1200KM / sigma-rule
ScreenConnect Temporary Installation Artefact — Sigma Rule
Sigma rule fec96f39-988b-4586-b746-b93d59fd1922. ScreenConnect Temporary Installation Artefact — Sigma Rule. 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)
Rule metadata and linked tags
Author: frack113. Source status: test; severity: medium. Source dates: 2022-02-13 / not supplied.
{
"category": "file_event",
"product": "windows"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: 9a2aad91cf213c3fb42296354c25d95ffc7e9c9dac04e6c566d180e1fc13f0b5
Detection logic
Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.
title: ScreenConnect Temporary Installation Artefact
id: fec96f39-988b-4586-b746-b93d59fd1922
status: test
description: |
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)
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1219/T1219.md#atomic-test-5---screenconnect-application-download-and-install-on-windows
author: frack113
date: 2022-02-13
tags:
- attack.command-and-control
- attack.t1219.002
logsource:
category: file_event
product: windows
detection:
selection:
TargetFilename|contains: '\Bin\ScreenConnect.' # pattern to dll and jar file
condition: selection
falsepositives:
- Legitimate use
level: medium
False positives
- Legitimate use
Source references
Connected ecosystem references
Exact source-tagged techniques
Telemetry review
Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.