Avast repeatedly blocking websites / machine running slow / no viruses detected

Viruses and worms
1

This started last night. Even when I have no applications running, Avast blocks explorer.exe from connecting to websites.

OS is Windows 7 and is current with all updates

The most frequent one is:
URL: http://xmlka.com/click?app-app45&click=e887d55d-5b4d-47cb-b665-04fb89f59e1d&searc…
Infection: URL:MAL
Process: C:\Windows\explorer.exe

The website is the same but the click?app changes each time.

Full Avast scan and rootkit scan show nothing.
My machine is running slower than a dog and I can’t figure out what else to check.

Thanks for your help.

2

I have the same thing going on most of the pages being blocked are from iexplore.exe, Avast is blocking threats but not removing them.

3

Just blocked:

URL: http://s.vb3k.com/crossdomain.xml
Infection: URL:MAL
Process: C:\Windows\explorer.exe

4

Could you let me know if this stops it

CAUTION : This fix is only valid for this specific machine, using it on another may break your computer

Open notepad and copy/paste the text in the quotebox below into it:

CreateRestorePoint: 2014-12-25 15:00 - 2014-12-26 14:53 - 00000000 ___HD () C:\ProgramData\{D9E629DC-CB1C-4A97-9900-81922B4EFFD4} EmptyTemp: CMD: bitsadmin /reset /allusers

Save this as fixlist.txt, in the same location as FRST.exe

https://dl.dropboxusercontent.com/u/73555776/FRSTfix.JPG

Run FRST and press Fix
On completion a log will be generated please post that

THEN

Please download AdwCleaner by Xplode onto your desktop.

[*]Close all open programs and internet browsers.
[*]Double click on AdwCleaner.exe to run the tool.
[*]Click on Scan.
[*]After the scan is complete click on “Clean”
[*]Confirm each time with Ok.
[*]Your computer will be rebooted automatically. A text file will open after the restart.
[*]Please post the content of that logfile with your next answer.
[*]You can find the logfile at C:\AdwCleaner[S1].txt as well.

5

I’m so sorry I didn’t update this thread. I had already run FRST and Adwcleaner and attached the logs as I read the intro thread for viruses. They were both clean. I was a bit impatient so I poked around myself. The professional version of SuperAntiSpyware found the malware and using Hijackthis, I identified 2 registry entries that I deleted. All is right with the world again. Thanks so much for your response!