Checks BIOS information in registry

BIOS information is often read in order to detect sandboxing environments.

Checks computer location settings

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

Loads dropped DLL

UPX packed file

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

Indicator Removal: File Deletion

Adversaries may delete files left behind by the actions of their intrusion activity.

Installs/modifies Browser Helper Object

BHOs are DLL modules which act as plugins for Internet Explorer.