Creates/modifies Cron job

Cron allows running tasks on a schedule, and is commonly used for malware persistence.

Creates/modifies environment variables

Creating/modifying environment variables is a common persistence mechanism.

Enumerates running processes

Discovers information about currently running processes on the system

Looks up external IP address via web service

Uses a legitimate IP lookup service to find the infected system's external IP.

Modifies systemd

Adds/ modifies systemd service files. Likely to achieve persistence.

Removes the immutable protection flag from a file

Uses chattr to remove the immutable flag from a file, allowing previously write-protected files to be modified or deleted.

Write file to user bin folder

Modifies Bash startup script