Samirbous
8b2aed4fc0
* Update defense_evasion_suspicious_managedcode_host_process.toml * Update defense_evasion_suspicious_managedcode_host_process.toml
54 lines
1.6 KiB
TOML
54 lines
1.6 KiB
TOML
[metadata]
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creation_date = "2020/08/21"
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integration = ["endpoint", "windows"]
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maturity = "production"
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min_stack_comments = "New fields added: required_fields, related_integrations, setup"
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min_stack_version = "8.3.0"
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updated_date = "2023/12/14"
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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.file-*", "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 = ["http://web.archive.org/web/20230329154538/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 = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Defense Evasion", "Data Source: Elastic Defend"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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file where host.os.type == "windows" and event.type != "deletion" and
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file.name : ("wscript.exe.log",
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"cscript.exe.log",
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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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name = "Process Injection"
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reference = "https://attack.mitre.org/techniques/T1055/"
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[rule.threat.tactic]
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id = "TA0005"
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name = "Defense Evasion"
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reference = "https://attack.mitre.org/tactics/TA0005/"
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