Detection rules › Sigma
Renamed Remote Utilities RAT (RURAT) Execution
Detects execution of renamed Remote Utilities (RURAT) via Product PE header field
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Stealth | No specific technique |
| Discovery | No specific technique |
| Collection | No specific technique |
| Command & Control | No specific technique |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
Rule body
title: Renamed Remote Utilities RAT (RURAT) Execution
id: 9ef27c24-4903-4192-881a-3adde7ff92a5
status: test
description: Detects execution of renamed Remote Utilities (RURAT) via Product PE header field
references:
- https://redcanary.com/blog/misbehaving-rats/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-09-19
modified: 2023-02-03
tags:
- attack.collection
- attack.command-and-control
- attack.discovery
- attack.stealth
- attack.s0592
logsource:
category: process_creation
product: windows
detection:
selection:
Product: 'Remote Utilities'
filter:
Image|endswith:
- '\rutserv.exe'
- '\rfusclient.exe'
condition: selection and not filter
falsepositives:
- Unknown
level: medium
Stages and Predicates
Stage 0: condition
selection and not filterStage 1: selection
selection:
Product: 'Remote Utilities'
Stage 2: not filter
filter:
Image|endswith:
- '\rutserv.exe'
- '\rfusclient.exe'
Exclusions
The rule actively suppresses these predicates.
| Field | Kind | Excluded values | Search |
|---|---|---|---|
Image | ends_with | \rfusclient.exe | excludes:Image field:"Image" value:"\rfusclient.exe" |
Image | ends_with | \rutserv.exe | excludes:Image field:"Image" value:"\rutserv.exe" |
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Product | eq |
| field:"Product" kind:eq value:"Remote Utilities" |