USB Memory Stick Virus or Legit Install Software?

[polonus]

Hi Avastfan1,

What I should do is to take a good look with some scanners at the folder where you normally download with MBAM or SAS updated to the latest versions. You could also perform a full online scan. It will not cleanse or remove, but you can get an idea if you are infected with something by  running a full pestscan in IE: http://www.ca.com/US/securityadvisor/pestscan/
I would also give the computer a good cleansing for temporal files with two programs: ATF cleaner 3.0 (tick all): http://www.atribune.org/index.php?option=com_content&task=view&id=25&Itemid=25
Another good one to use is ClearProg: http://www.clearprog.de/download.php?id=40

But I think you only will establish the fact that your computer is clean and what you downloaded were the normal install routines for a pendrive that was ready for its initial install,

Take care and stay malware free and secure online, is the wish and command of,

polonus (malware fighter)