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Case file

Operation Nightjar

A helpdesk ticket, no alert, and an unfamiliar name in Domain Admins. Work backwards across four hosts to reconstruct how it got there, then decide what the attacker's clean-up on the way out actually destroyed.
Difficulty
intermediate
Estimated time
About 60 minutes
Learning Path
Incident Investigation
Plan
Pro
Telemetry you will work with
Windows · Sysmon
Skills you will use
Alert triage · SIEM search · Log analysis · Investigation scoping · Timeline reconstruction · Evidence and reporting
ATT&CK tactics
Credential Access · Defense Impairment · Discovery · Lateral Movement · Persistence · Privilege Escalation

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