If you are infected with the "adnow" virus then this tool from Panda might remove it for you. Instructions from the Majorgeeks Malware Team available.

If you are infected with the "adnow" virus, you probably have these symptoms:

Internet searches are redirected to abnow.com, mediashifting or any other websites.

The antivirus protection detects Trj/Sirefef and/or Rootkit/ZAccess. Panda Security has created a disinfection tool that should erase all traces of the virus.

Please see How to Remove the "adnow" Virus for instructions on using this tool correctly.