MacSweeper
MacSweeper is a rogue application that misleads users by exaggerating reports about spyware, adware or viruses on their computer. It is the first known "rogue" application for the Mac OS X operating system. The software was discovered by F-Secure, a Finland-based computer security software company, on January 17, 2008. , the official website for the application, macsweeper.com, was shut down, as was the website for KiVVi Software shortly after. Problems caused by MacSweeper. MacSweeper could be downloaded through KiVVi software's (the company that makes the "rogue") website, as a drive-by download, or silently downloaded with another  application. Once automatically installed, MacSweeper scans the computer and informs the user that many applications on their computer (such as iCal or Dashboard, safe pre-installed Apple applications) are "fat binaries or trash" and must be slimmed immediately. When the unsuspecting user tries to "Remove Objects", they are told that the trial version downloaded cannot delete the supposed trash. Then the user must provide credit card details to the company for a $39.99 "lifetime subscription serial key". Clones. MacSweeper's Graphical User Interface and behaviour is almost identical to another program that is published by KiVVi Software, Cleanator . Cleanator, however is designed for Windows operating systems. It is also very similar to the SpySheriff and SpyAxe applications, infamous for typosquatting Google. A paragraph from within the software that encourages users to purchase the full version is identical to that of SpySheriff. Removal. Companies including McAfee, Symantec and Sunbelt Software have identified the threat and have posted removal instructions on their websites. Intego VirusBarrier and iAntivirus are capable of removing it too. SiteAdvisor, a division of McAfee has controversially given the site a green rating. However, SiteAdvisor's tests are conducted on PCs, that cannot recognise .dmg, the  file format of MacSweeper. Media attention. MacSweeper has received much media attention from websites including CNET as well as others, as it is considered to be one of the first instances of malware designed for the Mac OS X operating system. MacSweeper's response. After F-Secure alerted Macintosh users about the rogue, MacSweeper responded on F-Secure's website, saying References. http://blog.intego.com/index.php?s=macsweeper