Linux Rabbit

Linux Rabbit is malware that targeted Linux servers and IoT devices in a campaign lasting from August to October 2018. It shares code with another strain of malware known as Rabbot. The goal of the campaign was to install cryptocurrency miners onto the targeted servers and devices.[1]

ID: S0362
Platforms: Linux
Version: 1.1

Techniques Used

Domain ID Name Use
Enterprise T1156 .bash_profile and .bashrc Linux Rabbit maintains persistence on an infected machine through rc.local and .bashrc files.[1]
Enterprise T1110 Brute Force Linux Rabbit brute forces SSH passwords in order to attempt to gain access and install its malware onto the server.[1]
Enterprise T1043 Commonly Used Port Linux Rabbit checks to see if an SSH server is listening on port 22.[1]
Enterprise T1132 Data Encoding Linux Rabbit sends the payload from the C2 server as an encoded URL parameter.[1]
Enterprise T1133 External Remote Services Linux Rabbit attempts to gain access to the server via SSH.[1]
Enterprise T1033 System Owner/User Discovery Linux Rabbit opens a socket on port 22 and if it receives a response it attempts to obtain the machine's hostname and Top-Level Domain.[1]
Enterprise T1078 Valid Accounts Linux Rabbit acquires valid SSH accounts through brute force.[1]