sigmamediumHunting

Remote Access Tool - RURAT Execution From Unusual Location

Detects execution of Remote Utilities RAT (RURAT) from an unusual location (outside of 'C:\Program Files')

Detection Query

selection:
  - Image|endswith:
      - \rutserv.exe
      - \rfusclient.exe
  - Product: Remote Utilities
filter:
  Image|startswith:
    - C:\Program Files\Remote Utilities
    - C:\Program Files (x86)\Remote Utilities
condition: selection and not filter

Author

Nasreddine Bencherchali (Nextron Systems)

Created

2022-09-19

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://redcanary.com/blog/misbehaving-rats/

Tags

attack.defense-evasion

Raw Content

title: Remote Access Tool - RURAT Execution From Unusual Location
id: e01fa958-6893-41d4-ae03-182477c5e77d
status: test
description: Detects execution of Remote Utilities RAT (RURAT) from an unusual location (outside of 'C:\Program Files')
references:
    - https://redcanary.com/blog/misbehaving-rats/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-09-19
modified: 2023-03-05
tags:
    - attack.defense-evasion
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith:
              - '\rutserv.exe'
              - '\rfusclient.exe'
        - Product: 'Remote Utilities'
    filter:
        Image|startswith:
            - 'C:\Program Files\Remote Utilities'
            - 'C:\Program Files (x86)\Remote Utilities'
    condition: selection and not filter
falsepositives:
    - Unknown
level: medium