June 30, 2011
Homefield IT
MacDefender is the name of a newly discovered malware program that targets Mac OS X users. Disguised as an anti-virus program for Macs, it dupes – and if that fails, bullies – users into entering credit card information to pay for fake anti-virus software.
It is a widely held belief that one of the reasons Macs are superior to other systems is because of their ‘invulnerability’ to viruses, malware, and similar threats. All well and good, except for the fact that a recent rogue anti-virus malware that specifically attack Mac OS X systems has been discovered.
So much for the ‘Mac = no virus’ myth.
Called the ‘MacDefender’ and also known as Mac Security and Mac Protector, this malware tricks users by having them think that their system is under attack. It begins when users visit a malicious website where the program automatically downloads itself to the computer. If you have the “Open safe files after downloading” option selected, it automatically installs itself onto the system. The original installation package is then also automatically deleted.
Next, a new menu item appears on the Mac OS X menubar. You’ll see a small orange shield that becomes red, which supposedly means that there are viruses in your system. You’ll then be prompted to “register” – which involves giving out your credit card information – to a website to clean the virus. If you don’t, the malware will then direct your browser to porn sites to ‘encourage’ you to register and pay up.
To know more about how MacDefender works, check out this video.
While Macs are certainly targeted less than Windows systems, the threat of getting infected by viruses and malware is very real, especially if myths like Macs being impervious to viruses persist. To know more about protecting yourself from threats like these, please contact us so we can draw up a plan to keep your system safe and secure.