File and Directory Permissions Modification

Adversaries may modify file or directory permissions to evade defenses.

Executes dropped EXE

Renames itself

Checks hardware identifiers (DMI)

Checks DMI information which indicate if the system is a virtual machine.

Creates/modifies Cron job

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

Enumerates running processes

Discovers information about currently running processes on the system

Modifies rc script

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

Reads MAC address of network interface

Fetches the MAC address of active network interfaces. May be used to detect known values for hypervisors.

Reads network interface configuration

Fetches information about one or more active network interfaces.

UPX packed file

Detects executables packed with UPX/modified UPX open source packer.