Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Threat Intelligence

12/18/2019
11:35 AM
50%
50%

Worried About Magecart? Here's How to Check for It

Researchers share how everyday users can check for malicious code on e-commerce websites.

Magecart mayhem has compromised online shoppers for years, and its activity has ramped up with attacks against Smith & Wesson, Macy's, and, most recently, Rooster Teeth. In a nutshell, attackers inject malicious code onto the checkout page of e-commerce platforms to lift payment data.

Normally, everyday consumers and small businesses learn about these incidents the hard way – after data has already been stolen. Security experts have advised the use of Content Security Policy (CSP) and Sub Resource Integrity (SRI) to prevent Magecart attacks. However, people and organizations with limited resources may not have the means to put these measures in place.

To give these users a Web security edge, Trustwave senior security researcher Michael Yuen today published a blog detailing how they can use a browser to check whether a shopping website is compromised. The process starts by accessing urlscan[.]io and running a public scan for the chosen site. Under "Domain & IP information," they can see IPs and domains of all requests performed on the site.

In an example, Yuen shows what it looks like when a request doesn't come from the same domain as the website, or from Facebook or Google. The "IP Detail" tab shows which domain the request is from; visitors also can see what is loaded on the site by clicking the HTTP tab located on top. When a script file is not loaded from the same domain as other script files, it's "a big red flag." Clicking "Show Response" reveals an obfuscated Magecart script in the suspicious domain.

Yuen also explains how users can look up the exfiltration URL to see where the exfiltrated data is being sent. Read more details in the full blog post here.

Check out The Edge, Dark Reading's new section for features, threat data, and in-depth perspectives. Today's top story: "How to Manage API Security."

Dark Reading's Quick Hits delivers a brief synopsis and summary of the significance of breaking news events. For more information from the original source of the news item, please follow the link provided in this article. View Full Bio
 

Recommended Reading:

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 9/21/2020
Hacking Yourself: Marie Moe and Pacemaker Security
Gary McGraw Ph.D., Co-founder Berryville Institute of Machine Learning,  9/21/2020
Startup Aims to Map and Track All the IT and Security Things
Kelly Jackson Higgins, Executive Editor at Dark Reading,  9/22/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Special Report: Computing's New Normal
This special report examines how IT security organizations have adapted to the "new normal" of computing and what the long-term effects will be. Read it and get a unique set of perspectives on issues ranging from new threats & vulnerabilities as a result of remote working to how enterprise security strategy will be affected long term.
Flash Poll
How IT Security Organizations are Attacking the Cybersecurity Problem
How IT Security Organizations are Attacking the Cybersecurity Problem
The COVID-19 pandemic turned the world -- and enterprise computing -- on end. Here's a look at how cybersecurity teams are retrenching their defense strategies, rebuilding their teams, and selecting new technologies to stop the oncoming rise of online attacks.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2015-4719
PUBLISHED: 2020-09-24
The client API authentication mechanism in Pexip Infinity before 10 allows remote attackers to gain privileges via a crafted request.
CVE-2020-15604
PUBLISHED: 2020-09-24
An incomplete SSL server certification validation vulnerability in the Trend Micro Security 2019 (v15) consumer family of products could allow an attacker to combine this vulnerability with another attack to trick an affected client into downloading a malicious update instead of the expected one. CW...
CVE-2020-24560
PUBLISHED: 2020-09-24
An incomplete SSL server certification validation vulnerability in the Trend Micro Security 2019 (v15) consumer family of products could allow an attacker to combine this vulnerability with another attack to trick an affected client into downloading a malicious update instead of the expected one. CW...
CVE-2020-25596
PUBLISHED: 2020-09-23
An issue was discovered in Xen through 4.14.x. x86 PV guest kernels can experience denial of service via SYSENTER. The SYSENTER instruction leaves various state sanitization activities to software. One of Xen's sanitization paths injects a #GP fault, and incorrectly delivers it twice to the guest. T...
CVE-2020-25597
PUBLISHED: 2020-09-23
An issue was discovered in Xen through 4.14.x. There is mishandling of the constraint that once-valid event channels may not turn invalid. Logic in the handling of event channel operations in Xen assumes that an event channel, once valid, will not become invalid over the life time of a guest. Howeve...