Emerging Threathighexperimental
Forest Blizzard APT - Process Creation Activity
Detects the execution of specific processes and command line combination. These were seen being created by Forest Blizzard as described by MSFT.
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Launch
Nasreddine Bencherchali (Nextron Systems)Created Tue Apr 23Updated Wed Jan 2207db928c-8632-488e-ac7d-3db8474891752024
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 Logic4 selectors
detection:
selection_hashes:
Hashes|contains:
- 'SHA256=6b311c0a977d21e772ac4e99762234da852bbf84293386fbe78622a96c0b052f'
- 'SHA256=c60ead92cd376b689d1b4450f2578b36ea0bf64f3963cfa5546279fa4424c2a5'
selection_schtasks_create:
Image|endswith: '\schtasks.exe'
CommandLine|contains|all:
- 'Create'
- '/RU'
- 'SYSTEM'
- '\Microsoft\Windows\WinSrv'
CommandLine|contains:
- 'servtask.bat'
- 'execute.bat'
- 'doit.bat'
selection_schtasks_delete:
Image|endswith: '\schtasks.exe'
CommandLine|contains|all:
- 'Delete'
- '/F '
- '\Microsoft\Windows\WinSrv'
selection_powershell:
CommandLine|contains|all:
- 'Get-ChildItem'
- '.save'
- 'Compress-Archive -DestinationPath C:\ProgramData\'
condition: 1 of selection_*False 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
07db928c-8632-488e-ac7d-3db847489175
Status
experimental
Level
high
Type
Emerging Threat
Created
Tue Apr 23
Modified
Wed Jan 22
Path
rules-emerging-threats/2024/TA/Forest-Blizzard/proc_creation_win_apt_forest_blizzard_activity.yml
Raw Tags
attack.defense-evasionattack.executiondetection.emerging-threats