Sign in Get started

Back to results

MediumSplunk security content Patrick Bareiss +1

Detect Credential Dumping through LSASS access

The following analytic detects attempts to read LSASS memory, indicative of credential dumping. It leverages Sysmon EventCode 10 and checks for "PROCESS_VM_READ" with query information access on lsass.exe.

Detection logic

Detection requirements

Platform: Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source category: sysmon_eventid_10

Known benign triggers

The activity may be legitimate. Other tools can access lsass for legitimate reasons, and it's possible this event could be generated in those cases. In these cases, false positives should be fairly obvious and you may need to tweak the search to eliminate noise.

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
attack.mitre.org/techniques/T1003/001/	Taxonomy	4from 2 sources
github.com/redcanaryco/atomic-red-team/blob/388942adbd9641f4dfdcf079d7efe9a75ec0ac43/atomics/T1003.001/T1003.001.yaml#L5	Detection test	8
www.microsoft.com/en-us/security/blog/2022/10/05/detecting-and-preventing-lsass-credential-dumping-attacks/	Threat report	Only this detection cites it

Detections can measure how the public catalogue is used — which detections people look for, and which pages bring them here. It sets a cookie that recognises this browser for 180 days. It is never linked to an account and never follows you to other sites. Privacy notice