AntiVerminser is a rogue anti-spyware program from Russia that may install itself onto your computer without your permission, through a Trojan or web browser security holes.
SpyEraser can automatically remove the Adware. Even if you remove it manually, we recommend you should use SpyEraser to make sure it's completely removed from your system and will not be reinstalled by itself.
More
Removal Instructions for Emerging Adware & Spyware