Mac Trojan.Yontoo.1 & Fix Now Available

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Every computer user knows how dangerous viruses and Trojans are and how crucial it is to keep these programs from getting into our computer systems. Unfortunately, hackers are always looking for ways to infect systems. They found a new way recently with Trojan.Yontoo.1 which was unleashed several days ago. 

According to Dr. Web, the premier Russian antivirus company, this latest malware is the most popular among the other adware Trojans that are circulating the Web. The software installs an adware plug-in that pushes ads on Web pages that people are browsing, earning money for the malware designer. The Trojan.Yontoo.1 has been designed to be inconspicuous and can be downloaded several ways. One of the easiest and most effective ways that the malware can be installed is via movie trailers that have been made specifically for that purpose. The user would see a prompt for a plug-in installation that when clicked on, redirects to another page where the Trojan is consequently downloaded. Aside from that, the malware can also be disguised as a download accelerator, a media player or video quality enhancement software. It affects browsers like Chrome, Firefox and Safari, making it more dangerous. Plus, once the Yontoo plug-in is launched, it starts transmitting information about the pages the computer user visits and starts embedding third-party code on the visited pages. 

Fortunately, Apple has already come up with a fix to combat this malware. The company has already added definitions for the Trojan.Yontoo.1 to its Xprotect.plist. Hopefully, that’s enough to stop the malware in its tracks and prevent its designer from profiting from it.

About Faisal Ebrahim

Tech enthusiast, IT & Cybersecurity consultant & Sales manager. I'm passionate about staying ahead of the curve on emerging technologies, including EVs, AI, robotics, and the metaverse. For over 15 years, I've explored and shared these innovations on my blog,

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