1200KM / sigma-rule
Remote Access Tool - ScreenConnect Execution — Sigma Rule
Sigma rule 57bff678-25d1-4d6c-8211-8ca106d12053. Remote Access Tool - ScreenConnect Execution — 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 / 2023-03-05.
{
"category": "process_creation",
"product": "windows"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: 6a5df176dd01159b8b6bf99d259d1e23896d363372f1f9517617a0e607dcf83f
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: Remote Access Tool - ScreenConnect Execution
id: 57bff678-25d1-4d6c-8211-8ca106d12053
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
modified: 2023-03-05
tags:
- attack.command-and-control
- attack.t1219.002
logsource:
category: process_creation
product: windows
detection:
selection:
- Description: 'ScreenConnect Service'
- Product: 'ScreenConnect'
- Company: 'ScreenConnect Software'
condition: selection
falsepositives:
- Legitimate usage of the tool
level: medium
False positives
- Legitimate usage of the tool
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.