Suspicious Failed Password Change Activity in Windows
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About the rule
Rule Type
Anomaly
Rule Description
Monitors repeated or suspicious failed password change attempts.
Severity
Critical
Rule Requirement
Criteria
Action1:
actionname = "Failed user account password change"
| isanomalous(User at an unusual Time)
| isanomalous(User with abnormal Count)
| isanomalous(Log source at an unusual Time)
| isanomalous(Log source with abnormal Count)
| isanomalous(Log source with unusual Username)
| isanomalous(User with unusual Log source)
select Action1.HOSTNAME,Action1.MESSAGE,Action1.DOMAIN,Action1.TARGETDOMAIN,Action1.TARGETUSER,Action1.USERNAME,Action1.TARGETMACHINE,Action1.MEMBERGROUPSID,Action1.SECURITYID
Detection
Execution Mode
Intelligent
Log Sources
Windows
