Emerging Threatcriticaltest

Turla Group Named Pipes

Detects a named pipe used by Turla group samples

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

Launch
Markus NeisCreated Mon Nov 06Updated Sat Nov 27739915e4-1e70-4778-8b8a-17db02f66db12017
Emerging Threat
Active Threat

Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.

Log Source
WindowsNamed Pipe Created
ProductWindows← raw: windows
CategoryNamed Pipe Created← raw: pipe_created

Definition

Note that you have to configure logging for Named Pipe Events in Sysmon config (Event ID 17 and Event ID 18). The basic configuration is in popular sysmon configuration (https://github.com/SwiftOnSecurity/sysmon-config), but it is worth verifying. You can also use other repo, e.g. https://github.com/Neo23x0/sysmon-config, https://github.com/olafhartong/sysmon-modular. How to test detection? You can check powershell script from this site https://svch0st.medium.com/guide-to-named-pipes-and-hunting-for-cobalt-strike-pipes-dc46b2c5f575

Detection Logic
Detection Logic1 selector
detection:
    selection:
        PipeName:
            - '\atctl'    # https://www.virustotal.com/#/file/a4ddb2664a6c87a1d3c5da5a5a32a5df9a0b0c8f2e951811bd1ec1d44d42ccf1/detection
            - '\comnap'   # https://www.gdatasoftware.com/blog/2015/01/23926-analysis-of-project-cobra
            - '\iehelper' # ruag apt case
            - '\sdlrpc'   # project cobra https://www.gdatasoftware.com/blog/2015/01/23926-analysis-of-project-cobra
            - '\userpipe' # ruag apt case
            # - '\rpc' # may cause too many false positives : http://kb.palisade.com/index.php?pg=kb.page&id=483
    condition: selection
False Positives
Unlikely

False positives are unlikely for most environments. High confidence detection.

References
1
Resolving title…
Internal Research
MITRE ATT&CK

Other

detection.emerging-threats
Rule Metadata
Rule ID
739915e4-1e70-4778-8b8a-17db02f66db1
Status
test
Level
critical
Type
Emerging Threat
Created
Mon Nov 06
Modified
Sat Nov 27
Path
rules-emerging-threats/2017/TA/Turla/pipe_created_apt_turla_named_pipes.yml
Raw Tags
attack.g0010attack.executionattack.t1106detection.emerging-threats
View on GitHub