Modifies Watchdog functionality

Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

Renames itself

Creates/modifies Cron job

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

Enumerates active TCP sockets

Gets active TCP sockets from /proc virtual filesystem.

Enumerates running processes

Discovers information about currently running processes on the system

Modifies systemd

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

Reads process memory

Read the memory of a process through the /proc virtual filesystem. This can be used to steal credentials.