1200KM / sigma-rule
Suspicious Splwow64 Without Params — Sigma Rule
Sigma rule 1f1a8509-2cbb-44f5-8751-8e1571518ce2. Suspicious Splwow64 Without Params — Sigma Rule. Detects suspicious Splwow64.exe process without any command line parameters
Rule metadata and linked tags
Author: Florian Roth (Nextron Systems). Source status: test; severity: high. Source dates: 2021-08-23 / 2022-12-25.
{
"category": "process_creation",
"product": "windows"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: 4280fe37cfbe4469bf7f29fa7a4414be1ae615943f00bc9291737eadb155b137
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: Suspicious Splwow64 Without Params
id: 1f1a8509-2cbb-44f5-8751-8e1571518ce2
status: test
description: Detects suspicious Splwow64.exe process without any command line parameters
references:
- https://twitter.com/sbousseaden/status/1429401053229891590?s=12
author: Florian Roth (Nextron Systems)
date: 2021-08-23
modified: 2022-12-25
tags:
- attack.stealth
- attack.t1202
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith: '\splwow64.exe'
CommandLine|endswith: 'splwow64.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.