Detection rules › Sigma
Suspicious Splwow64 Without Params
Detects suspicious Splwow64.exe process without any command line parameters
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Stealth |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
| Security-Auditing | Event ID 4688: A new process has been created. |
Rule body
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
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith: '\splwow64.exe'
CommandLine|endswith: 'splwow64.exe'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | ends_with |
| field:"CommandLine" kind:ends_with value:"splwow64.exe" |
Image | ends_with |
| field:"Image" kind:ends_with value:"\splwow64.exe" |