File and Directory Permissions Modification

Adversaries may modify file or directory permissions to evade defenses.

Deletes itself

Executes dropped EXE

Loads a kernel module

Loads a Linux kernel module, potentially to achieve persistence

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 active TCP sockets

Gets active TCP sockets from /proc virtual filesystem.

Enumerates running processes

Discovers information about currently running processes on the system

Modifies init.d

Adds/modifies system service, likely for persistence.

Reads hardware information

Accesses system info like serial numbers, manufacturer names etc.

Reads list of loaded kernel modules

Reads the list of currently loaded kernel modules, possibly to detect virtual environments.