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goyiyi's Introduction

GoYiyi

提供一个Golang 的bypass AV 思路。

文件介绍

  1. AES加密 -> 将shellcode进行AES加密;
  2. 内存加载shellcode -> 用来生成可执行木马;
  3. 内存加载shellcode2 -> "内存加载shellcode"加载器重构版, 也是用来生成可执行木马, 能过的杀软比"内存加载shellcode"多;
  4. 反虚拟机 -> 在"内存加载shellcode2"基础上增加了反虚拟机的功能。

流程

总的来说,就是AES加密shellcode -> 用加载器解密并加载shellcode:

  1. 将Cobalt_Strike 生成的shellcode(C语言,格式替换为0x00,0x00)放入"AES"中加密;
  2. 将加密过后的shellcode 放入文件"内存加载shellcode(内存加载shellcode2、反虚拟机)"的main.go中;
  3. 用-ldflags="-H windowsgui" 打包内存加载shellcode(或者内存加载shellcode2、反虚拟机)。

(用"内存加载shellcode"打包的exe不能过火绒; 用"内存加载shellcode2"打包的exe过火绒、360和Windows Defender等)

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goyiyi's Issues

Call to VirtualProtect failed!

panic: Call to VirtualProtect failed!

goroutine 1 [running]:
main.Run(0x0, 0x0, 0x0)

Memory_load_shellcode/main.go:38 +0x19d
Memory_load_shellcode/main.go:82 +0x132

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