Attacks/Breaches
1/6/2014
01:25 PM
50%
50%

Yahoo Ads Hack Spreads Malware

Millions of users exposed to drive-by malware attacks that targeted Java bugs to install six types of malicious code

Yahoo.com visitors received an unexpected surprise beginning on New Year's Eve: advertisements that targeted their systems with malware.

The malicious advertising campaign was first spotted on Friday by Dutch information security consulting firm Fox-IT, which immediately warned Yahoo. Fox-IT said in a blog post that the attack advertisements -- which were being served by ads.yahoo.com -- used iFrames to hide malicious scripts. If a user clicked on the advertisement, they were redirected to a site that hosted the "Magnitude" exploit kit, which then attempted to exploit any Java vulnerabilities present on their system to install malware.

"The attackers are clearly financially motivated and seem to offer services to other actors," said Fox-IT, noting that the exploit kit behind the attacks dropped six different types of malware, including the Zeus banking Trojan, Dorkbot, and a click-fraud Trojan. The greatest number of users targeted by the malicious advertisements were in Romania (24%), the United Kingdom (23%), and France (20%), according to Fox-IT.

Read the full article here.

Have a comment on this story? Please click "Discuss" below. If you'd like to contact Dark Reading's editors directly, send us a message.

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
ciphercodes
50%
50%
ciphercodes,
User Rank: Apprentice
1/8/2014 | 5:54:36 PM
re: Yahoo Ads Hack Spreads Malware
Websites should implement stricter rules and verifications before allowing random and newly registered ad networks to server ads on their sites. NBC, OOKLA and now YAHOO.
Register for Dark Reading Newsletters
White Papers
Cartoon
Current Issue
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-3586
Published: 2015-04-21
The default configuration for the Command Line Interface in Red Hat Enterprise Application Platform before 6.4.0 and WildFly (formerly JBoss Application Server) uses weak permissions for .jboss-cli-history, which allows local users to obtain sensitive information via unspecified vectors.

CVE-2014-5361
Published: 2015-04-21
Multiple cross-site request forgery (CSRF) vulnerabilities in Landesk Management Suite 9.6 and earlier allow remote attackers to hijack the authentication of administrators for requests that (1) start, (2) stop, or (3) restart services via a request to remote/serverServices.aspx.

CVE-2014-5370
Published: 2015-04-21
Directory traversal vulnerability in the CFChart servlet (com.naryx.tagfusion.cfm.cfchartServlet) in New Atlanta BlueDragon before 7.1.1.18527 allows remote attackers to read or possibly delete arbitrary files via a .. (dot dot) in the QUERY_STRING to cfchart.cfchart.

CVE-2014-8111
Published: 2015-04-21
Apache Tomcat Connectors (mod_jk) before 1.2.41 ignores JkUnmount rules for subtrees of previous JkMount rules, which allows remote attackers to access otherwise restricted artifacts via unspecified vectors.

CVE-2014-8125
Published: 2015-04-21
XML external entity (XXE) vulnerability in Drools and jBPM before 6.2.0 allows remote attackers to read arbitrary files or possibly have other unspecified impact via a crafted BPMN2 file.

Dark Reading Radio
Archived Dark Reading Radio
Join security and risk expert John Pironti and Dark Reading Editor-in-Chief Tim Wilson for a live online discussion of the sea-changing shift in security strategy and the many ways it is affecting IT and business.