AVtain

The Avtain.com domain can masquerade as a security site that promotes and sells an anti virus protection software, the rogue Antivirus Action Avtain.com is affiliated with is already identified as a bogus anti virus protection software.
Heres an article on the avtain virus . This provides info on how to remove avtain com virus infection.


Avtain.com scam

Like most other fake anti virus protector malwares, the AV Tain virus may keep redirecting -infected systems to the http://Avtain.com website. The Avtain.com hijacker does this to bombard users with ads that try to persude them to buy the Antivirus Action license or activation key. Please avoid downloading any links or paying for anything that the www.Avtain.com site promotes.

Avtain.com removal: How to remove Antivirus Action

It is advised to remove the infection to free your PC from the annoying browser redirects and popups. You can use Malwarbytes as an avtain removal tool.

* Reboot your computer in Safe mode with networking. Do this by restarting your PC and pressing the F8 key after hearing your computer beep on startup. Once the Windows Advanced Options menu appears, select Safe mode with networking and then press ENTER.

* Download, save and run ATF-Cleaner.exe. Under MAIN choose, Select All & click the Empty Selected button.

* Download Malwarebytes’ Anti-Malware.
* Double-click mbam-setup.exe and follow the prompts to install the program.
* At the end, be sure a check-mark is placed next to the following:

Update Malwarebytes’ Anti-Malware
Launch Malwarebytes’ Anti-Malware

* Click Finish.
* If an update is found, Malbytes anti malware will download and install the latest version.
* Once the program has loaded, select Perform quick scan, then click Scan.
* When the scan is complete, click OK, then Show Results to view the results.
* Be sure that everything is checked, and click Remove Selected. Reboot your computer if prompted.
* When completed, a log will open in Notepad. The AVtain antivirus virus should now be gone.

You may want to read this post for more info on how to remove Anitvirus Action ultimate.