Which User?

[F12]

Hello MBAM!

I visited my fiance's parents today, and noticed that their laptop had an infection that looked fairly serious.

I like to use Malwarebytes for my scanning. =)

The parents use Windows Vista Home Premium SP1.

They have three users on this laptop, plus a guest, so their sign on screen is ridiculously LONG.

Usually, I download and update Malwarebytes, then boot into SAFE MODE to do a scan.

I did this, but it found nothing. I'm quite sure this computer is infected, so here are my questions...

WHICH ACCOUNT should I scan?

Is it possible for one account to be infected, and the others NOT?

(because they said it shows up on one account, and not the other)

USER ACCOUNTS ARE:

MOM, DAD, DAUGHTER A, and GUEST

They say the infection shows up on Dad's screen all the time, but very rarely for the rest of the users.

I scanned under Mom's user account, but found nothing.

I thought about physically pulling the HDD from the laptop and scanning it with another computer through USB adapter cables, but we are an hour apart, so this will be the most difficult solution.

Thanks in advance!

(Sorry for the long post)

[exile360]

Greetings and welcome to the forum F12. MBAM works best when you use it in normal mode, not safe mode. And for Vista, be sure that you installed it by right clicking the setup file and clicking Run as administrator. Your best bet to make sure you get all the nasties would be to update MBAM (of course) and do a quick scan on all the user accounts (the Dad account in particular) and yes, it is quite possible for one account to get infected and not another, especially on Vista thanks to the additional protection that technologies like UAC provide. If MBAM is unable to knock it out for you, then please read the instructions here: http://www.malwarebytes.org/forums/index.php?showtopic=2936 and post your logs in a new topic here: http://www.malwarebytes.org/forums/index.php?showforum=7

Please be sure not to install any software or use any removal/scanning tools exept those that you are instructed to by the expert who will be assisting you as doing so can make their job much more difficult. I hope I was helpful. Good luck and safe surfing.