shashank-elastic
e8c54169a4
* Prep for Release 9.1 * Update Patch Version * Update Patch version * Update Patch version
69 lines
1.8 KiB
TOML
69 lines
1.8 KiB
TOML
[metadata]
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bypass_bbr_timing = true
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creation_date = "2023/08/24"
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integration = ["endpoint", "windows", "system"]
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maturity = "production"
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updated_date = "2025/03/20"
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[rule]
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author = ["Elastic"]
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building_block_type = "default"
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description = """
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The Microsoft Connection Manager Profile Installer (CMSTP.exe) is a command-line program to install Connection Manager
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service profiles, which accept installation information file (INF) files. Adversaries may abuse CMSTP to proxy the
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execution of malicious code by supplying INF files that contain malicious commands.
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"""
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from = "now-9m"
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index = [
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"endgame-*",
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"logs-endpoint.events.process-*",
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"logs-system.security*",
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"logs-windows.sysmon_operational-*",
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"winlogbeat-*",
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]
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language = "eql"
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license = "Elastic License v2"
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name = "Potential Defense Evasion via CMSTP.exe"
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references = ["https://attack.mitre.org/techniques/T1218/003/"]
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risk_score = 21
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rule_id = "bd3d058d-5405-4cee-b890-337f09366ba2"
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severity = "low"
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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: Defense Evasion",
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"Data Source: Elastic Defend",
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"Rule Type: BBR",
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"Data Source: Sysmon",
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"Data Source: Elastic Endgame",
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"Data Source: Windows Security Event Logs",
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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.name : "cmstp.exe" and process.args == "/s"
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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 = "T1218"
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name = "System Binary Proxy Execution"
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reference = "https://attack.mitre.org/techniques/T1218/"
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[[rule.threat.technique.subtechnique]]
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id = "T1218.003"
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name = "CMSTP"
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reference = "https://attack.mitre.org/techniques/T1218/003/"
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[rule.threat.tactic]
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id = "TA0005"
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name = "Defense Evasion"
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reference = "https://attack.mitre.org/tactics/TA0005/"
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