Yahoo!'s ad network is not just a simple advertisement but a "guidance advertisement to malware" to be distributed

ByScott Schiller

Yahoo! It was revealed that the advertisement distribution network was used as a malicious attacker for "to infect many people with malware".

Hackers use Yahoo ad network to spread malware to hundreds of millions of internet users
http://www.ibtimes.co.uk/hackers-use-yahoo-ad-network-spread-malware-hundreds-millions-internet-users-1513853

Breach Of The Week - Yahoo! Ad Network Serves Up More Than Just Ads
https://www.menlosecurity.com/blog/breach-of-the-week-yahoo-ad-network


Yahoo! Attacker Using Yahoo! Advertisement Distribution Network It was revealed that it had served as a link to portal sites such as sports and finance possessed, and distributed advertisements linking fake websites. When clicking on this fake advertisement, computer access is restricted until paying ransomRansomwareIt seems that it will be blown to a website that is infected with.

According to a survey report, this attack is called "Angler Exploit Kit" which exploits the vulnerability of FlashExploit kitIt is based on it. Yahoo! Yahoo! via ad network We deliver advertisements with wording that leads to related portal sites, users clicking on the link go to the site prepared by the attacker, infected with the rantamware like "CryptoWall" or "CryptoLocker" It is said that. This advertisement began to be delivered on July 28th, the first thing I discovered wasMalwarebytesHe is a security researcher.

Although the scale of damage is currently unknown, Yahoo! The number of Internet users accessing related websites is estimated to exceed 6.9 billion people in a month.

Security software developmentMenlo SecurityAs a countermeasure, "Make Flash unusable" "MS Isolation PlatformWe separate the PC from the traffic on the web by using, for example, "Continue browsing while praying not to infect malware."


In the past, there was a situation in which malware was transmitted via Yahoo! advertisement.

Malware sent from Yahoo! advertisement infected thousands of people - GIGAZINE