Jonhnathan
8964e5d646
* Update network.direction
* bump updated_date
(cherry picked from commit cc241c0b5e)
51 lines
1.7 KiB
TOML
51 lines
1.7 KiB
TOML
[metadata]
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creation_date = "2020/11/02"
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maturity = "production"
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updated_date = "2021/10/13"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies network connections to the standard Kerberos port from an unusual process. On Windows, the only process that
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normally performs Kerberos traffic from a domain joined host is lsass.exe.
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"""
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false_positives = [
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"""
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HTTP traffic on a non standard port. Verify that the destination IP address is not related to a Domain Controller.
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""",
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]
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from = "now-9m"
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index = ["logs-endpoint.events.*", "winlogbeat-*", "logs-windows.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Kerberos Traffic from Unusual Process"
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risk_score = 47
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rule_id = "897dc6b5-b39f-432a-8d75-d3730d50c782"
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severity = "medium"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Credential Access"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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network where event.type == "start" and network.direction : ("outgoing", "egress") and
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destination.port == 88 and source.port >= 49152 and
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process.executable != "C:\\Windows\\System32\\lsass.exe" and destination.address !="127.0.0.1" and destination.address !="::1" and
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/* insert False Positives here */
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not process.name in ("swi_fc.exe", "fsIPcam.exe", "IPCamera.exe", "MicrosoftEdgeCP.exe", "MicrosoftEdge.exe", "iexplore.exe", "chrome.exe", "msedge.exe", "opera.exe", "firefox.exe")
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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 = "T1558"
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name = "Steal or Forge Kerberos Tickets"
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reference = "https://attack.mitre.org/techniques/T1558/"
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[rule.threat.tactic]
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id = "TA0006"
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name = "Credential Access"
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reference = "https://attack.mitre.org/tactics/TA0006/"
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