Emerging Threatcriticaltest
COLDSTEEL RAT Service Persistence Execution
Detects the creation of an "svchost" process with specific command line flags, that were seen present and used by ColdSteel RAT
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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
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:
Image|endswith: '\svchost.exe'
CommandLine|endswith:
- ' -k msupdate'
- ' -k msupdate2'
- ' -k alg'
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
9f9cd389-cea0-4142-bf1a-a3fd424abedd
Status
test
Level
critical
Type
Emerging Threat
Created
Sun Apr 30
Path
rules-emerging-threats/2023/Malware/COLDSTEEL/proc_creation_win_malware_coldsteel_service_persistence.yml
Raw Tags
attack.persistenceattack.defense-evasiondetection.emerging-threats