Elastic Security Detection Rules

ScreenConnect Server Spawning Suspicious Processes

Last updated 5 months ago on 2025-03-20
Created a year ago on 2024-03-26

About

Identifies suspicious processes being spawned by the ScreenConnect server process (ScreenConnect.Service.exe). This activity may indicate exploitation activity or access to an existing web shell backdoor.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: Initial AccessTactic: ExecutionData Source: Elastic EndgameData Source: Elastic DefendData Source: SysmonData Source: Windows Security Event LogsData Source: Microsoft Defender for EndpointData Source: SentinelOneData Source: CrowdstrikeLanguage: eql
Severity
high
Risk Score
73
MITRE ATT&CK™

Initial Access (TA0001)(opens in a new tab or window)

↳ Exploit Public-Facing Application (T1190)(opens in a new tab or window)

Execution (TA0002)(opens in a new tab or window)

↳ Command and Scripting Interpreter (T1059)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
endgame-*logs-crowdstrike.fdr*logs-endpoint.events.process-*logs-m365_defender.event-*logs-sentinel_one_cloud_funnel.*logs-system.security*logs-windows.forwarded*logs-windows.sysmon_operational-*winlogbeat-*
Related Integrations

endpoint(opens in a new tab or window)

windows(opens in a new tab or window)

system(opens in a new tab or window)

m365_defender(opens in a new tab or window)

sentinel_one_cloud_funnel(opens in a new tab or window)

crowdstrike(opens in a new tab or window)

Query
process where host.os.type == "windows" and event.type == "start" and
  process.parent.name : "ScreenConnect.Service.exe" and
  (process.name : ("cmd.exe", "powershell.exe", "pwsh.exe", "powershell_ise.exe", "csc.exe") or
  ?process.pe.original_file_name in ("cmd.exe", "powershell.exe", "pwsh.dll", "powershell_ise.exe"))

Install detection rules in Elastic Security

Detect ScreenConnect Server Spawning Suspicious Processes in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).