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sigmamediumHunting

Remote Access Tool - NetSupport Execution From Unusual Location

Detects execution of client32.exe (NetSupport RAT) from an unusual location (outside of 'C:\Program Files')

Detection Query

selection:
  - Image|endswith: \client32.exe
  - Product|contains: NetSupport Remote Control
  - OriginalFileName|contains: client32.exe
  - Hashes|contains: IMPHASH=a9d50692e95b79723f3e76fcf70d023e
filter:
  Image|startswith:
    - C:\Program Files\
    - C:\Program Files (x86)\
condition: selection and not filter

Author

Nasreddine Bencherchali (Nextron Systems)

Created

2022-09-19

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Tags

attack.defense-evasion
Raw Content
title: Remote Access Tool - NetSupport Execution From Unusual Location
id: 37e8d358-6408-4853-82f4-98333fca7014
status: test
description: Detects execution of client32.exe (NetSupport RAT) 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: 2024-11-23
tags:
    - attack.defense-evasion
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith: '\client32.exe'
        - Product|contains: 'NetSupport Remote Control'
        - OriginalFileName|contains: 'client32.exe'
        - Hashes|contains: IMPHASH=a9d50692e95b79723f3e76fcf70d023e
    filter:
        Image|startswith:
            - 'C:\Program Files\'
            - 'C:\Program Files (x86)\'
    condition: selection and not filter
falsepositives:
    - Unknown
level: medium