Justin Ibarra
c1a0438f45
* replaced/removed all revoked/deprecated techniques * tests will fail on revoked (changed) techniques * tests will fail on deprecated techniques * tests will fail when techniques are mapped to an invalid tactic
58 lines
1.7 KiB
TOML
58 lines
1.7 KiB
TOML
[metadata]
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creation_date = "2020/04/23"
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maturity = "production"
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updated_date = "2020/12/17"
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[rule]
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author = ["Elastic"]
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description = """
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An adversary may add the setuid bit to a file or directory in order to run a file with the privileges of the owning
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user. An adversary can take advantage of this to either do a shell escape or exploit a vulnerability in an application
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with the setuid bit to get code running in a different user’s context. Additionally, adversaries can use this mechanism
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on their own malware to make sure they're able to execute in elevated contexts in the future.
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"""
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from = "now-9m"
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index = ["auditbeat-*", "logs-endpoint.events.*"]
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language = "lucene"
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license = "Elastic License"
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max_signals = 33
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name = "Setuid Bit Set via chmod"
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risk_score = 21
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rule_id = "8a1b0278-0f9a-487d-96bd-d4833298e87a"
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severity = "low"
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tags = ["Elastic", "Host", "Linux", "Threat Detection", "Privilege Escalation"]
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type = "query"
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query = '''
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event.category:process AND event.type:(start or process_started) AND process.name:chmod AND
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process.args:(u+s OR /4[0-9]{3}/) AND
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NOT user.name:root
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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 = "T1548"
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name = "Abuse Elevation Control Mechanism"
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reference = "https://attack.mitre.org/techniques/T1548/"
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[[rule.threat.technique.subtechnique]]
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id = "T1548.001"
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name = "Setuid and Setgid"
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reference = "https://attack.mitre.org/techniques/T1548/001/"
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[rule.threat.tactic]
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id = "TA0004"
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name = "Privilege Escalation"
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reference = "https://attack.mitre.org/tactics/TA0004/"
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[rule.threat.tactic]
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id = "TA0003"
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name = "Persistence"
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reference = "https://attack.mitre.org/tactics/TA0003/"
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