full_path = directory + "\\" + find_file_data.cFileName;
if (find_file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
// If it's a directory, recurse into it
scan_folder(full_path);
}
else {
//action scanfile_t will start the trheads for scanning the hashes
//action_scanfile_t(full_path.c_str());
if (cnt > 47400) {
//say which file we are scanning now
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: Scanning file: ", full_path);
}
//do multithreading here
int thread_timeout = 0;
while (num_threads >= std::thread::hardware_concurrency()) {
Sleep(10);
thread_timeout++;
if (thread_timeout == 100 * 60) {//if there is for more than 30 seconds no thread available, chances are high, that the threads did not temrinate correctly but aren t running anymore. so set the counter to 0 because else it might just stop the scan.
num_threads = 0;
}
}
if (is_valid_path(full_path)) { //filter out invalid paths and paths with weird characters
std::uintmax_t fileSize = std::filesystem::file_size(full_path);
if (fileSize > 4000000000) {//4gb
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: File too large to scan: ", full_path);
}
else {
std::thread scan_thread(scan_file_t, full_path);
scan_thread.detach();
}
}else
log(LOGLEVEL::INFO_NOSEND, "[scan_folder()]: Invalid path: ", full_path);
cnt++;
if (cnt % 100 == 0) {
printf("Processed %d files;\n", cnt);
//printf("Number of threads: %d\n", num_threads);
}
if (cnt % 1000 == 0) {
//send progress to com file
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
answer_com << "progress " << (cnt*100/(all_files+1)) << "\n";
answer_com.close();
}
}
}
} while (FindNextFile(hFind, &find_file_data) != 0);
FindClose(hFind);
}
//for singlethreaded scans
void action_scanfile(const std::string& filepath_) {
thread_init();
const std::string filepath(filepath_);
char* db_path = new char[300];
char* hash = new char[300];
if (is_valid_path(filepath_)) { //filter out invalid paths and paths with weird characters
std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else {
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) != 1) {
//notify desktop client by writing to answer_com file
//if there is now virus, we notify here. if there is a virus we only notify in the virus_ctrl_process function
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
answer_com << "not_found " << "\"" << filepath_ << "\"" << " " << hash << " " << "no_action_taken" << "\n";
answer_com.close();
}
}
}
else
log(LOGLEVEL::INFO_NOSEND, "[action_scanfile()]: Invalid path: ", filepath_);
thread_shutdown();
}
void action_scanfolder(const std::string& folderpath) {
thread_init();
thread_local std::string folderpath_(folderpath);
cnt = 0;
all_files = get_num_files(folderpath_);
//tell the desktop client that the scan has started
std::ofstream answer_com1(ANSWER_COM_PATH, std::ios::app);
if (answer_com1.is_open()) {
answer_com1 << "start " << all_files << "\n";
answer_com1.close();
}
scan_folder(folderpath_);
std::ofstream answer_com(ANSWER_COM_PATH, std::ios::app);
if (answer_com.is_open()) {
answer_com << "end " << "\"" << "nothing" << "\"" << " " << "nothing" << " " << "nothing" << "\n";
answer_com.close();
}
thread_shutdown();
}
void scan_file_t(const std::string& filepath_) {
num_threads++;
thread_local const std::string filepath(filepath_);
thread_local char* db_path = new char[300];
thread_local char* hash = new char[300];
thread_local std::string hash_(md5_file_t(filepath));
if (strlen(hash_.c_str()) < 290)
strcpy_s(hash, 295, hash_.c_str());
else{
strcpy_s(hash, 295, "");
log(LOGLEVEL::ERR_NOSEND, "[scan_file_t()]: Could not calculate hash for file: ", filepath);
}
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
search_hash(db_path, hash, filepath);
num_threads--;
}
void scan_process_t(const std::string& filepath_) {
thread_local const std::string filepath(filepath_);
thread_local char* db_path = new char[300];
thread_local char* hash = new char[300];
strcpy_s(hash, 295, md5_file_t(filepath).c_str());
sprintf_s(db_path, 295, "%s\\%c%c.jdbf", DB_DIR, hash[0], hash[1]);
if (search_hash(db_path, hash, filepath) == 1) {
//check if need to kill process
if (get_setting("virus_ctrl:virus_process_found:kill") == 1) {
//kill the process
kill_process(filepath.c_str());
log(LOGLEVEL::VIRUS, "[scan_process_t()]: Killing process: ", filepath);
}
}
}
#endif

