A Forensics Analyst Suspects That a Breach Has Occurred

Multiple Choice

A forensics analyst suspects that a breach has occurred. Security logs show the company's OS patch system may be compromised, and it is serving patches that contain a zero-day exploit and backdoor. The analyst extracts an executable file from a packet capture of communication between a client computer and the patch server. Which of the following should the analyst use to confirm this suspicion?

A) File size
B) Digital signature
C) Checksums
D) Anti-malware software
E) Sandboxing