this post was submitted on 07 Sep 2024
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Firefox

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Firefox trojan false positive (?) (lemmy.one)
submitted 2 months ago by wallmenis@lemmy.one to c/firefox@lemmy.ml
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Hello all.

I recently downloaded firefox from the official site as per usual (windows version) and I ran a virustotal check and got a trojan positive.

The md5sum is: 4409905bd4544c6f45e4d5737f130d75

The sha256sum is:

d390bfce3fed1be8c153aebfb9f28043981071b5338745e9207547178f32bf64

Please verify if this file is legitamate.

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[–] lnxtx@feddit.nl 3 points 2 months ago (1 children)

False-positive?

https://www.virustotal.com/gui/file/d390bfce3fed1be8c153aebfb9f28043981071b5338745e9207547178f32bf64/detection

[–] wallmenis@lemmy.one 4 points 2 months ago (1 children)

I have read on the firefox forum that this particular anti-malware engine flags these like that. I just want to know to be sure. Is there somewhere where I can check if it was officially generated by firefox (other than the signature which seems legit)

[–] wallmenis@lemmy.one 6 points 2 months ago

Follow up:

Ok so aparently 7z compression is the culprit. If I extract the file. There is a setup-stub.exe file that shows clear in there.