File and Directory Permissions Modification

Adversaries may modify file or directory permissions to evade defenses.

Deletes itself

Executes dropped EXE

Modifies Watchdog functionality

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

Traces itself

Traces itself to prevent debugging attempts

Enumerates active TCP sockets

Gets active TCP sockets from /proc virtual filesystem.