Jonhnathan
54d5b442cf
* [Rule Tuning] Add Initial Microsoft Defender for Endpoint Compatibility to Windows DRs * . * Update integration-schemas.json.gz * Fix integration manifests
75 lines
2.9 KiB
TOML
75 lines
2.9 KiB
TOML
[metadata]
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creation_date = "2024/03/27"
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integration = ["endpoint", "windows", "sentinel_one_cloud_funnel", "m365_defender"]
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maturity = "production"
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min_stack_comments = "Breaking change at 8.13.0 for SentinelOne Integration."
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min_stack_version = "8.13.0"
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updated_date = "2024/06/25"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies suspicious processes being spawned by the ScreenConnect client processes. This activity may indicate execution
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abusing unauthorized access to the ScreenConnect remote access software.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.process-*", "winlogbeat-*", "logs-windows.sysmon_operational-*", "logs-system.security*", "endgame-*", "logs-sentinel_one_cloud_funnel.*", "logs-m365_defender.event-*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Suspicious ScreenConnect Client Child Process"
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references = ["https://www.huntress.com/blog/slashandgrab-screen-connect-post-exploitation-in-the-wild-cve-2024-1709-cve-2024-1708"]
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risk_score = 47
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rule_id = "78de1aeb-5225-4067-b8cc-f4a1de8a8546"
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severity = "medium"
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tags = [
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"Domain: Endpoint",
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"OS: Windows",
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"Use Case: Threat Detection",
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"Tactic: Command and Control",
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"Resources: Investigation Guide",
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"Data Source: Elastic Endgame",
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"Data Source: Elastic Defend",
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"Data Source: Sysmon",
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"Data Source: SentinelOne",
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"Data Source: Microsoft Defender for Endpoint"
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]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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process where host.os.type == "windows" and event.type == "start" and
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process.parent.name :
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("ScreenConnect.ClientService.exe",
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"ScreenConnect.WindowsClient.exe",
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"ScreenConnect.WindowsBackstageShell.exe",
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"ScreenConnect.WindowsFileManager.exe") and
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(
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(process.name : "powershell.exe" and
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process.args : ("-enc", "-ec", "-e", "*downloadstring*", "*Reflection.Assembly*", "*http*")) or
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(process.name : "cmd.exe" and process.args : "/c") or
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(process.name : "net.exe" and process.args : "/add") or
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(process.name : "schtasks.exe" and process.args : ("/create", "-create")) or
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(process.name : "sc.exe" and process.args : "create") or
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(process.name : "rundll32.exe" and not process.args : "url.dll,FileProtocolHandler") or
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(process.name : "msiexec.exe" and process.args : ("/i", "-i") and
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process.args : ("/q", "/quiet", "/qn", "-q", "-quiet", "-qn", "-Q+")) or
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process.name : ("mshta.exe", "certutil.exe", "bistadmin.exe", "certreq.exe", "wscript.exe", "cscript.exe", "curl.exe",
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"ssh.exe", "scp.exe", "wevtutil.exe", "wget.exe", "wmic.exe")
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)
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1219"
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name = "Remote Access Software"
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reference = "https://attack.mitre.org/techniques/T1219/"
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[rule.threat.tactic]
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id = "TA0011"
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name = "Command and Control"
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reference = "https://attack.mitre.org/tactics/TA0011/"
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