137 lines
3.1 KiB
C
137 lines
3.1 KiB
C
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#include <windows.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define STACKSIZE 32768
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typedef BOOL (* LPDEBUG_BREAK_PROCESS_ROUTINE) (
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HANDLE Process
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);
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VOID
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DebugPriv(
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VOID
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)
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{
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HANDLE Token ;
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UCHAR Buf[ sizeof( TOKEN_PRIVILEGES ) + sizeof( LUID_AND_ATTRIBUTES ) ];
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UCHAR Buf2[ sizeof( Buf ) ];
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PTOKEN_PRIVILEGES Privs ;
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PTOKEN_PRIVILEGES NewPrivs ;
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DWORD size ;
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if (OpenProcessToken( GetCurrentProcess(),
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MAXIMUM_ALLOWED,
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&Token )) {
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Privs = (PTOKEN_PRIVILEGES) Buf ;
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Privs->PrivilegeCount = 1 ;
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Privs->Privileges[0].Luid.LowPart = 20L ;
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Privs->Privileges[0].Luid.HighPart = 0 ;
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Privs->Privileges[0].Attributes = SE_PRIVILEGE_ENABLED ;
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NewPrivs = (PTOKEN_PRIVILEGES) Buf2 ;
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AdjustTokenPrivileges( Token,
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FALSE,
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Privs,
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sizeof( Buf2 ),
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NewPrivs,
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&size );
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CloseHandle( Token );
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}
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}
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int
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__cdecl
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main(
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int argc,
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char **argv
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)
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{
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LPTHREAD_START_ROUTINE DbgBreakPoint;
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LPDEBUG_BREAK_PROCESS_ROUTINE DebugBreakProcessRoutine;
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HANDLE ntdll, kernel32;
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ULONG ProcessId;
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ULONG ThreadId;
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HANDLE Process;
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HANDLE Thread;
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if (argc != 2) {
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usage:
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fprintf(stderr, "usage: breakin <pid>\n");
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exit(1);
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}
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ProcessId = atoi(argv[1]);
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if (ProcessId == 0) {
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goto usage;
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}
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DebugPriv();
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Process = OpenProcess(
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PROCESS_ALL_ACCESS,
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FALSE,
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ProcessId
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);
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if (Process) {
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kernel32 = GetModuleHandle("kernel32.dll");
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if (kernel32) {
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DebugBreakProcessRoutine = (LPDEBUG_BREAK_PROCESS_ROUTINE)GetProcAddress(kernel32, "DebugBreakProcess");
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if (DebugBreakProcessRoutine) {
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if (!(*DebugBreakProcessRoutine)(Process)) {
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printf("DebugBreakProcess failed %d\n", GetLastError());
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}
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CloseHandle(Process);
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return 0;
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}
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}
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ntdll = GetModuleHandle("ntdll.dll");
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if (ntdll) {
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DbgBreakPoint = (LPTHREAD_START_ROUTINE)GetProcAddress(ntdll, "DbgBreakPoint");
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if (DbgBreakPoint) {
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Thread = CreateRemoteThread(
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Process,
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NULL,
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STACKSIZE,
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DbgBreakPoint,
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NULL,
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0,
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&ThreadId
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);
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if (Thread){
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CloseHandle(Thread);
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}
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}
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}
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CloseHandle(Process);
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} else {
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printf("Open process failed %d\n", GetLastError());
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}
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return 0;
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}
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