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https://github.com/splunk/security_content
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P4T12ICK
82 lines
2.3 KiB
YAML
82 lines
2.3 KiB
YAML
name: Sdelete Application Execution
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id: fcc52b9a-4616-11ec-8454-acde48001122
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version: 1
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date: '2021-11-15'
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author: Teoderick Contreras, Splunk
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status: production
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type: Anomaly
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description: This analytic will detect the execution of sdelete.exe attempting to
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delete potentially important files that may related to adversary or insider threats
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to destroy evidence or information sabotage. Sdelete is a SysInternals utility meant
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to securely delete files on disk. This tool is commonly used to clear tracks and
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artifact on the targeted host.
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data_source:
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- Windows Security 4688
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search:
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selection1:
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process.cmd_line|contains:
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- .xls
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- .gz
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- .tar
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- .rar
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- .zip
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- .7z
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- .bmp
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- .gif
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- .png
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- .jpg
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- .txt
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- .log
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- .key
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- .pdf
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- .rtf
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- .ppt
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- .xls
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- .doc
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- -nobanner
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- /accepteula
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- '-z '
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- '-s '
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- '-q '
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- '-r '
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- '-p '
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- '-f '
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- '-c '
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process.file.name|contains: sdelete
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condition: (selection1)
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how_to_implement: To successfully implement this search you need to be ingesting information
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on process that include the name of the process responsible for the changes from
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your endpoints into the `Endpoint` datamodel in the `Processes` node. In addition,
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confirm the latest CIM App 4.20 or higher is installed and the latest TA for the
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endpoint product.
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known_false_positives: False positives should be limited, filter as needed.
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references:
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- https://thedfirreport.com/2020/04/20/sqlserver-or-the-miner-in-the-basement/
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- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1485/T1485.md
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tags:
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analytic_story:
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- Information Sabotage
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- Insider Threat
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asset_type: Endpoint
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confidence: 70
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impact: 60
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message: Sdelete process $process_name$ executed on $dest_device_id$ attempting
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to permanently delete files by $dest_user_id$.
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mitre_attack_id:
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- T1485
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- T1070.004
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- T1070
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observable: []
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product:
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- Splunk Behavioral Analytics
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required_fields: []
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kill_chain_phases:
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- Exploitation
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risk_score: 42
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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/T1485/sdelete/security.log
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source: WinEventLog:Security
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