SigmaHQ/rules/windows/builtin/win_susp_samr_pwset.yml
2019-11-12 23:12:27 +01:00

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YAML

title: Possible Remote Password Change Through SAMR
id: 7818b381-5eb1-4641-bea5-ef9e4cfb5951
description: Detects a possible remote NTLM hash change through SAMR API SamiChangePasswordUser() or SamSetInformationUser(). "Audit User Account Management" in "Advanced
Audit Policy Configuration" has to be enabled in your local security policy / GPO to see this events.
author: Dimitrios Slamaris
tags:
- attack.credential_access
- attack.t1212
logsource:
product: windows
service: security
detection:
samrpipe:
EventID: 5145
RelativeTargetName: samr
passwordchanged:
EventID: 4738
passwordchanged_filter:
PasswordLastSet: null
timeframe: 15s
condition: ( passwordchanged and not passwordchanged_filter ) | near samrpipe
level: medium