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Nasreddine Bencherchali
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* Add YAML formatting and validation infrastructure - Add yamlfmt configuration (.yamlfmt) with 4-space indent, LF line endings - Add yamllint configuration (.yamllint) for syntax validation (detections/ only) - Add pre-commit hook for automatic YAML formatting - Add CI validation script with unified error output - Add GitHub Actions workflow for PR validation - Add documentation for setup and usage - Support custom yamlfmt binary path via --yamlfmt-path flag * comment yaml check from pre-commit * apply yamlfmt * Update yaml-validation.yml * Update yaml-validation.yml * application folder search formatting * cloud folder search formatting * web folder search formatting * network folder search formatting * endpoint folder search formatting * resolve first conflict * apply formatting * remove additional pipe * Update README.md * update versions * restore and update formatting (#3920) --------- Co-authored-by: Bhavin Patel <bhavin.j.patel91@gmail.com>
54 lines
3.3 KiB
YAML
54 lines
3.3 KiB
YAML
name: Windows Debugger Tool Execution
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id: e14d94a3-07fb-4b47-8406-f5e37180d422
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version: 7
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date: '2026-02-25'
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author: Teoderick Contreras, Splunk
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data_source:
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- Sysmon EventID 1
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- Windows Event Log Security 4688
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- CrowdStrike ProcessRollup2
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type: Hunting
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status: production
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description: This analysis detects the use of debugger tools within a production environment. While these tools are legitimate for file analysis and debugging, they are abused by malware like PlugX and DarkGate for malicious DLL side-loading. The hunting query aids Security Operations Centers (SOCs) in identifying potentially suspicious tool executions, particularly for non-technical users in the production network.
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search: |-
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| tstats `security_content_summariesonly` min(_time) as firstTime max(_time) as lastTime FROM datamodel=Endpoint.Processes
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WHERE Processes.process_name = "x32dbg.exe"
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OR
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Processes.process_name = "x64dbg.exe"
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OR
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Processes.process_name = "windbg.exe"
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BY Processes.action Processes.dest Processes.original_file_name
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Processes.parent_process Processes.parent_process_exec Processes.parent_process_guid
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Processes.parent_process_id Processes.parent_process_name Processes.parent_process_path
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Processes.process Processes.process_exec Processes.process_guid
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Processes.process_hash Processes.process_id Processes.process_integrity_level
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Processes.process_name Processes.process_path Processes.user
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Processes.user_id Processes.vendor_product
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| `drop_dm_object_name(Processes)`
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| `security_content_ctime(firstTime)`
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| `security_content_ctime(lastTime)`
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| `windows_debugger_tool_execution_filter`
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how_to_implement: The detection is based on data that originates from Endpoint Detection and Response (EDR) agents. These agents are designed to provide security-related telemetry from the endpoints where the agent is installed. To implement this search, you must ingest logs that contain the process GUID, process name, and parent process. Additionally, you must ingest complete command-line executions. These logs must be processed using the appropriate Splunk Technology Add-ons that are specific to the EDR product. The logs must also be mapped to the `Processes` node of the `Endpoint` data model. Use the Splunk Common Information Model (CIM) to normalize the field names and speed up the data modeling process.
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known_false_positives: administrator or IT professional may execute this application for verifying files or debugging application.
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references:
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- https://www.splunk.com/en_us/blog/security/enter-the-gates-an-analysis-of-the-darkgate-autoit-loader.html
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- https://www.trendmicro.com/en_us/research/23/b/investigating-the-plugx-trojan-disguised-as-a-legitimate-windows.html
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tags:
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analytic_story:
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- DarkGate Malware
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- PlugX
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asset_type: Endpoint
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mitre_attack_id:
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- T1036
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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security_domain: endpoint
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tests:
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- name: True Positive Test
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attack_data:
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- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1036/debugger_execution/debugger.log
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source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
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sourcetype: XmlWinEventLog
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