Question

A SOC analyst is reviewing Windows System logs on a file server that EDR flagged for unusual behavior. The analyst finds an Event ID 7045 recorded at 02:14 AM showing a new service named 'WinDefragSvc' with an image path of 'C:\Users\Public\svc.exe' and a start type of 'demand start'. No corresponding change ticket exists, and the binary is unsigned. Which conclusion is best supported by this evidence?

Accepted Answer

An attacker likely installed a malicious service to establish persistence on the host

Answer

A legitimate disk defragmentation service was installed by a scheduled Windows maintenance task

Answer

The event indicates a successful account lockout caused by repeated failed logons

Answer

The log shows normal service startup during a routine patch deployment window