DPAPI Backup Keys And Certificate Export Activity IOC
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About the rule
Rule Type
Standard
Rule Description
Detects file names with specific patterns seen generated and used by tools such as Mimikatz and DSInternals related to exported or stolen DPAPI backup keys and certificates.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "File Created or Modified" AND (FILENAME contains "ntds_capi_,ntds_legacy_,ntds_unknown_" OR OBJECTNAME contains "ntds_capi_,ntds_legacy_,ntds_unknown_") AND (FILENAME endswith ".cer,.key,.pfx,.pvk" OR OBJECTNAME endswith ".cer,.key,.pfx,.pvk") select Action1.HOSTNAME,Action1.MESSAGE,Action1.USERNAME,Action1.DOMAIN,Action1.OBJECTNAME,Action1.FILENAME,Action1.PROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Active Directory
Author
Nounou Mbeiri, Nasreddine Bencherchali (Nextron Systems)
