Detection rules › Sigma

Suspicious Kerberos password account reset to issue potential Golden ticket

Status
experimental
Severity
medium
Log source
product windows, service security
Author
mdecrevoisier
Source
github.com/mdecrevoisier/SIGMA-detection-rules

Detects scenarios where a suspicious password reset of the Krbtgt account is performed by attacker to issue a potential Golden ticket.

MITRE ATT&CK coverage

Event coverage

Rule body yaml

title: Suspicious Kerberos password account reset to issue potential Golden ticket
description: Detects scenarios where a suspicious password reset of the Krbtgt account is performed by attacker to issue a potential Golden ticket.
references:
- https://cert.europa.eu/static/WhitePapers/CERT-EU-SWP_14_07_PassTheGolden_Ticket_v1_1.pdf
- https://adsecurity.org/?p=483
tags:
- attack.credential_access
- attack.t1558.001
author: mdecrevoisier
status: experimental
logsource:
  product: windows
  service: security
detection:
  selection:
    EventID: 4724
    TargetSid|endswith: '-502' # Krbtgt account SID
  condition: selection
falsepositives:
- Administrators following best practices and reseting the Krbtgt password 1 or 2 times a year
level: medium

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
  EventID: 4724
  TargetSid|endswith: '-502'

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
TargetSidends_with
  • -502