Description published May 23, 2011|Description updated Jun 09, 2011

MacDefender

Alert level: Severe Detected with Windows Defender Antivirus

Also detected as: Rogue:MacOS_X/FakeMacdef (Microsoft)

Mac Defender is a distribution/variant of Rogue:MacOS_X/FakeMacdef - a family of rogue applications that affect Mac OSX. They claim to scan for malware and display fake warning messages regarding “malicious programs and viruses”. They attempt to scare the affected user into paying for the fake product by displaying fake scan results, infection messages and warnings.

Note: Rogue Antivirus programs have become prevalent in the wild. These are programs that generate misleading alerts and false detections in order to convince users to purchase illegitimate security software. Some of these programs may display product names or logos in an attempt to impersonate Microsoft products.