A security analyst is performing a forensic analysis on a machine that was the subject of some historic SIEM alerts. The analyst noticed some network connections utilizing SSL on non-common ports, copies of svchost.exe and cmd.exe in %TEMP% folder, and RDP files that had connected to external IPs.
Which of the following threats has the security analyst uncovered?
A . DDoS
B . APT
C . Ransomware
D . Software vulnerability
Answer: B