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Mac trojan pretends to be Flash Player Installer to get in the door |
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Mac trojan pretends to be Flash Player Installer to get in the door Par SecurityLe [2011-09-26] à 22:16:37
Présentation : Hot on the heels of last week's Mac malware posing as a PDF is a new piece of malware posing as something even more insidious a Flash player installer. Security firm Intego was the first to post about the new malware on its blog, noting that although the company has only received one report so far from a user who downloaded it, the malware does exist in the wild and may trick Mac users who don't yet have Flash installed. The malware in question is a trojan horse called Flashback OSX flashback.A users may end up acquiring it by clicking a link on a malicious website to download or install Flash player. If those users also have their Safari settings to automatically open safe files which .pkg and .mkpg files are considered to be , an installer will show up on their desktops as if they are legitimately installing Flash. Continuing through the installation process will result in the trojan deactivating certain types of security software Intego specifically noted that the popular Little Snitch would be affected and installing a dynamic loader library dyld with that can auto-launch, allowing it to inject code into applications the user launched. The trojan then reports back to a remote server about the user's MAC address and allows the server to detect whether the Mac in question has been infected or not. The threat is currently marked as low, but Mac users are advised to follow safe security practices don't open files or attachments that you don't remember downloading, and turn off Safari's setting for opening safe files automatically. It's also worth noting that Apple now updates its malware definition file on a daily basis, and has already updated it to address the PDF trojan discussed last week. If you haven't already scoured the Internet for a malicious version of the Flash installer, then it's likely Apple will have added the new malware to the file by the time you run into it. Read the comments on this post
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