Ross Wolf
5fcece8416
Co-Authored-By: Brent Murphy <56412096+bm11100@users.noreply.github.com> Co-Authored-By: Craig Chamberlain <randomuserid@users.noreply.github.com> Co-Authored-By: David French <56409778+threat-punter@users.noreply.github.com> Co-Authored-By: Derek Ditch <dcode@users.noreply.github.com> Co-Authored-By: Justin Ibarra <brokensound77@users.noreply.github.com>
41 lines
1.0 KiB
TOML
41 lines
1.0 KiB
TOML
[metadata]
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creation_date = "2020/03/19"
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ecs_version = ["1.5.0"]
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maturity = "production"
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updated_date = "2020/03/19"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies certutil.exe making a network connection. Adversaries could abuse certutil.exe to download a certificate, or
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malware, from a remote URL.
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"""
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index = ["winlogbeat-*"]
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language = "kuery"
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license = "Elastic License"
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name = "Network Connection via Certutil"
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risk_score = 21
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rule_id = "3838e0e3-1850-4850-a411-2e8c5ba40ba8"
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severity = "low"
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tags = ["Elastic", "Windows"]
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type = "query"
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query = '''
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process.name:certutil.exe and event.action:"Network connection detected (rule: NetworkConnect)" and not destination.ip:(10.0.0.0/8 or 172.16.0.0/12 or 192.168.0.0/16)
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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 = "T1105"
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name = "Remote File Copy"
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reference = "https://attack.mitre.org/techniques/T1105/"
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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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