7
src/client_backend/thread_ctrl.cpp
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@@ -51,12 +51,7 @@ int start_thread(const std::string& command) {
t1.detach();
has_run = 1;
}
if (has_run) {
while (can_run_thread()) {
// Delay a bit to wait until the thread is started
std::this_thread::sleep_for(std::chrono::milliseconds(10));
}
}
Sleep(10); // Sleep for 10 ms to give the thread time to start
}
return 0;
}

27
src/client_backend/utils.cpp
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@@ -4,6 +4,9 @@
#include <iostream>
#include "log.h"
#include <tlhelp32.h>
#include <regex>
#include <filesystem>
#include <regex>
void split(const std::string& input, char delimiter, std::string& out1, std::string& out2) {
// Split a string at the delimiter. The delimiter only occurs once.
@@ -14,6 +17,17 @@ void split(const std::string& input, char delimiter, std::string& out1, std::str
out2 = input.substr(pos + 1);
}
}
bool is_valid_path(const std::string& filename) {
for (char c : filename) {
if (c == '<' || c == '>' || c == '"' || c == '|' || c == '?' || c == '*' || c > 126 || c < 32 ) {
return 0; // Special character found
}
}
if (!std::filesystem::exists(filename)) {
return 0; // File does not exist
}
return 1; // No special character found
}
void startup(LPCTSTR lpApplicationName)
@@ -91,4 +105,17 @@ void kill_process(const std::string& path) {
hRes = Process32Next(hSnapShot, &pEntry);
}
CloseHandle(hSnapShot);
}
bool file_exists(const std::string& filePath) {
DWORD fileAttributes = GetFileAttributes(filePath.c_str());
if (fileAttributes == INVALID_FILE_ATTRIBUTES) {
// The file does not exist or there was an error
return false;
}
// Check if it's a regular file and not a directory
return (fileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0;
}

102
src/client_backend/utils.cpp~RF2156205.TMP Normal file
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@@ -0,0 +1,102 @@
#include "utils.h"
#include <windows.h>
#include <string.h>
#include <iostream>
#include "log.h"
#include <tlhelp32.h>
#include <regex>
void split(const std::string& input, char delimiter, std::string& out1, std::string& out2) {
// Split a string at the delimiter. The delimiter only occurs once.
// The first part is stored in out1 and the second part in out2.
size_t pos = input.find(delimiter);
if (pos != std::string::npos) {
out1 = input.substr(0, pos);
out2 = input.substr(pos + 1);
}
}
bool is_valid_path(const std::string& filename) {
// Define a regular expression pattern for allowed characters
// This pattern allows letters (upper and lower case), numbers, underscores, and hyphens
std::regex pattern("[^<>:\"/\\\\|?*]+");
// Check if the filename matches the pattern
return std::regex_match(filename, pattern);
}
void startup(LPCTSTR lpApplicationName)
{
// additional information
STARTUPINFO si;
PROCESS_INFORMATION pi;
// set the size of the structures
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
// start the program up
CreateProcess(lpApplicationName, // the path
NULL, // Command line
NULL, // Process handle not inheritable
NULL, // Thread handle not inheritable
FALSE, // Set handle inheritance to FALSE
0, // No creation flags
NULL, // Use parent's environment block
NULL, // Use parent's starting directory
&si, // Pointer to STARTUPINFO structure
&pi // Pointer to PROCESS_INFORMATION structure
);
// Close process and thread handles.
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
std::string get_filename(const std::string& path) {
auto pos = path.find_last_of("\\");
if (pos == std::string::npos) {
// No directory separator found, return the original path
return path;
}
else {
// Return the substring after the last directory separator
return path.substr(pos + 1);
}
}
int strcasecmp(const std::string& s1, const std::string& s2) {
auto it1 = s1.begin();
auto it2 = s2.begin();
while (it1 != s1.end() && it2 != s2.end()) {
int diff = std::tolower(*it1) - std::tolower(*it2);
if (diff != 0)
return diff;
++it1;
++it2;
}
return 0;
}
void kill_process(const std::string& path) {
HANDLE hSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPALL, NULL);
PROCESSENTRY32 pEntry;
pEntry.dwSize = sizeof(pEntry);
BOOL hRes = Process32First(hSnapShot, &pEntry);
while (hRes)
{
if (strcasecmp(pEntry.szExeFile, get_filename(path).c_str()) == 0)
{
HANDLE hProcess = OpenProcess(PROCESS_TERMINATE, 0, static_cast<DWORD>(pEntry.th32ProcessID));
if (hProcess != NULL)
{
TerminateProcess(hProcess, 9);
CloseHandle(hProcess);
}
else
log(LOGLEVEL::ERR, "[kill_process()]: Error while killing process: ", path);
}
hRes = Process32Next(hSnapShot, &pEntry);
}
CloseHandle(hSnapShot);
}

