You may lose your Internet service Monday unless you do a quick check of your computer for a DNS Changer malware that could have infected your machine more than a year ago. You may not even know that your computer has been infected, although you may be experiencing slower Web surfing and your antivirus software may be disabled.
McGill IT Services recommends following these detection and remediation steps:
1 Check whether your computer is infected: http://www.dcwg.org/detect/
2 If your computer is infected go to: http://www.dcwg.org/fix/