NEW 2 DAY OLD COMPUTER-9 TROJANS FOUND! HELP!

Hi guys. I am new to bleepingcomputer and this is my first post. I hope someone can help me.

I just bought an Acer netbook on Friday with McAfee Security Suite preloaded. I also installed Malwarebytes. I installed Opera and Firefox, as I detest ie.

I browsed using ie only until Opera and Firefox were installed.

Anyway, when I performed a Malwarebytes scan the same day as purchase, it found 2 trojans. I deleted and restarted puter and reran MB again, which came up clean. Mcafee then ran its normally scheduled scan and found another different trojan. I removed that properly as well.

Can someone explain how iit s this possible for a brand new computer to so quickly become infectd...and repeatedly!

I have also another laptop and a pc on my network. I have been vigilant with them after removing the conficker virus on both. However, mcafee has been intercepting viruses on both in the past 2 days.

Also, if I use firefox or opera, am I protected by mcafee? or only on ie?

Thanks in advance for the help! I am so aggravated

Edited by sharoncrunch, 22 March 2009 - 07:27 PM.

Hello and welcome sharoncrunch. Would you please post either the infected log(s) or at least the malware found so we can determine what may be happening.
By the way I will be moving this from the AFPP forum to Am I Infected.