Detection rules › Sigma
Potential SystemNightmare Exploitation Attempt
Detects an exploitation attempt of SystemNightmare in order to obtain a shell as LOCAL_SYSTEM
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Privilege Escalation | T1068 Exploitation for Privilege Escalation |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 1 | Process creation |
| Security-Auditing | Event ID 4688 | A new process has been created. |
Rule body yaml
title: Potential SystemNightmare Exploitation Attempt
id: c01f7bd6-0c1d-47aa-9c61-187b91273a16
status: test
description: Detects an exploitation attempt of SystemNightmare in order to obtain a shell as LOCAL_SYSTEM
references:
- https://github.com/GossiTheDog/SystemNightmare
author: Florian Roth (Nextron Systems)
date: 2021-08-11
modified: 2023-02-04
tags:
- attack.privilege-escalation
- attack.t1068
- detection.emerging-threats
logsource:
category: process_creation
product: windows
detection:
selection:
CommandLine|contains:
- 'printnightmare.gentilkiwi.com'
- ' /user:gentilguest '
- 'Kiwi Legit Printer'
condition: selection
falsepositives:
- Unknown
level: critical
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
CommandLine|contains:
- 'printnightmare.gentilkiwi.com'
- ' /user:gentilguest '
- 'Kiwi Legit Printer'
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.
| Field | Kind | Values |
|---|---|---|
CommandLine | match |
|