0
src/client_backend/utils.cpp~RF2277854.TMP Normal file
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0
src/client_backend/utils.cpp~RF2277864.TMP Normal file
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105
src/client_backend/utils.cpp~RF27f7ad9.TMP Normal file
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@@ -0,0 +1,105 @@
#include "utils.h"
#include <windows.h>
#include <string.h>
#include <iostream>
#include "log.h"
#include <tlhelp32.h>
#include <regex>
#include <filesystem>
#include <regex>
void split(const std::string& input, char delimiter, std::string& out1, std::string& out2) {
// Split a string at the delimiter. The delimiter only occurs once.
// The first part is stored in out1 and the second part in out2.
size_t pos = input.find(delimiter);
if (pos != std::string::npos) {
out1 = input.substr(0, pos);
out2 = input.substr(pos + 1);
}
}
bool is_valid_path(const std::string& filename) {
for (char c : filename) {
if (c == '<' || c == '>' || c == '"' || c == '|' || c == '?' || c == '*') {
return 0; // Special character found
}
}
return 1; // No special character found
}
void startup(LPCTSTR lpApplicationName)
{
// additional information
STARTUPINFO si;
PROCESS_INFORMATION pi;
// set the size of the structures
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
// start the program up
CreateProcess(lpApplicationName, // the path
NULL, // Command line
NULL, // Process handle not inheritable
NULL, // Thread handle not inheritable
FALSE, // Set handle inheritance to FALSE
0, // No creation flags
NULL, // Use parent's environment block
NULL, // Use parent's starting directory
&si, // Pointer to STARTUPINFO structure
&pi // Pointer to PROCESS_INFORMATION structure
);
// Close process and thread handles.
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
std::string get_filename(const std::string& path) {
auto pos = path.find_last_of("\\");
if (pos == std::string::npos) {
// No directory separator found, return the original path
return path;
}
else {
// Return the substring after the last directory separator
return path.substr(pos + 1);
}
}
int strcasecmp(const std::string& s1, const std::string& s2) {
auto it1 = s1.begin();
auto it2 = s2.begin();
while (it1 != s1.end() && it2 != s2.end()) {
int diff = std::tolower(*it1) - std::tolower(*it2);
if (diff != 0)
return diff;
++it1;
++it2;
}
return 0;
}
void kill_process(const std::string& path) {
HANDLE hSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPALL, NULL);
PROCESSENTRY32 pEntry;
pEntry.dwSize = sizeof(pEntry);
BOOL hRes = Process32First(hSnapShot, &pEntry);
while (hRes)
{
if (strcasecmp(pEntry.szExeFile, get_filename(path).c_str()) == 0)
{
HANDLE hProcess = OpenProcess(PROCESS_TERMINATE, 0, static_cast<DWORD>(pEntry.th32ProcessID));
if (hProcess != NULL)
{
TerminateProcess(hProcess, 9);
CloseHandle(hProcess);
}
else
log(LOGLEVEL::ERR, "[kill_process()]: Error while killing process: ", path);
}
hRes = Process32Next(hSnapShot, &pEntry);
}
CloseHandle(hSnapShot);
}

