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GCIH, GCFE | Sr. Security Consultant | Digital Forensics, Incident Response & SOC | @CuratedIntel Contributing DFIR Member
Jun 10, 2022 4 tweets 2 min read
Ever wondered what happens when #MicrosoftDefender quarantines a PUP, but then you go in the notification, and select to "Allow" the application in the future? Well, a Registry value with the name of ThreatId (detected threat) is set in the Registry with a Data of 6 for Ignore. It seems that this Regkey is regularly cleaned however, since the application gets flagged every few days and I need to restart the process.

Registry key for copy/paste:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction