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bypassload's Introduction

BypassLoad

通过远程加载AES + XOR异或加密shellcode的免杀加载器,无过多技术细节。

shellcode 360杀毒 火绒 Defender 腾讯电脑管家 VT
Meterpreter 13/69
Cobalt Strike 13/69

推荐Meterpreter生成shellcode,Cobalt Strike在尝试远程加载的shellcode时可能被360拦截

可自行加壳修改程序尝试

releases程序可能会被杀软hash标记,保证免杀效果请自行编译

如果你不知道怎么做,不推荐使用该程序

声明:

  1. 文中所涉及的技术、思路和工具仅供以安全为目的的学习交流使用,任何人不得将其用于非法用途以及盈利等目的,否则后果自行承担!
  2. 水平不高,纯萌新刚刚开始研究免杀,面向Github编程借鉴了很多大佬的代码。
  3. 目前测试通过360、火绒、腾讯电脑管家、Defender。其他自行测试

使用指南

  1. 编译BypassLoad和Encrypt
  2. 将shellcode写入shellcode.txt然后运行Encrypt.exe进行加密编码(注意需要手动去除换行)
  3. 将Encrypt.exe加密编码后的数据上传至服务器
  4. 将远程访问链接写入webpath.txt
  5. 运行BypassLoad.exe

注意:存在一段if判断内存是否小于4G,进行简单的反沙箱判断。

更新

2024年03月11日

  1. 更新2.0 使用.Net内置函数替换原有使用的Windows函数

2024年01月29日

  1. 效果优化,更换加载方式
  2. 不再提供releases,请自行编译

2024年01月26日

  1. 效果优化
  2. 请不要将程序放入沙箱,以延长免杀时间

2024年01月24日

  1. 效果优化,现已免杀Defender
  2. 现在基于.NET Framework4.7.2框架
  3. 移除了一段无效代码

bypassload's People

Contributors

mangofang avatar

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