Detection rules › Sigma

Successful Overpass the Hash Attempt

Status
test
Severity
high
Log source
product windows, service security
Author
Roberto Rodriguez (source), Dominik Schaudel (rule)
Source
github.com/SigmaHQ/sigma

Detects successful logon with logon type 9 (NewCredentials) which matches the Overpass the Hash behavior of e.g Mimikatz's sekurlsa::pth module.

MITRE ATT&CK coverage

Event coverage

Rule body yaml

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

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    EventID: 4624
    LogonType: 9
    LogonProcessName: seclogo
    AuthenticationPackageName: Negotiate

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
AuthenticationPackageNameeq
  • Negotiate corpus 4 (sigma 4)
LogonProcessNameeq
  • seclogo corpus 5 (sigma 4, elastic 1)
LogonTypeeq
  • 9 corpus 8 (sigma 6, elastic 2)