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Pystyykö F-Securen ohjelmistot tarkistamaan tuollaisen tiedoston tai varoittamaan puutteellisesta tarkistusksesta ?
This is the English language part of the community.
In order for more people to be able to try to help, please repost in English.
How does F-secure check a zip-file containing another password-protected zip-file ?
Does F-secure warn user if it can't check the file ?
All popular (including F-secure) antivirus-programs tell that the (original) zip-file is OK. None tells nothing about the contained password-protected zip-file. So, after unzipping the original zip-file user will have an unchecked zip-file in his machine and anything can happen. This is practically equal to an unchecked crypted file.
The Password protected Zip-file may not be able to be scanned. On the other hand it is like @Simon says that the files are scanned when opened and blocked if found malicious. Files that are contained in a compressed file cant do any harm until they are decompressed and released in the system.