S0377Ebury

[Ebury](https://attack.mitre.org/software/S0377) is an SSH backdoor targeting Linux operating systems. Attackers require root-level access, which allows them to replace SSH binaries (ssh, sshd, ssh-add, etc) or modify a shared library used by OpenSSH (libkeyutils).(Citation: ESET Ebury Feb 2014)(Citation: BleepingComputer Ebury March 2017)(Citation: ESET Ebury Oct 2017)