File and Directory Permissions Modification

Adversaries may modify file or directory permissions to evade defenses.

Deletes Audit logs

Deletes logs related to the Linux Audit framework.

OS Credential Dumping

Adversaries may attempt to dump credentials to use it in password cracking.

Adds a user to the system

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.

Deletes log files

Deletes log files on the system.

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 rc script

Adding/modifying system rc scripts is a common persistence mechanism.

Modifies Bash startup script