mimipenguin

A tool to dump the login password from the current linux desktop user. Adapted from the idea behind the popular Windows tool mimikatz.

Details

Takes advantage of cleartext credentials in memory by dumping the process and extracting lines that have a high probability of containing cleartext passwords. Will attempt to calculate each word's probability by checking hashes in /etc/shadow, hashes in memory, and regex searches.

Requires

• root permissions

Supported/Tested

• Kali 4.3.0 (rolling) x64 (gdm3)
• Ubuntu Desktop 12.04 LTS x64 (Gnome Keyring 3.18.3-0ubuntu2)
• Ubuntu Desktop 16.04 LTS x64 (Gnome Keyring 3.18.3-0ubuntu2)
• XUbuntu Desktop 16.04 x64 (Gnome Keyring 3.18.3-0ubuntu2)
• VSFTPd 3.0.3-8+b1 (Active FTP client connections)
• Apache2 2.4.25-3 (Active/Old HTTP BASIC AUTH Sessions) [Gcore dependency]
• openssh-server 1:7.3p1-1 (Active SSH connections - sudo usage)

Notes

• Password moves in memory - still honing in on 100% effectiveness
• Plan on expanding support and other credential locations
• Working on expanding to non-desktop environments
• Known bug - sometimes gcore hangs the script, this is a problem with gcore
• Open to pull requests and community research
• LDAP research (nscld winbind etc) planned for future

Contact

• Twitter: @huntergregal
• Website: huntergregal.com
• Github: huntergregal

Licence

CC BY 4.0 licence - https://creativecommons.org/licenses/by/4.0/

Special Thanks

• the-useless-one for remove Gcore as a dependency, cleaning up tabs, and adding output option
• gentilkiki for Mimikatz, the inspiration and the twitter shoutout
• pugilist for cleaning up PID extraction and testing
• ianmiell for cleaning up some of my messy code
• w0rm for identifying printf error when special chars are involved
• benichmt1 for identifying multiple authenticate users issue
• ChaitanyaHaritash for identifying special char edge case issues