Why was my other thread deleted? Credits to a59, may need modification to protect essential processes.
#include <windows.h>
#include <stdio.h>
#include <tlhelp32.h>
void DoSearch( unsigned long uStartAddr, unsigned long uEndAddr, PROCESSENTRY32 pe32 );
void KillBot( PROCESSENTRY32 pe32 );
struct s_Search
{
char* szBot;
char* szString;
};
s_Search sSearch[ ] =
{
{ "VNC Scanning Bot", "\x52\x46\x42\x20\x30\x30\x33\x2E\x30\x30\x38\x0A" },
{ "RXBot", "[MAIN]" },
{ "RXBot", "[SCAN]" },
{ "RXBot", "[FTP]" },
{ "Unknown", "&echo bye" },
{ NULL, NULL }
};
void DoSearch( unsigned long uStartAddr, unsigned long uEndAddr, PROCESSENTRY32 pe32 )
{
char szBigBuffer[ 0x5000 ] = { 0 };
unsigned char Curbuf[ 0x500 ] = { 0 };
HANDLE hProcess = OpenProcess( PROCESS_ALL_ACCESS, FALSE, pe32.th32ProcessID );
printf( "Scanning PID: %d [ %s ]\nStart Address: 0x%08X End Address: 0x%08X\n\n", pe32.th32ProcessID, pe32.szExeFile, uStartAddr, uEndAddr );
for( unsigned long uCurAddr = uStartAddr; uCurAddr <= uEndAddr; uCurAddr++ )
{
BOOL bRead = ReadProcessMemory( hProcess, (void *)uCurAddr, (void *)&Curbuf, sizeof( Curbuf ), NULL );
if( bRead )
{
int c = 0;
strcat( szBigBuffer, (char *)Curbuf );
while( sSearch[ c ].szString != NULL )
{
if( strstr( szBigBuffer, sSearch[ c ].szString ) )
{
printf( "Found string \"%s\" in \"%s\" bot \"%s\"\n\n", sSearch[ c ].szString, pe32.szExeFile, sSearch[ c ].szBot );
KillBot( pe32 );
}
c++;
}
if( sizeof( szBigBuffer ) > 0x150 )
ZeroMemory( szBigBuffer, sizeof( szBigBuffer ) );
}
if( !bRead )
break;
}
CloseHandle( hProcess );
};
void KillBot( PROCESSENTRY32 pe32 )
{
MODULEENTRY32 me32 = { 0 };
HANDLE hPath = CreateToolhelp32Snapshot( TH32CS_SNAPMODULE, pe32.th32ProcessID );
HANDLE hKillProcess;
me32.dwSize = sizeof( me32 );
BOOL bRetval = Module32First( hPath, &me32 );
while( bRetval )
{
if( !strcmp( pe32.szExeFile, me32.szModule ) )
{
SetFileAttributes( me32.szExePath, FILE_ATTRIBUTE_NORMAL );
hKillProcess = OpenProcess( PROCESS_ALL_ACCESS, FALSE, pe32.th32ProcessID );
TerminateProcess( hKillProcess, 0 );
Sleep( 500 );
if( DeleteFile( me32.szExePath ) )
printf( "Terminated and deleted %s\n", me32.szExePath );
}
bRetval = Module32Next( hPath, &me32 );
}
CloseHandle( hKillProcess );
CloseHandle( hPath );
};
int main( )
{
char szFile[ 128 ];
GetModuleFileName( GetModuleHandle( NULL ), szFile, sizeof( szFile ) );
char* szBlockList[ ] = { "explorer.exe", "hidserv.exe", "WINLOGON.EXE", "SERVICES.EXE", szFile };
HANDLE hProcess = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 );
PROCESSENTRY32 pe32;
pe32.dwSize = sizeof( PROCESSENTRY32 );
BOOL bRetval = Process32First( hProcess, &pe32 );
bool bDoSearch = true;
while( bRetval )
{
Sleep( 250 );
for( int i = 0; i < ( sizeof( szBlockList ) / sizeof( char* ) ); i++ )
{
if( strstr( szBlockList[ i ], pe32.szExeFile ) )
bDoSearch = false;
}
if( bDoSearch )
{
DoSearch( 0x00400000, 0x004FFFFF, pe32 );
DoSearch( 0x00100000 ,0x001FFFFF, pe32 );
}
else
bDoSearch = true;
bRetval = Process32Next( hProcess, &pe32 );
}
CloseHandle( hProcess );
printf( "Done scanning, press ENTER to exit this program.\n" );
getchar( );
return 0;
};