Impair Defenses: Safe Mode Boot

Reads user/profile data of web browsers

Infostealers often target stored browser data, which can include saved credentials etc.

Adds Run key to start application

Checks for any installed AV software in registry

Downloads MZ/PE file

Enumerates connected drives

Attempts to read the root path of hard drives other than the default C: drive.

Event Triggered Execution: Image File Execution Options Injection

Writes to the Master Boot Record (MBR)

Bootkits write to the MBR to gain persistence at a level below the operating system.

Checks computer location settings

Looks up country code configured in the registry, likely geofence.

Drops file in System32 directory

Event Triggered Execution: Component Object Model Hijacking

Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

YARA rule for Mozi IoT Botnet

Mozi IoT Botnet detection.