IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Suspicious ScreenConnect Client Child Process
editSuspicious ScreenConnect Client Child Process
editIdentifies suspicious processes being spawned by the ScreenConnect client processes. This activity may indicate execution abusing unauthorized access to the ScreenConnect remote access software.
Rule type: eql
Rule indices:
- logs-endpoint.events.process-*
- winlogbeat-*
- logs-windows.sysmon_operational-*
- logs-system.security*
- endgame-*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Domain: Endpoint
- OS: Windows
- Use Case: Threat Detection
- Tactic: Command and Control
- Resources: Investigation Guide
- Data Source: Elastic Endgame
- Data Source: Elastic Defend
- Data Source: Sysmon
Version: 1
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editprocess where host.os.type == "windows" and event.type == "start" and process.parent.name : ("ScreenConnect.ClientService.exe", "ScreenConnect.WindowsClient.exe", "ScreenConnect.WindowsBackstageShell.exe", "ScreenConnect.WindowsFileManager.exe") and ( (process.name : "powershell.exe" and process.args : ("-enc", "-ec", "-e", "*downloadstring*", "*Reflection.Assembly*", "*http*")) or (process.name : "cmd.exe" and process.args : "/c") or (process.name : "net.exe" and process.args : "/add") or (process.name : "schtasks.exe" and process.args : ("/create", "-create")) or (process.name : "sc.exe" and process.args : "create") or (process.name : "rundll32.exe" and not process.args : "url.dll,FileProtocolHandler") or (process.name : "msiexec.exe" and process.args : ("/i", "-i") and process.args : ("/q", "/quiet", "/qn", "-q", "-quiet", "-qn", "-Q+")) or process.name : ("mshta.exe", "certutil.exe", "bistadmin.exe", "certreq.exe", "wscript.exe", "cscript.exe", "curl.exe", "ssh.exe", "scp.exe", "wevtutil.exe", "wget.exe", "wmic.exe") )
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Command and Control
- ID: TA0011
- Reference URL: https://attack.mitre.org/tactics/TA0011/
-
Technique:
- Name: Remote Access Software
- ID: T1219
- Reference URL: https://attack.mitre.org/techniques/T1219/