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Newest: 2.0.2
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Active Rule
Potentially Suspicious Child Processes Spawned by ConHost
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potentially Suspicious Child Processes Spawned by ConHost
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
title: Potentially Suspicious Child Processes Spawned by ConHost
id: dfa03a09-8b92-4d83-8e74-f72839b1c407
related:
- id: 7dc2dedd-7603-461a-bc13-15803d132355
type: similar
status: experimental
description: Detects suspicious child processes related to Windows Shell utilities spawned by `conhost.exe`, which could indicate malicious activity using trusted system components.
references:
- https://tria.ge/241015-l98snsyeje/behavioral2
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-02-05
tags:
- attack.t1202
- attack.defense-evasion
- attack.t1218
logsource:
category: process_creation
product: windows
detection:
selection_parent:
ParentImage|endswith: '\conhost.exe'
selection_child:
- Image|endswith:
- '\cmd.exe' # Windows Command Prompt
- '\cscript.exe' # Windows Script Host (used for scripting exploits)
- '\mshta.exe' # MSHTA (HTML Application Host, often abused)
- '\powershell_ise.exe' # PowerShell ISE
- '\powershell.exe' # Windows PowerShell
- '\pwsh.exe' # PowerShell Core
- '\regsvr32.exe' # Windows Registry Server (commonly used for exploits)
- '\wscript.exe' # Windows Script Host (for executing scripts)
- OriginalFileName:
- 'cmd.exe'
- 'cscript.exe'
- 'mshta.exe'
- 'powershell_ise.exe'
- 'powershell.exe'
- 'pwsh.dll'
- 'regsvr32.exe'
- 'wscript.exe'
condition: all of selection_*
falsepositives:
- Legitimate administrative tasks using `conhost.exe` to spawn child processes such as `cmd.exe`, `powershell.exe`, or `regsvr32.exe`.
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/process_creation/proc_creation_win_conhost_susp_winshell_child_process.yml