Justin Ibarra
6bdfddac8e
* Expand timestamp_override tests * removed timestamp_override from eql sequence rules * add config entry for eql rules with beats index and t_o * add timestamp_override to missing fields
53 lines
1.5 KiB
TOML
53 lines
1.5 KiB
TOML
[metadata]
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creation_date = "2020/08/21"
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maturity = "production"
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updated_date = "2022/03/31"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies a suspicious managed code hosting process which could indicate code injection or other form of suspicious
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code execution.
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"""
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from = "now-9m"
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index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Suspicious Managed Code Hosting Process"
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references = ["https://blog.menasec.net/2019/07/interesting-difr-traces-of-net-clr.html"]
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risk_score = 73
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rule_id = "acf738b5-b5b2-4acc-bad9-1e18ee234f40"
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severity = "high"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Defense Evasion"]
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type = "eql"
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query = '''
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sequence by process.entity_id with maxspan=5m
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[process where event.type == "start" and
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process.name : ("wscript.exe", "cscript.exe", "mshta.exe", "wmic.exe", "regsvr32.exe", "svchost.exe", "dllhost.exe", "cmstp.exe")]
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[file where event.type != "deletion" and
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file.name : ("wscript.exe.log",
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"cscript.exe",
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"mshta.exe.log",
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"wmic.exe.log",
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"svchost.exe.log",
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"dllhost.exe.log",
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"cmstp.exe.log",
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"regsvr32.exe.log")]
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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 = "T1055"
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reference = "https://attack.mitre.org/techniques/T1055/"
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name = "Process Injection"
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[rule.threat.tactic]
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id = "TA0005"
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reference = "https://attack.mitre.org/tactics/TA0005/"
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name = "Defense Evasion"
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