Steam Vunerability effectting my system

[bigshootr8]

So, here is what happened so I have borderlands 2 through steam and I would play it and then there came a point where I closed the game and re opened it and it started to update for no reason my browser started to really slow down this is on a fios connection with 30 mbps down and 25 up so I was a bit puzzled. So I ran eset nod32 and Ad-aware. Ad-aware found trojans in my computer's system there were a few a couple were generic but it was clear that they were slowing my system down so I had them deleted. Ran the scan's again on both clients nothing came up. And now all of a sudden this morning i have a sound issue i had to mess around with my sound drivers to get my astro a40 outputting sound. I'm just completely beside myself. This is what I'm considering doing. What does the community think any help would be awesome thank you.

1. Backup everything onto 2 dvds
a. documents/media
b. programs

2. secure erase with samsung magician software
3. Format both drives
4. reinstall windows
5. start from scratch.

My system

Intel Core i5 2500k
Asrock Z68 EXTREME4 Gen 3
Gigabyte GeForce GTX 670 2GB OC
Corsair Vengeance DDR3 1600 8GB (2x4)
Samsung 830 256GB SATA III SSD
Seagate Barracuda 500 GB SATA II
Creative Sound Blaster X-Fi Titanium Fatal1ty Pro Series PCI Express Sound Card
LG 12x Super Multi Blue WH12LS38
CM Storm Sniper
Corsair AX850 PSU
Corsair Hydro H100


Peripherals

Keyboard:Razer Anansi
Mouse: Razer Naga
Headset: Astro A40 wireless headset (using optical cable S/PDIF)

 

[bigshootr8]

vulnerability I'm referring to.

http://pc.gamespy.com/articles/122/1226429p1.html