Emerging Threathighexperimental
File Creation Related To RAT Clients
File .conf created related to VenomRAT, AsyncRAT and Lummac samples observed in the wild.
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
WindowsFile Event
ProductWindows← raw: windows
CategoryFile Event← raw: file_event
Events for file system activity including creation, modification, and deletion.
Detection Logic
Detection Logic2 selectors
detection:
# VT Query: behaviour_files:"\\AppData\\Roaming\\DataLogs\\DataLogs.conf"
# VT Query: behaviour_files:"DataLogs.conf" or behaviour_files:"hvnc.conf" or behaviour_files:"dcrat.conf"
selection_required:
TargetFilename|contains: '\AppData\Roaming\'
selection_variants:
TargetFilename|contains:
- '\mydata\'
- '\datalogs\'
- '\hvnc\'
- '\dcrat\'
TargetFilename|endswith:
- '\datalogs.conf'
- '\hvnc.conf'
- '\dcrat.conf'
condition: all of selection_*False Positives
Legitimate software creating a file with the same name
MITRE ATT&CK
Tactics
Other
detection.emerging-threats
Rule Metadata
Rule ID
2f3039c8-e8fe-43a9-b5cf-dcd424a2522d
Status
experimental
Level
high
Type
Emerging Threat
Created
Thu Dec 19
Author
Path
rules-emerging-threats/2024/Malware/Generic/file_event_win_malware_generic_creation_configuration_rats.yml
Raw Tags
attack.executiondetection.emerging-threats