Successful Overpass the Hash Attempt — Sigma Rule

Rule metadata and linked tags

Author: Roberto Rodriguez (source), Dominik Schaudel (rule). Source status: test; severity: high. Source dates: 2018-02-12 / 2021-11-27.

{
  "product": "windows",
  "service": "security"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 2368ea5cb7b418337f984ed0a6045a01b3e418d65ccb1568629b8a061ce1632c

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Successful Overpass the Hash Attempt
id: 192a0330-c20b-4356-90b6-7b7049ae0b87
status: test
description: Detects successful logon with logon type 9 (NewCredentials) which matches the Overpass the Hash behavior of e.g Mimikatz's sekurlsa::pth module.
references:
    - https://web.archive.org/web/20220419045003/https://cyberwardog.blogspot.com/2017/04/chronicles-of-threat-hunter-hunting-for.html
author: Roberto Rodriguez (source), Dominik Schaudel (rule)
date: 2018-02-12
modified: 2021-11-27
tags:
    - attack.lateral-movement
    - attack.s0002
    - attack.t1550.002
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 4624
        LogonType: 9
        LogonProcessName: seclogo
        AuthenticationPackageName: Negotiate
    condition: selection
falsepositives:
    - Runas command-line tool using /netonly parameter
level: high

Original YAML and metadata in JSON

False positives

• Runas command-line tool using /netonly parameter

Source references

• https://web.archive.org/web/20220419045003/https://cyberwardog.blogspot.com/2017/04/chronicles-of-threat-hunter-hunting-for.html