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Malware

Flashback Wrap Up

Six months ago, Flashback was attracting a lot of attention from researchers and media due to its wide spread and interesting features. Since then, we have witnessed its operator abandoning control of the botnet by shutting down its latest command and control server. This happened in May this year. The number of infected systems has

Flashback Wrap Up

Six months ago, Flashback was attracting a lot of attention from researchers and media due to its wide spread and interesting features. Since then, we have witnessed its operator abandoning control of the botnet by shutting down its latest command and control server. This happened in May this year. The number of infected systems has

Quervar Induc.C reincarnate?

Win32/Quervar (a.k.a Dorifel, XDocCrypt) is a virus family that has been in the news recently, especially in the Netherlands. It has been reported to be causing havoc on computers of several notable Dutch institutions. In our analysis, we provide additional technical details about the workings of the virus and compare it to another virus, the

Win32/Gataka: a banking Trojan ready to take off?

We have been following the development of the Win32/Gataka banking Trojan for several months and can now share some details of its operation which includes facilitating fraudulent bank transfers. This first post will highlight some of its key features, while the second will detail several interesting, more technical aspects of this malware. This banking Trojan

11 Tips for protecting your data when you travel

When we relayed the FBI/IC3 warning to travelers about a threat involving hotel Internet service overseas last week it produced a lot of requests for advice on how to respond to the threat. So a few of us researchers at ESET came up with a list of data security tips for travelers. These tips will

King of Spam: Festi botnet analysis

We have just completed fresh analysis of the malicious software known as Win32/Festi. While the "Festi" botnet created with this malware has been in business since the autumn of 2009 we can see that the software is frequently updated, as described in our analysis, and these updates mean Festi continues to be a potent threat

Fighting the OSX/Flashback Hydra

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

Vulnerable WordPress Leads to Security Blog Infection

Even visiting security-oriented websites can sometimes be risky. If you’ve visited the security blog zerosecurity.org this month and you’re also a user of ESET’s security products, you might have encountered an anti-virus alert such as this one: The detection names may vary. Different variants of the following “generic families” were detected on the compromised websites on

Modern viral propagation: Facebook, shocking videos, browser plugins

Fraudsters continue to innovate their scam propagation methods. Again using Facebook and a pretense of a shocking video, they also utilize browser plugins to execute malicious scripts. We also see how the malware scene is intertwined, when the user is directed to a dubious Potentially Unwanted Application. Facebook auto-like scams have been commonplace on the

Windows Phone 8: Security Heaven or Hell?

Introduction Mobile World Congress 2012 is almost upon us, and one of the most hotly-anticipated topics is the next generation of Microsoft’s smartphone operating system Windows Phone 8, which has been kept under wraps far more tightly than its PC counterpart, Windows 8. While Microsoft was an early adopter in the creation of smartphones with