@debiru Thank you for your exceptionally considerate support response!
Windows Defender tends to trigger virus alerts based on suspicion, so I can imagine how confusing that must have been.
If I may humbly mention, I have created a guide topic for such situations. If similar issues arise in the future, I would be delighted if you could share the link to direct users there.
https://forum.ripper.store/topic/80507/corrupted-file-after-extraction-virus-detected-check-this-before-asking-your-benefactor/
@yuko @yuzugururu
If you are willing, I would be very happy to have your cooperation in the future as well.