Threat Huntmediumtest
Headless Process Launched Via Conhost.EXE
Detects the launch of a child process via "conhost.exe" with the "--headless" flag. The "--headless" flag hides the windows from the user upon execution.
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Launch
Nasreddine Bencherchali (Nextron Systems)Created Tue Jul 2300ca75ab-d5ce-43be-b86c-55ff39c6abfcwindows
Hunting Hypothesis
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:
ParentImage|endswith: '\conhost.exe'
ParentCommandLine|contains: '--headless'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Sub-techniques
Other
detection.threat-hunting
Rule Metadata
Rule ID
00ca75ab-d5ce-43be-b86c-55ff39c6abfc
Status
test
Level
medium
Type
Threat Hunt
Created
Tue Jul 23
Path
rules-threat-hunting/windows/process_creation/proc_creation_win_conhost_headless_execution.yml
Raw Tags
attack.defense-evasionattack.executionattack.t1059.001attack.t1059.003detection.threat-hunting