Boot or Logon Autostart Execution: Print Processors

Adversaries may abuse print processors to run malicious DLLs during system boot for persistence and/or privilege escalation.

Loads dropped DLL

Adds Run key to start application

Enumerates connected drives

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

Legitimate hosting services abused for malware hosting/C2

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

Modifies termsrv.dll

Commonly used to allow simultaneous RDP sessions.