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When a virus is detected during an installation process, but not on the program CD - is it a false detection?

Posted on 2009-02-19
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Last Modified: 2013-11-22
This is a general question about how Anti Virus software perhaps falsely detect virus signatures. My problem is this : during an installation of a specific program, McAfee comes up with a virus detection alert. A specific file is beeing mentioned as a contaminated file, with a specific virus name. But the strange thing is that the virus is not detected while the program-cd is searched - neither does the installed program folder contain any detected viruses.

I have searched on the internet for furher information about this virus, but I havent found anything useful - other than it exists, and that it is known by all the big AV-softwares. I havent found anything about false detection beeing triggered.

I have searched the cd, and installed programfolder also with other AV-software without any success. I am starting to lean towards to that McAfee is mistaken, and falsely reqognizes some aspect in the installation process as a known virus signature.

Can one be SURE of that the program-cd in fact does not contain a virus, if the same antivirus software which detected a virus during install, does not detect it before or after on the program-cd or installed files on the computer?
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Question by:andre_st
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by:William2451
ID: 23679388
It would be a false postive, most software companies reccomend you disable antivirus before installing thier software to prevent this.
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William2451 earned 2000 total points
ID: 23679441
The reason why they reccomend you diasble it is because some anti-virus will think it is a virus becasue the install will change some system files and such.
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by:andre_st
ID: 23679567
Thanks alot for your quick answer! I accept your answer as the "solution".

Regards,

A.J.
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