(C++) Kill Process by Thomas Roccia (fr0gger)
Created the Thursday 01 October 2020. Updated 5 months, 1 week ago.
Description:
Using the CreateToolhelp32Snapshot
API, it is possible to list the running process and compare it with a blacklist to kill them.
Code
#include <iostream>
#include <string>
#include <tchar.h>
#include <process.h>
#include <windows.h>
#include <tlhelp32.h>
using namespace std;
BOOL GetProcessList();
BOOL TerminateMyProcess(DWORD dwProcessId, UINT uExitCode);
int main( void )
{
GetProcessList( );
return 0;
}
BOOL GetProcessList( )
{
HANDLE hProcessSnap;
HANDLE hProcess;
PROCESSENTRY32 pe32;
DWORD dwPriorityClass;
//Blacklisted processes
LPSTR ProcessName[] = { "ida.Exe",
"ProcMon.exe",
"Olldbg.exe",
"Wireshark.exe",
"iexplore.exe"
};
// Take a snapshot of processes
hProcessSnap = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 );
if( hProcessSnap == INVALID_HANDLE_VALUE )
{
return( FALSE );
}
pe32.dwSize = sizeof( PROCESSENTRY32 );
if( !Process32First( hProcessSnap, &pe32 ) )
{
CloseHandle( hProcessSnap );
return( FALSE );
}
do
{
string str(pe32.szExeFile);
for (int i = 0; i < (sizeof(ProcessName) / sizeof(LPSTR)); i++)
{
if(str == ProcessName[i])
{
cout << "[*] processus exists: " << (ProcessName[i]) << endl;
TerminateBlacklistedProcess(pe32.th32ProcessID, 1);
}
}
} while( Process32Next( hProcessSnap, &pe32 ) );
CloseHandle( hProcessSnap );
return( TRUE );
}
// Terminate the blacklisted processes
BOOL TerminateBlacklistedProcess(DWORD dwProcessId, UINT uExitCode)
{
DWORD dwDesiredAccess = PROCESS_TERMINATE;
BOOL bInheritHandle = FALSE;
HANDLE hProcess = OpenProcess(dwDesiredAccess, bInheritHandle, dwProcessId);
if (hProcess == NULL)
return FALSE;
BOOL result = TerminateProcess(hProcess, uExitCode);
CloseHandle(hProcess);
return result;
}