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Posted on June 28th, 2011 at 6:07 PM EST
After a brief break from the blog for a beach trip, I’ve just gotten six e-mails about malware identified as Trojan.Gen.2 in a fifteen minute period. There is some question in my mind as to the legitimacy of these messages, given their close spacing and no others in the hour and a half since. However, if there is a new outbreak of this malware, allow me to ease the fears of anyone reading: Trojan.Gen.2 does not affect the Mac. Although it apparently can get on a Mac from hijacked web sites via Java, it is a Windows-only exploit and cannot do anything to your Mac.
To remove this malware from your Java cache under Snow Leopard (Mac OS X 10.6), just go to the Utilities folder inside the Applications folder and open Java Preferences, then click the Network tab and click the Delete Files button, then click OK.
Posted on June 5th, 2011 at 4:24 PM EST
Firewalls have always been poorly understood, even by knowledgeable people. With the recent upsurge in Mac malware, there has been a lot of questionable advice circulating, some of which related to firewalls. People are recommending firewalls for avoiding malware, blocking hackers, preventing spam and any number of other things. Some of these recommendations have some validity and some do not… but how is the average user to know the difference? Read the rest of this entry »
Posted on June 3rd, 2011 at 7:27 AM EST
More and more reports of new variants of MacProtector, including one now called MacShield, are circulating the internet. Some of them appear to have been modified just enough to be able to slip past some anti-virus (AV) software. Although AV software is constantly being updated to catch these new variants, it’s a game of catch-up.
It is important for Mac users to do two things. First is to be vigilant. If you get alerts about viruses, don’t panic. That’s just what these hackers want you to do. Do not run the installer, if it is downloaded, and if it runs, don’t click the Install button. As long as you don’t do that, you’re not infected.
Second, if it slipped past AV software, submit the installer to AV vendors so they can more quickly update their definitions. I highly recommend submitting to the ClamAV project, which is a volunteer project and thus needs everyone’s assistance. Make sure to include the text “macosx” (no spaces) in the description so that the Mac folks can find those submissions among the floods of Windows malware that get submitted every day.