I have to tell you, this was the one of the most stubborn case I had recently, so I'm glad to see it solved (I hope

)
I'll try to explain in simple terms what DNS is.
Every website has a domain name, like
www.amazon.com (this is what we, people, remember) and an IP (numeric) address, which in case of Amazon is 207.171.166.48 (this is what your computer knows and remembers).
So, when you type in
www.amazon.com, DNS translates it to 207.171.166.48 and your computer knows, it has to go to Amazon site.
Now, some malicious file will go "in between" and when you type
www.amazon.com, that malicious file will redirect your computer to some other address, than 207.171.166.48
Normally, when your computer gets finally cleaned, resetting router should straight up all that mess, but in some cases, like yours, it may not be enough to correct the issue.
I hope, I explained it clearly enough
Now, last steps...
OTL Clean-Up
Clean up with
OTL:
* Double-click
OTL.exe to start the program.
* Close all other programs apart from OTL as this step will require a reboot
* On the OTL main screen, press the
CLEANUP button
* Say
Yes to the prompt and then allow the program to reboot your computer.
If you still have any tools or logs leftover on your computer you can go ahead and delete those off of your computer now.
======================================================================
Your computer is clean
1. We need to reset system restore to prevent your computer from being accidentally reinfected by using some old restore point(s). We'll create fresh, clean restore point.
Turn off System Restore:
-
Windows XP:
1. Click Start.
2. Right-click the My Computer icon, and then click Properties.
3. Click the System Restore tab.
4. Check "Turn off System Restore".
5. Click Apply.
6. When turning off System Restore, the existing restore points will be deleted. Click Yes to do this.
7. Click OK.
-
Windows Vista and 7:
1. Click Start.
2. Right-click the Computer icon, and then click Properties.
3. Click on System Protection under the Tasks column on the left side
4. Click on Continue on the "User Account Control" window that pops up
5. Under the System Protection tab, find Available Disks
6. Uncheck the box for any drive you wish to disable system restore on (in most cases, drive "C:")
7. When turning off System Restore, the existing restore points will be deleted. Click "Turn System Restore Off" on the popup window to do this.
8. Click OK
2. Restart computer.
3. Turn System Restore on.
4. Make sure,
Windows Updates are current.
5.
If any Trojan was listed among your infection(s), make sure, you change all of your on-line important passwords (bank account(s), secured web sites, etc.) immediately!
6. Download, and install
WOT (Web OF Trust):
http://www.mywot.com/. It'll warn you (in most cases) about dangerous web sites.
7. Run defrag at your convenience.
8. Read
How did I get infected?, With steps so it does not happen again!:
http://www.bleepingcomputer.com/forums/topic2520.html
9. Please, let me know, how is your computer doing.