Jonhnathan
81292aee8a
* [Rule Tuning] 3rd Party EDR - Add Crowdstrike FDR support - 1 * Update Integrations unit tests * Update test_all_rules.py
92 lines
2.6 KiB
TOML
92 lines
2.6 KiB
TOML
[metadata]
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creation_date = "2020/08/21"
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integration = ["endpoint", "windows", "system", "m365_defender", "sentinel_one_cloud_funnel", "crowdstrike"]
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maturity = "production"
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updated_date = "2024/10/31"
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min_stack_version = "8.14.0"
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min_stack_comments = "Breaking change at 8.14.0 for the Windows Integration."
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[rule]
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author = ["Elastic"]
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description = """
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Identifies executions of .NET compilers with suspicious parent processes, which can indicate an attacker's attempt to
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compile code after delivery in order to bypass security mechanisms.
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"""
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from = "now-9m"
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index = [
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"winlogbeat-*",
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"logs-endpoint.events.process-*",
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"logs-windows.forwarded*",
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"logs-windows.sysmon_operational-*",
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"endgame-*",
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"logs-system.security*",
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"logs-m365_defender.event-*",
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"logs-sentinel_one_cloud_funnel.*",
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"logs-crowdstrike.fdr*",
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]
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language = "eql"
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license = "Elastic License v2"
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name = "Suspicious .NET Code Compilation"
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risk_score = 47
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rule_id = "201200f1-a99b-43fb-88ed-f65a45c4972c"
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severity = "medium"
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tags = [
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"Domain: Endpoint",
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"OS: Windows",
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"Use Case: Threat Detection",
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"Tactic: Defense Evasion",
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"Tactic: Execution",
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"Data Source: Elastic Endgame",
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"Data Source: Elastic Defend",
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"Data Source: System",
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"Data Source: Microsoft Defender for Endpoint",
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"Data Source: Sysmon",
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"Data Source: SentinelOne",
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"Data Source: Crowdstrike",
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]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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process where host.os.type == "windows" and event.type == "start" and
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process.name : ("csc.exe", "vbc.exe") and
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process.parent.name : ("wscript.exe", "mshta.exe", "cscript.exe", "wmic.exe", "svchost.exe", "rundll32.exe", "cmstp.exe", "regsvr32.exe")
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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 = "T1027"
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name = "Obfuscated Files or Information"
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reference = "https://attack.mitre.org/techniques/T1027/"
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[[rule.threat.technique.subtechnique]]
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id = "T1027.004"
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name = "Compile After Delivery"
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reference = "https://attack.mitre.org/techniques/T1027/004/"
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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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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1059"
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name = "Command and Scripting Interpreter"
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reference = "https://attack.mitre.org/techniques/T1059/"
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[[rule.threat.technique.subtechnique]]
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id = "T1059.005"
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name = "Visual Basic"
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reference = "https://attack.mitre.org/techniques/T1059/005/"
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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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