Remote Access Tool - ScreenConnect Server Web Shell Execution

 1title: Remote Access Tool - ScreenConnect Server Web Shell Execution
 2id: b19146a3-25d4-41b4-928b-1e2a92641b1b
 3status: experimental
 4description: Detects potential web shell execution from the ScreenConnect server process.
 5references:
 6    - https://blackpointcyber.com/resources/blog/breaking-through-the-screen/
 7    - https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
 8author: Jason Rathbun (Blackpoint Cyber)
 9date: 2024-02-26
10tags:
11    - attack.initial-access
12    - attack.t1190
13logsource:
14    product: windows
15    category: process_creation
16detection:
17    selection:
18        ParentImage|endswith: '\ScreenConnect.Service.exe'
19        Image|endswith:
20            - '\cmd.exe'
21            - '\csc.exe'
22    condition: selection
23falsepositives:
24    - Unlikely
25level: high

References

• Breaking Through the Screen

  

  Read a blog from our threat research team on the ConnectWise vulnerabilities, exploitation process, and how to detect these tactics.

  
  Read More

• ConnectWise ScreenConnect 23.9.8 security fix

  

  We've received notifications of suspicious activity that our incident response team has investigated.

  
  Read More

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