ESET Threat Blog

The biggest Mac botnet ever encountered, the OSX/Flashback botnet, is being hit hard. On April 12th, Apple released a third Java update since the Flashback malicious code outbreak. This update includes a new tool called MRT (Malware Removal Tool) which allows Apple to quickly push malware removal code to their user base. The first mission … Read More…

If you are a Mac user and you have Java installed on your Mac, then right now would be a good time to run Software Update… from the Apple menu to make sure you have installed the latest Java for Mac OS X update. Installing this update will help protect your Mac from a malicious … Read More…

This week we have detected another interesting attack vector. This time cybercriminals are using an interesting technique for hiding malicious Javascripts and employ implicit iFrame injection. At this moment we are tracking hundreds of infected legitimate web sites in the Russian internet segment using this technique of infection. Let’s analyze this attack method step by … Read More…

This article was written in collaboration with my colleague Jean-Ian Boutin.
The Wigon botnet (also known as Cutwail) is being used in a massive spam campaign. A multitude of ruses are used to get the user to click on a link: fake LinkedIn or Facebook notifications, free Windows licenses, fake deliveries etc. The links are pointing … Read More…

Brian Krebs thinks so:

Java is now among the most frequently-attacked programs, and appears to be fast replacing Adobe as the target of choice for automated exploit tools used by criminals.

Of the systems which I personally administrate as the ‘Chief Family Technology Officer’, the Java updates constantly annoy and confuse my mom who uses Vista… Vista … Read More…

Further to Pierre-Marc's blog yesterday about in-the-wild exploitation of the Java Development Kit vulnerability publicised by Tavis Ormandy, David Kennedy has brought to our attention a comprehensive article on the same topic published yesterday by FireEye's Atif Mushtaq.  You may remember that Atif exchanged thoughts and info with us a while ago in relation to … Read More…