1 min read

New Type of DDoS Attack Uses Mobile Ad Networks

Liviu ARSENE

September 28, 2015

New Type of DDoS Attack Uses Mobile Ad Networks

A new type of distributed denial of service attack has recently been reported by CloudFlare, involving the use of mobile advertisement networks and funneling traffic from real users.

Although the reported attack only lasted a couple of hours, the company reported more than 275,000 HTTP requests per second, peaking at 4.5 billion requests during a single day against a targeted domain. According to investigations conducted by the company, legitimate users browsing the web were served ads via an iframe which requested the ad’s content from the server of the attacker.

Source: CloudFlare

In this case, the ad network was used to deliver a malicious ad containing a piece of JavaScript code that launched an Ajax request aimed at a targeted website, by leveraging legitimate traffic coming from unsuspecting victims.

Further investigation into the attack logs has revealed not only that 99.8 percent, of the attack originated from China, but also that 80 percent of requests came from mobile devices. Analyzing the user agent from all collected logs revealed that 72 percent of the flooding traffic originated from mobile devices, 23 percent originated from desktops, and 5 percent from tables.

“There is no way to know for sure why so many mobile devices visited the attack page, but the most plausible distribution vector seems to be an ad network,” wrote Marek Majkowski. “It seems probable that users were served advertisements containing the malicious JavaScript. This ads were likely showed in iframes in mobile apps, or mobile browsers to people casually browsing the internet.”

tags


Author



Right now

Top posts

Watch Out for These Ongoing Bank of America Phishing Campaigns Targeting Customers in the US

Watch Out for These Ongoing Bank of America Phishing Campaigns Targeting Customers in the US

July 16, 2021

3 min read
How to protect yourself against cyberstalking

How to protect yourself against cyberstalking

July 06, 2021

2 min read
The Top Five Security Risks Smartphone Users Face Today

The Top Five Security Risks Smartphone Users Face Today

July 02, 2021

4 min read
Phishing Alert: Scammers Use Fake SharePoint and DocuSign Messages to Steal Users’ Login Credentials

Phishing Alert: Scammers Use Fake SharePoint and DocuSign Messages to Steal Users’ Login Credentials

July 02, 2021

3 min read
Your Doxxing Dossier Will Keep Growing Thicker Until You See the Danger

Your Doxxing Dossier Will Keep Growing Thicker Until You See the Danger

June 30, 2021

2 min read
Mobile security threats: reality or myth?

Mobile security threats: reality or myth?

June 13, 2021

3 min read

FOLLOW US ON

SOCIAL MEDIA


You might also like

Fraud Family cybercrime ring under the spotlight as arrests made in the Netherlands Fraud Family cybercrime ring under the spotlight as arrests made in the Netherlands
Graham CLULEY

July 23, 2021

3 min read
Homoglyph domains used in BEC scams shut down by Microsoft Homoglyph domains used in BEC scams shut down by Microsoft
Graham CLULEY

July 22, 2021

3 min read
China Sets Up New Worrying Vulnerability Disclosure Rules China Sets Up New Worrying Vulnerability Disclosure Rules
Silviu STAHIE

July 20, 2021

1 min read