Anomalous Unix Password Change Activity

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About the rule

Rule Type

Anomaly

Rule Description

Flags irregular password change behavior in Unix environments.

Severity

Critical

Rule Requirement

Criteria

Action1: actionname = "unix_successful_user_account_password_change" | isanomalous(Log source at an unusual Time) | isanomalous(Log source with abnormal Count) select Action1.HOSTNAME,Action1.TARGETUSER,Action1.USERID,Action1.MESSAGE

Detection

Execution Mode

Intelligent

Log Sources

Miscellaneous