ScreenConnect Temporary Installation Artefact
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: ScreenConnect Temporary Installation Artefact
2id: fec96f39-988b-4586-b746-b93d59fd1922
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
12tags:
13 - attack.command-and-control
14 - attack.t1219
15logsource:
16 category: file_event
17 product: windows
18detection:
19 selection:
20 TargetFilename|contains: '\Bin\ScreenConnect.' # pattern to dll and jar file
21 condition: selection
22falsepositives:
23 - Legitimate use
24level: medium
References
Related rules
- Antivirus Exploitation Framework Detection
- Anydesk Temporary Artefact
- DNS Query To AzureWebsites.NET By Non-Browser Process
- GoToAssist Temporary Installation Artefact
- HackTool - Inveigh Execution Artefacts