Jonhnathan
b4c84e8a40
* Update Tags * Bump updated date separately to be easy to revert if needed * Update resource_development_ml_linux_anomalous_compiler_activity.toml * Apply changes from the discussion * Update persistence_init_d_file_creation.toml * Update defense_evasion_timestomp_sysmon.toml * Update defense_evasion_application_removed_from_blocklist_in_google_workspace.toml * Update missing Tactic tags * Update unit tests to match new tags * Add missing IG tags * Delete okta_threat_detected_by_okta_threatinsight.toml * Update command_and_control_google_drive_malicious_file_download.toml * Update persistence_rc_script_creation.toml * Mass bump * Update persistence_shell_activity_by_web_server.toml * . --------- Co-authored-by: Mika Ayenson <Mika.ayenson@elastic.co> Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
89 lines
2.7 KiB
TOML
89 lines
2.7 KiB
TOML
[metadata]
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creation_date = "2020/11/27"
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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 = "2023/06/22"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies use of the built-in Windows script interpreters (cscript.exe or wscript.exe) being used to execute a process
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via Windows Management Instrumentation (WMI). This may be indicative of malicious activity.
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"""
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from = "now-9m"
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index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*", "endgame-*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Windows Script Interpreter Executing Process via WMI"
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risk_score = 47
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rule_id = "b64b183e-1a76-422d-9179-7b389513e74d"
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severity = "medium"
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tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Initial Access", "Tactic: Execution", "Data Source: Elastic Endgame"]
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type = "eql"
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query = '''
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sequence by host.id with maxspan = 5s
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[any where host.os.type == "windows" and
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(event.category : ("library", "driver") or (event.category == "process" and event.action : "Image loaded*")) and
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(dll.name : "wmiutils.dll" or file.name : "wmiutils.dll") and process.name : ("wscript.exe", "cscript.exe")]
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[process where host.os.type == "windows" and event.type == "start" and
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process.parent.name : "wmiprvse.exe" and
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user.domain != "NT AUTHORITY" and
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(process.pe.original_file_name :
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(
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"cscript.exe",
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"wscript.exe",
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"PowerShell.EXE",
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"Cmd.Exe",
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"MSHTA.EXE",
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"RUNDLL32.EXE",
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"REGSVR32.EXE",
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"MSBuild.exe",
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"InstallUtil.exe",
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"RegAsm.exe",
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"RegSvcs.exe",
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"msxsl.exe",
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"CONTROL.EXE",
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"EXPLORER.EXE",
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"Microsoft.Workflow.Compiler.exe",
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"msiexec.exe"
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) or
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process.executable : ("C:\\Users\\*.exe", "C:\\ProgramData\\*.exe")
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)
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]
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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 = "T1566"
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name = "Phishing"
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reference = "https://attack.mitre.org/techniques/T1566/"
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[[rule.threat.technique.subtechnique]]
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id = "T1566.001"
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name = "Spearphishing Attachment"
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reference = "https://attack.mitre.org/techniques/T1566/001/"
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[rule.threat.tactic]
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id = "TA0001"
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name = "Initial Access"
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reference = "https://attack.mitre.org/tactics/TA0001/"
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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 = "T1047"
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name = "Windows Management Instrumentation"
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reference = "https://attack.mitre.org/techniques/T1047/"
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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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