Q&A What is the securest utility for unzipping downloads?

shmu26

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#1
file archivers such as winrar and 7-zip are known to be exploitable.
what is the securest way to unzip downloads?
You don't really know what's inside until you unzipped it...
 

Spawn

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#3

shmu26

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#5
file archivers such as winrar and 7-zip are known to be exploitable.
what is the securest way to unzip downloads?
You don't really know what's inside until you unzipped it...
I don't know of any utility that will do that for you ( that's not to say that there isn't one ).

I use this method for any downloaded zip:-

Upload to Virustotal and grab the checksum from there .
Calculate the checksum locally for your download and compare the two .
Run an on-demand scanner on the download if you like .
If all looks good I use 7-zip to extract the contents.

I don't know exactly how secure this method actually is , but it hasn't let me down so far .
 
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#8
You could extract under Sandboxie, but follow the Show Hidden Extensions so you are aware of the file type.
Spawn Spawn beat me to it... another method is with WinRAR tool> Scan archive for viruses, then of course with Zipware.
 
Last edited:

jamescv7

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#10
I cannot tell about security enhancement, but you can try alternatives like BandiZip, WinZip and others.

Usually the main program is how to compressing within visible time.
 

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