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
Dark Reading December Tech Digest
Experts weigh in on the pros and cons of end-user security training.
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-5395
Published: 2014-11-21
Multiple cross-site request forgery (CSRF) vulnerabilities in Huawei HiLink E3276 and E3236 TCPU before V200R002B470D13SP00C00 and WebUI before V100R007B100D03SP01C03, E5180s-22 before 21.270.21.00.00, and E586Bs-2 before 21.322.10.00.889 allow remote attackers to hijack the authentication of users ...

CVE-2014-7137
Published: 2014-11-21
Multiple SQL injection vulnerabilities in Dolibarr ERP/CRM before 3.6.1 allow remote authenticated users to execute arbitrary SQL commands via the (1) contactid parameter in an addcontact action, (2) ligne parameter in a swapstatut action, or (3) project_ref parameter to projet/tasks/contact.php; (4...

CVE-2014-7871
Published: 2014-11-21
SQL injection vulnerability in Open-Xchange (OX) AppSuite before 7.4.2-rev36 and 7.6.x before 7.6.0-rev23 allows remote authenticated users to execute arbitrary SQL commands via a crafted jslob API call.

CVE-2014-8090
Published: 2014-11-21
The REXML parser in Ruby 1.9.x before 1.9.3 patchlevel 551, 2.0.x before 2.0.0 patchlevel 598, and 2.1.x before 2.1.5 allows remote attackers to cause a denial of service (CPU and memory consumption) a crafted XML document containing an empty string in an entity that is used in a large number of nes...

CVE-2014-8469
Published: 2014-11-21
Cross-site scripting (XSS) vulnerability in Guests/Boots in AdminCP in Moxi9 PHPFox before 4 Beta allows remote attackers to inject arbitrary web script or HTML via the User-Agent header.

Best of the Web
Dark Reading Radio
Archived Dark Reading Radio
Now that the holiday season is about to begin both online and in stores, will this be yet another season of nonstop gifting to cybercriminals?