SEC536: Adversarial AI - Penetration Testing AI Systems


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Contact UsKey findings:
Taken together, these six artifacts show that no single data source gives investigators a complete picture of user or attacker activity on a Windows system. Jump Lists, LNK files, and MRU keys reconstruct what a user opened and when, while Prefetch, SRUM, and Event Logs establish whether programs executed, how systems communicated, and what persistence mechanisms were installed. Correlating artifacts across these categories is what turns isolated data points into a defensible timeline, since a bypass or gap in one artifact rarely extends to all six. This playbook functions as a companion quick-reference to SANS FOR500: Windows Forensic Analysis, the course that explores these artifacts in depth and maps to the GIAC Certified Forensic Examiner (GCFE) certification.
Prefetch files provide strong evidence of program execution, recording an application's last eight run times, total run count, and associated DLLs. Investigators use this to confirm whether a specific executable, such as ransomware, ran on a system and when.
Jump List data is stored inside each user profile at C:\Users\<username>\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations, and can be parsed directly or extracted with forensic tools.
SRUM (System Resource Usage Monitor) only retains approximately 30 to 60 days of application execution and network usage history, so investigators should collect SRUM data as quickly as possible after an incident to avoid losing evidence.
RecentDocs tracks the 150 most recent files and folders opened by a user account and is used to populate Recent menus, while OpenSavePidlMRU tracks files opened or saved specifically through Windows common Open/Save dialog boxes. Both only confirm that a file was opened, not how it was used or whether it was modified.
High-value Event IDs include 4624 and 4625 for logon attempts, 4698 for scheduled task creation, and 7045 for service installation. The Security log is typically the most valuable of the three core Windows Event Logs for building attacker timelines.


Kathryn Hedley has led various forensic teams since 2010, spending three years embedded within a cross-organizational team, liaising directly with multiple clients. She is currently a Director and Digital Forensic Specialist for Khyrenz Ltd.
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