Renamed NetSupport RAT Execution

Detects the execution of a renamed "client32.exe" (NetSupport RAT) via Imphash, Product and OriginalFileName strings

Sigma rule (View on GitHub)

 1title: Renamed NetSupport RAT Execution
 2id: 0afbd410-de03-4078-8491-f132303cb67d
 3status: test
 4description: Detects the execution of a renamed "client32.exe" (NetSupport RAT) via Imphash, Product and OriginalFileName strings
 5references:
 6    - https://redcanary.com/blog/misbehaving-rats/
 7author: Nasreddine Bencherchali (Nextron Systems)
 8date: 2022/09/19
 9modified: 2023/02/04
10tags:
11    - attack.defense_evasion
12logsource:
13    category: process_creation
14    product: windows
15detection:
16    selection:
17        - Product|contains: 'NetSupport Remote Control'
18        - OriginalFileName|contains: 'client32.exe'
19        - Imphash: a9d50692e95b79723f3e76fcf70d023e
20        - Hashes|contains: IMPHASH=A9D50692E95B79723F3E76FCF70D023E
21    filter:
22        Image|endswith: '\client32.exe'
23    condition: selection and not filter
24falsepositives:
25    - Unknown
26level: high

References

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