Executes dropped EXE

Loads dropped DLL

System Binary Proxy Execution: wuauclt

Abuse Wuauclt to proxy execution of malicious code.

Enumerates connected drives

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

Writes to the Master Boot Record (MBR)

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

Drops file in System32 directory