Detection: Sdelete Application Execution
Description
This analytic will detect the execution of sdelete.exe attempting to delete potentially important files that may related to adversary or insider threats to destroy evidence or information sabotage. Sdelete is a SysInternals utility meant to securely delete files on disk. This tool is commonly used to clear tracks and artifact on the targeted host.
Annotations
No annotations available.
Implementation
To successfully implement this search you need to be ingesting information on process that include the name of the process responsible for the changes from your endpoints into the Endpoint datamodel in the Processes node. In addition, confirm the latest CIM App 4.20 or higher is installed and the latest TA for the endpoint product.
Known False Positives
False positives should be limited, filter as needed.
Associated Analytic Story
Risk Based Analytics (RBA)
| Risk Message | Risk Score | Impact | Confidence |
|---|---|---|---|
| Sdelete process $process_file_name$ executed on $device_hostname$ attempting to permanently delete files by $actor_user_name$. | 42 | 60 | 70 |
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
Version: 4