Remote Access Tool - ScreenConnect Execution

calendar Mar 5, 2023 · attack.command_and_control attack.t1219  ·
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An adversary may use legitimate desktop support and remote access software, such as Team Viewer, Go2Assist, LogMein, AmmyyAdmin, etc, to establish an interactive command and control channel to target systems within networks. These services are commonly used as legitimate technical support software, and may be allowed by application control within a target environment. Remote access tools like VNC, Ammyy, and Teamviewer are used frequently when compared with other legitimate software commonly used by adversaries. (Citation: Symantec Living off the Land)

Sigma rule (View on GitHub)

 1title: Remote Access Tool - ScreenConnect Execution
 2id: 57bff678-25d1-4d6c-8211-8ca106d12053
 3status: test
 4description: |
 5    An adversary may use legitimate desktop support and remote access software, such as Team Viewer, Go2Assist, LogMein, AmmyyAdmin, etc, to establish an interactive command and control channel to target systems within networks.
 6    These services are commonly used as legitimate technical support software, and may be allowed by application control within a target environment.
 7    Remote access tools like VNC, Ammyy, and Teamviewer are used frequently when compared with other legitimate software commonly used by adversaries. (Citation: Symantec Living off the Land)    
 8references:
 9    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1219/T1219.md#atomic-test-5---screenconnect-application-download-and-install-on-windows
10author: frack113
11date: 2022/02/13
12modified: 2023/03/05
13tags:
14    - attack.command_and_control
15    - attack.t1219
16logsource:
17    category: process_creation
18    product: windows
19detection:
20    selection:
21        - Description: 'ScreenConnect Service'
22        - Product: 'ScreenConnect'
23        - Company: 'ScreenConnect Software'
24    condition: selection
25falsepositives:
26    - Legitimate usage of the tool
27level: medium

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