Malware delivered to thousands via Yahoo.com ads
Yahoo has removed an ad after malware delivery was found by security firm Fox-IT
IDG News Service - Malicious ads served through Yahoo's ad network delivered malware to thousands of site visitors, according to researchers at Fox-IT, but Yahoo subsequently blocked the attack.
Fox-IT's post said that visitors who saw the ads in their browsers were redirected to a "Magnitude" exploit kit. "This exploit kit exploits vulnerabilities in Java and installs a host of different malware," Fox-IT said, including ZeuS, Andromeda, Dorkbot/Ngrbot, ad-clicking malware,Tinba/Zusy and Necurs. The security company's investigation dated the start of the infection to December 30 but it said it might have begun earlier.
Yahoo confirmed the infection and said it had taken action to remove it. "At Yahoo, we take the safety and privacy of our users seriously. We recently identified an ad designed to spread malware to some of our users. We immediately removed it and will continue to monitor and block any ads being used for this activity," a spokeswoman said via email on Saturday.
Using a sample of traffic and a typical infection rate of 9 percent, Fox-IT said that the malware infected about 27,000 clients very hour. The countries whose users were most affected were in Romania, the U.K. and France, according to Fox-IT.
- 15 Non-Certified IT Skills Growing in Demand
- How 19 Tech Titans Target Healthcare
- Twitter Suffering From Growing Pains (and Facebook Comparisons)
- Agile Comes to Data Integration
- Slideshow: 7 security mistakes people make with their mobile device
- iOS vs. Android: Which is more secure?
- 11 sure signs you've been hacked
- The Threat Landscape Hardly a day goes by without the discovery of a new cyberthreat somewhere in the world! But how do you keep up with...
- Security for Virtualization In the rush to implement virtualization, security has become second. So while the business benefits are clear, the risks are less well documented...
- The Critical Role of Support in Your Enterprise Mobility Management Strategy Most business leaders underestimate the importance of tech support when they choose an EMM solution. Here's what to put on your checklist.
- Separating Work and Personal at the Platform Level: How BlackBerry Balance Works BlackBerry® Balance™ separates work from personal on the same mobile device, right at a platform level. Find out how it can work for...
- Getting Ready for BlackBerry Enterprise Service 10.2 Find out how BlackBerry® Enterprise Service 10 helps organizations address the full spectrum of EMM challenges, while balancing the needs of both the...
- Containerization Options: How to Choose the Best DLP Solution for Your Organization This webcast outlines a framework for making the right choice when it comes to containerization approaches, along with the pros and cons of... All Malware and Vulnerabilities White Papers | Webcasts