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MediumSplunk security contentThreat hunting

Windows Hunting System Account Targeting Lsass

The following analytic identifies processes attempting to access Lsass.exe, which may indicate credential dumping or applications needing credential access. It leverages Sysmon EventCode 10 to detect such activities by analyzing fields like TargetImage, GrantedAccess, and SourceImage. This behavior is significant as unauthorized access to Lsass.exe can lead to credential theft, posing a severe security risk. If confirmed malicious, attackers could gain access to sensitive credentials, potentially leading to privilege escalation and further compromise of the environment.

ATT&CK coverage

Outside the enterprise matrix

T1003.001

Detection requirements

Log source category: sysmon_eventid_10

What the source says

What fires this without an attack behind it

False positives will occur based on GrantedAccess and SourceUser, filter based on source image as needed. Utilize this hunting analytic to tune out false positives in TTP or anomaly analytics.

References

Tagged by the source as

CISA AA23-347ACredential DumpingLokibotScattered Lapsus$ HuntersEndpointendpointSplunk CloudSplunk EnterpriseSplunk Enterprise Securityendpoint

Detection logic

Published to signed-in readers

The query as its source wrote it, its canonical form, and the content hash that pins this exact revision.