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portable security&protection products on usb flash drives


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#1 cafejose

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Posted 05 May 2012 - 10:01 PM

I do not understand the way antivirus/antimalware/spyware products relate to being portable and existing on a USB flash drive when the main computer's hard drive would or could have some other security and protection product installed. Most or at least some products installed on the hard drive let you program to only scan the flash drive? Do you need to be sure that real-time protection for the portable one on the flash drive is turned off in order to even use this flash drive? Can real time protection for the portable security protection product on the usb flash drive be set to only monitor the flash drive and not touch other directories on the main or hosting computer?

Continuing - If we put a portable security protection program onto flash drive and try a scan with the host computer's main security & protection program, scanning the usb flash drive, would the portable av/antimalware be shown as a threat?

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#2 Didier Stevens

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Posted 06 May 2012 - 01:37 PM

Continuing - If we put a portable security protection program onto flash drive and try a scan with the host computer's main security & protection program, scanning the usb flash drive, would the portable av/antimalware be shown as a threat?


Usually not, as the signatures that might trigger other AV are encoded and thus prevent this.

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