SigmaHQ/rules/windows/process_creation/win_lethalhta.yml

title: MSHTA Spwaned by SVCHOST
id: ed5d72a6-f8f4-479d-ba79-02f6a80d7471
status: experimental
description: Detects MSHTA.EXE spwaned by SVCHOST as seen in LethalHTA and described in report
references:
    - https://codewhitesec.blogspot.com/2018/07/lethalhta.html
tags:
    - attack.defense_evasion
    - attack.execution
    - attack.t1170
    - attack.t1218.005
author: Markus Neis
date: 2018/06/07
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage: '*\svchost.exe'
        Image: '*\mshta.exe'
    condition: selection
falsepositives:
    - Unknown
level: high
fix: fixed casing and long rule titles 2020-01-30 16:26:09 +00:00			`title: MSHTA Spwaned by SVCHOST`
Added UUIDs to rules 2019-11-12 22:12:27 +00:00			`id: ed5d72a6-f8f4-479d-ba79-02f6a80d7471`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`status: experimental`
fix: fixed casing and long rule titles 2020-01-30 16:26:09 +00:00			`description: Detects MSHTA.EXE spwaned by SVCHOST as seen in LethalHTA and described in report`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`references:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`- https://codewhitesec.blogspot.com/2018/07/lethalhta.html`
atc review 2019-03-06 04:25:12 +00:00			`tags:`
			`- attack.defense_evasion`
			`- attack.execution`
			`- attack.t1170`
Initial round of subtechnique updates 2020-06-16 20:46:08 +00:00			`- attack.t1218.005`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`author: Markus Neis`
			`date: 2018/06/07`
			`logsource:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`category: process_creation`
			`product: windows`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`detection:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`selection:`
			`ParentImage: '*\svchost.exe'`
			`Image: '*\mshta.exe'`
			`condition: selection`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`falsepositives:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`- Unknown`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`level: high`