Risk
7/8/2008
01:37 PM
Connect Directly
Google+
LinkedIn
Twitter
RSS
E-Mail
50%
50%

Google's Gmail Blocks Phishers Sending Forged eBay, PayPal E-Mail

The free e-mail service says Gmail users who receive mail from the two heavily phished domains can feel confident that the messages are authentic.

Having just added account activity monitoring to Gmail and released a Web app security assessment tool called ratproxy, Google is adding yet another security offering: phishing protection.

Gmail already tries to flag phishing messages. But now the free e-mail service has begun using DomainKeys and DomainKeys Identified Mail (DKIM), related e-mail authentication protocols, to detect phishing attempts in e-mail messages that purport to come from eBay and PayPal, two of the most heavily phished domains.

"Now any e-mail that claims to come from 'paypal.com' or 'ebay.com' (and their international versions) is authenticated by Gmail and -- here comes the important part -- rejected if it fails to verify as actually coming from PayPal or eBay," explained Google engineer Brad Taylor in a blog post. "That's right: You won't even see the phishing message in your spam folder. Gmail just won't accept it at all. Conversely, if you get a message in Gmail where the 'From' says '@paypal.com' or '@ebay.com,' then you'll know it actually came from PayPal or eBay. It's e-mail the way it should be."

DomainKeys was developed by Yahoo and has since been adopted by other Internet companies. It also spawned DKIM, a related standard. It appends a cryptographic signature to e-mail messages that the receiving server can use to authenticate the purported domain of origin.

As part of its efforts to protect Internet users, Google also publishes a blacklist of known phishing sites. This blacklist informs the anti-phishing features in Firefox and Google Desktop. Google makes this list available for other applications through its Safe Browsing API.

Gmail's use of DomainKeys will be able to block messages that pretend to come from eBay or PayPal. It won't help much against phishers who are communicating through hijacked eBay accounts. In such cases, the recipient has to hope that any malicious URLs in the message are detected using Google's blacklist.

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Flash Poll
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2015-3966
Published: 2015-08-30
The IPsec SA establishment process on Innominate mGuard devices with firmware 8.x before 8.1.7 allows remote authenticated users to cause a denial of service (VPN service restart) by leveraging a peer relationship to send a crafted configuration with compression.

CVE-2015-4555
Published: 2015-08-30
Buffer overflow in the HTTP administrative interface in TIBCO Rendezvous before 8.4.4, Rendezvous Network Server before 1.1.1, Substation ES before 2.9.0, and Messaging Appliance before 8.7.2 allows remote attackers to cause a denial of service or possibly execute arbitrary code via unspecified vect...

CVE-2015-5698
Published: 2015-08-30
Cross-site request forgery (CSRF) vulnerability in the web server on Siemens SIMATIC S7-1200 CPU devices with firmware before 4.1.3 allows remote attackers to hijack the authentication of unspecified victims via unknown vectors.

CVE-2015-4497
Published: 2015-08-29
Use-after-free vulnerability in the CanvasRenderingContext2D implementation in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to execute arbitrary code by leveraging improper interaction between resize events and changes to Cascading Style Sheets (CSS) token...

CVE-2015-4498
Published: 2015-08-29
The add-on installation feature in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to bypass an intended user-confirmation requirement by constructing a crafted data: URL and triggering navigation to an arbitrary http: or https: URL at a certain early point i...

Dark Reading Radio
Archived Dark Reading Radio
Another Black Hat is in the books and Dark Reading was there. Join the editors as they share their top stories, biggest lessons, and best conversations from the premier security conference.