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 = "2020/02/18"
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ecs_version = ["1.4.0"]
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maturity = "production"
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updated_date = "2020/02/18"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies unusual instances of rundll32.exe making outbound network connections. This may indicate adversarial activity
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and may identify malicious DLLs.
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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 = "Unusual Network Connection via RunDLL32"
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risk_score = 21
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rule_id = "52aaab7b-b51c-441a-89ce-4387b3aea886"
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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:rundll32.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 or 127.0.0.0/8)
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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 = "T1085"
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name = "Rundll32"
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reference = "https://attack.mitre.org/techniques/T1085/"
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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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