File and Directory Permissions Modification

Adversaries may modify file or directory permissions to evade defenses.

Deletes system logs

Deletes log file which contains global system messages. Adversaries may delete system logs to minimize their footprint.

Executes dropped EXE

Flushes firewall rules

Flushes/ disables firewall rules inside the Linux kernel.

Loads a kernel module

Loads a Linux kernel module, potentially to achieve persistence

OS Credential Dumping

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

Adds a user to the system

Attempts to change immutable files

Modifies inode attributes on the filesystem to allow changing of immutable files.

Creates/modifies Cron job

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

Deletes log files

Deletes log files on the system.

Disables AppArmor

Disables AppArmor security module.

Disables SELinux

Disables SELinux security module.

Enumerates running processes

Discovers information about currently running processes on the system

Modifies init.d

Adds/modifies system service, likely for persistence.

Modifies rc script

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

Write file to user bin folder

Writes file to system bin folder