BleepingComputer.com: Downloading Object from Malicious URL pop-up

Hello i am facing this problem from last 2-3 weeks, searched on internet about it but only found AVG and Kaspersky forums with some minor posts, They saying its nothing to worry about.
But every page i open in any browser, i have (Firefox, Chrome, IE) my Kaspersky pop-up window appear on bottom of the screen showing this msg:



this is just a recent screenshot as you can see the background image is of your forums.
anyways, here is a detailed image of Kaspersky Internet Security 2012 stats, Same msg coming in AVG 2011 and AVG2012 versions



Is it some virus, network attack or hijack? or spyware/malware?
Kindly help me.

PS: I have scanned with Malwarebytes' Anti-Malware, also with Spybot-S&D but nothing has been found, no infection.
PS: PS: Daily new URL appear in this list whereas these urls actually does not exists i think. I have try editing my host file and enter this website urls to block the access, but nothing happen, these pop-ups still coming

Kindly advice me what kind of Logs you need and where should i post my Logs.

thanks

Please download MiniToolBox, save it to your desktop and run it.

Checkmark the following checkboxes:

• List content of Hosts
  
• List IP configuration
  
• List last 10 Event Viewer log
  
• List Installed Programs
  
• List Users, Partitions and Memory size.
  
• List Minidump Files

Click Go and post the result (Result.txt). A copy of Result.txt will be saved in the same directory the tool is run.

Note: When using "Reset FF Proxy Settings" option Firefox should be closed.