Justin Ibarra
97ee8cc9ac
* Refresh beats and ecs schemas and default to use latest to validate * remove incorrect ecs_version from zoom rule * remove stale ecs_version from rules
55 lines
1.9 KiB
TOML
55 lines
1.9 KiB
TOML
[metadata]
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creation_date = "2020/09/02"
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maturity = "development"
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updated_date = "2020/11/03"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies probable exploitation of the Web Proxy Auto-Discovery Protocol (WPAD) service. Attackers who have access to
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the local network or upstream DNS traffic can inject malicious JavaScript to the WPAD service which can lead to a full
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system compromise.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License"
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name = "WPAD Service Exploit"
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risk_score = 21
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rule_id = "ec328da1-d5df-482b-866c-4a435692b1f3"
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severity = "high"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Execution"]
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type = "eql"
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query = '''
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/* preference would be to use user.sid rather than domain+name, once it is available in ECS + datasources */
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/* didn't trigger successfully during testing */
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sequence with maxspan=5s
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[process where event.type in ("start", "process_started") and process.name : "svchost.exe" and
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user.domain == "NT AUTHORITY" and user.name == "LOCAL SERVICE"] by process.entity_id
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[network where network.protocol == "dns" and process.name : "svchost.exe" and
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dns.question.name : "wpad" and process.name : "svchost.exe"] by process.entity_id
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[network where process.name : "svchost.exe"
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and network.direction == "outgoing" and destination.port == 80] by process.entity_id
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[library where event.type == "start" and process.name : "svchost.exe" and
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file.name : "jscript.dll" and process.name : "svchost.exe"] by process.entity_id
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[process where event.type in ("start", "process_started") and
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process.parent.name : "svchost.exe"] by process.parent.entity_id
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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 = "T1068"
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name = "Exploitation for Privilege Escalation"
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reference = "https://attack.mitre.org/techniques/T1068/"
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[rule.threat.tactic]
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id = "TA0002"
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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