1200KM / sigma-rule
Potential LethalHTA Technique Execution — Sigma Rule
Sigma rule ed5d72a6-f8f4-479d-ba79-02f6a80d7471. Potential LethalHTA Technique Execution — Sigma Rule. Detects potential LethalHTA technique where the "mshta.exe" is spawned by an "svchost.exe" process
Rule metadata and linked tags
Author: Markus Neis. Source status: test; severity: high. Source dates: 2018-06-07 / 2023-02-07.
{
"category": "process_creation",
"product": "windows"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: ae3e9490298fddd92b090c7b1c5fdc7f4867a53f50168271606159eaa9b9fa04
Detection logic
Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.
title: Potential LethalHTA Technique Execution
id: ed5d72a6-f8f4-479d-ba79-02f6a80d7471
status: test
description: Detects potential LethalHTA technique where the "mshta.exe" is spawned by an "svchost.exe" process
references:
- https://codewhitesec.blogspot.com/2018/07/lethalhta.html
author: Markus Neis
date: 2018-06-07
modified: 2023-02-07
tags:
- attack.stealth
- attack.t1218.005
logsource:
category: process_creation
product: windows
detection:
selection:
ParentImage|endswith: '\svchost.exe'
Image|endswith: '\mshta.exe'
condition: selection
falsepositives:
- Unknown
level: high
False positives
- Unknown
Source references
Connected ecosystem references
Exact source-tagged techniques
Telemetry review
Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.