Emerging Threathightest
Potential COLDSTEEL Persistence Service DLL Load
Detects a suspicious DLL load by an "svchost" process based on location and name that might be related to ColdSteel RAT. This DLL location and name has been seen used by ColdSteel as the service DLL for its persistence mechanism
Convert In Phoenix Studio
Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.
Launch
Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
Log Source
WindowsImage Load (DLL)
ProductWindows← raw: windows
CategoryImage Load (DLL)← raw: image_load
Detection Logic
Detection Logic1 selector
detection:
selection:
Image|endswith: '\svchost.exe'
ImageLoaded|endswith: '\AppData\Roaming\newdev.dll'
condition: selectionFalse Positives
Unlikely
False positives are unlikely for most environments. High confidence detection.
References
MITRE ATT&CK
Other
detection.emerging-threats
Rule Metadata
Rule ID
1d7a57da-02e0-4f7f-92b1-c7b486ccfed5
Status
test
Level
high
Type
Emerging Threat
Created
Tue May 02
Path
rules-emerging-threats/2023/Malware/COLDSTEEL/image_load_malware_coldsteel_persistence_service_dll.yml
Raw Tags
attack.persistenceattack.defense-evasiondetection.emerging-threats