: Analysts use these files to study how the malware bypasses the Windows Driver Signature Enforcement.

If a system was infected by the contents of an mb5.zip deployment, a user might notice:

: The additional overhead of the rootkit's pre-boot execution can noticeably delay the startup process.

: The malware overwrites the Master Boot Record. Because the MBR is the first sector of the hard drive accessed during startup, the rootkit gains control of the CPU before the Windows kernel or antivirus software can initialize.