Emerging Threatcriticaltest
Potential SystemNightmare Exploitation Attempt
Detects an exploitation attempt of SystemNightmare in order to obtain a shell as LOCAL_SYSTEM
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Launch
Florian Roth (Nextron Systems)Created Wed Aug 11Updated Sat Feb 04c01f7bd6-0c1d-47aa-9c61-187b91273a162021
Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic1 selector
detection:
selection:
CommandLine|contains:
- 'printnightmare.gentilkiwi.com'
- ' /user:gentilguest '
- 'Kiwi Legit Printer'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Other
detection.emerging-threats
Rule Metadata
Rule ID
c01f7bd6-0c1d-47aa-9c61-187b91273a16
Status
test
Level
critical
Type
Emerging Threat
Created
Wed Aug 11
Modified
Sat Feb 04
Path
rules-emerging-threats/2021/Exploits/SystemNightmare-Exploit/proc_creation_win_exploit_other_systemnightmare.yml
Raw Tags
attack.privilege-escalationattack.t1068detection.emerging-threats