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When I ran a security scan using Windows Defender, it includes that some files in my Cache2 entries folder are suspicious. Could these be viruses or spyware?

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When I ran a security scan using Windows Defender, it says that three files in my Cache2 entries folder are suspicious and should be sent to Microsoft for further analysis. I am wondering if I should be concerned about this. Could these files be malware, spyware, or viruses? I will clear cache, but just want to make sure if the security of my system has been compromised. Thanks!

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Stuff in the Cache is harmless unless you were to try and run such yourself.

https://support.mozilla.org/en-US/kb/Firefox%20cache%20file%20was%20infected%20with%20a%20virus