Sigma rule: Potential Exploitation Attempt Of Undocumented WindowsServer RCE

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-4950ccd248de, updated 2023-01-21T00:00:00.000Z.

Rule

Title: Potential Exploitation Attempt Of Undocumented WindowsServer RCE
Status: test
Level: high
Author: Florian Roth (Nextron Systems), Nasreddine Bencherchali
Date: 2023-01-21
File: rules-emerging-threats/2023/Exploits/Windows-Server-Unknown-Exploit/proc_creation_win_exploit_other_win_server_undocumented_rce.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential exploitation attempt of undocumented Windows Server Pre Auth Remote Code Execution (RCE)

Log source

product: windows
category: process_creation

Detection

selection:
    ParentImage|endswith: '\svchost.exe'
    Image|endswith: '\svchost.exe'
    ParentCommandLine|contains: '-k DHCPServer'
    CommandLine|contains: '-k DHCPServer'
    User|contains: # Covers many language settings for Network Service. Please expand.
        - 'NETWORK SERVICE'
        - 'NETZWERKDIENST'
        - 'SERVIZIO DI RETE'
        - 'SERVICIO DE RED'
condition: selection

False positives (as the rule lists them)

Unknown

MITRE ATT&CK ids this rule names

T1190

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2023/Exploits/Windows-Server-Unknown-Exploit/proc_creation_win_exploit_other_win_server_undocumented_rce.yml

Sources and licences

SigmaHQ
"Potential Exploitation Attempt Of Undocumented WindowsServer RCE" by Florian Roth (Nextron Systems), Nasreddine Bencherchali (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2023/Exploits/Windows-Server-Unknown-Exploit/proc_creation_win_exploit_other_win_server_undocumented_rce.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License
Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Potential Exploitation Attempt Of Undocumented WindowsServer RCE",
entity page, dataset version ref-4950ccd248de, updated 2023-01-21T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/6d5b8176-d87d-4402-8af4-53aee9db7b5d (accessed 2026-11-03).
Underlying source: SigmaHQ rule 6d5b8176-d87d-4402-8af4-53aee9db7b5d, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.