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MediumSigmaHQ Nasreddine Bencherchali (Nextron Systems)

Diskshadow Script Mode - Uncommon Script Extension Execution

Detects execution of "Diskshadow.exe" in script mode to execute an script with a potentially uncommon extension. Initial baselining of the allowed extension list is required.

Detection logic

Detection requirements

Platform: Linux macOS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: windows
Log source category: process_creation

Known benign triggers

False postitve might occur with legitimate or uncommon extensions used internally. Initial baseline is required.

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
bohops.com/2018/03/26/diskshadow-the-return-of-vss-evasion-persistence-and-active-directory-database-extraction/	Security research	4from 2 sources
learn.microsoft.com/en-us/windows-server/administration/windows-commands/diskshadow	Product documentation	3
medium.com/@cyberjyot/lolbin-execution-via-diskshadow-f6ff681a27a4	Unclassified	3
research.checkpoint.com/2022/evilplayout-attack-against-irans-state-broadcaster/	Unclassified	3
www.ired.team/offensive-security/credential-access-and-credential-dumping/ntds.dit-enumeration	Unclassified	5
www.lifars.com/wp-content/uploads/2022/01/GriefRansomware_Whitepaper-2.pdf	Unclassified	3
www.zscaler.com/blogs/security-research/technical-analysis-crytox-ransomware	Unclassified	3

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