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The 60ms Window: How Event 5156 Solves the ADWS Attribution Problem

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The 60ms Window: How Event 5156 Solves the ADWS Attribution Problem

A technique leverages Windows Event 5156 within a 60 to 80 millisecond timing window to correlate Active Directory Web Service (ADWS) queries logged in Event 1644 with their actual source IP addresses, avoiding the limitation of localhost obfuscation. This method uses data already present in Security Information and Event Management (SIEM) systems to enable proper attribution of ADWS activity.

Why it matters: Security operations and incident response teams need accurate attribution of directory service queries to detect reconnaissance and lateral movement, and this approach provides a practical way to identify true sources of ADWS activity using existing Windows event logs.

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