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@@ -0,0 +1,105 @@
#include "utils.h"
#include <windows.h>
#include <string.h>
#include <iostream>
#include "log.h"
#include <tlhelp32.h>
#include <regex>
#include <filesystem>
#include <regex>
void split(const std::string& input, char delimiter, std::string& out1, std::string& out2) {
// Split a string at the delimiter. The delimiter only occurs once.
// The first part is stored in out1 and the second part in out2.
size_t pos = input.find(delimiter);
if (pos != std::string::npos) {
out1 = input.substr(0, pos);
out2 = input.substr(pos + 1);
}
}
bool is_valid_path(const std::string& filename) {
for (char c : filename) {
if (c == '<' || c == '>' || c == '"' || c == '|' || c == '?' || c == '*' || c > 126 || c < 32 ) {
return 0; // Special character found
}
}
return 1; // No special character found
}
void startup(LPCTSTR lpApplicationName)
{
// additional information
STARTUPINFO si;
PROCESS_INFORMATION pi;
// set the size of the structures
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
// start the program up
CreateProcess(lpApplicationName, // the path
NULL, // Command line
NULL, // Process handle not inheritable
NULL, // Thread handle not inheritable
FALSE, // Set handle inheritance to FALSE
0, // No creation flags
NULL, // Use parent's environment block
NULL, // Use parent's starting directory
&si, // Pointer to STARTUPINFO structure
&pi // Pointer to PROCESS_INFORMATION structure
);
// Close process and thread handles.
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
std::string get_filename(const std::string& path) {
auto pos = path.find_last_of("\\");
if (pos == std::string::npos) {
// No directory separator found, return the original path
return path;
}
else {
// Return the substring after the last directory separator
return path.substr(pos + 1);
}
}
int strcasecmp(const std::string& s1, const std::string& s2) {
auto it1 = s1.begin();
auto it2 = s2.begin();
while (it1 != s1.end() && it2 != s2.end()) {
int diff = std::tolower(*it1) - std::tolower(*it2);
if (diff != 0)
return diff;
++it1;
++it2;
}
return 0;
}
void kill_process(const std::string& path) {
HANDLE hSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPALL, NULL);
PROCESSENTRY32 pEntry;
pEntry.dwSize = sizeof(pEntry);
BOOL hRes = Process32First(hSnapShot, &pEntry);
while (hRes)
{
if (strcasecmp(pEntry.szExeFile, get_filename(path).c_str()) == 0)
{
HANDLE hProcess = OpenProcess(PROCESS_TERMINATE, 0, static_cast<DWORD>(pEntry.th32ProcessID));
if (hProcess != NULL)
{
TerminateProcess(hProcess, 9);
CloseHandle(hProcess);
}
else
log(LOGLEVEL::ERR, "[kill_process()]: Error while killing process: ", path);
}
hRes = Process32Next(hSnapShot, &pEntry);
}
CloseHandle(hSnapShot);
}

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@@ -6,4 +6,6 @@ std::string get_filename(const std::string& path);
int strcasecmp(const std::string& s1, const std::string& s2);
void kill_process(const std::string& path);
void startup(LPCTSTR lpApplicationName);
void split(const std::string& input, char delimiter, std::string& out1, std::string& out2);
void split(const std::string& input, char delimiter, std::string& out1, std::string& out2);
bool is_valid_path(const std::string& filename);
bool file_exists(const std::string& filename);

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