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
Flash Poll
Current Issue
Cartoon
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-0607
Published: 2014-07-24
Unrestricted file upload vulnerability in Attachmate Verastream Process Designer (VPD) before R6 SP1 Hotfix 1 allows remote attackers to execute arbitrary code by uploading and launching an executable file.

CVE-2014-1419
Published: 2014-07-24
Race condition in the power policy functions in policy-funcs in acpi-support before 0.142 allows local users to gain privileges via unspecified vectors.

CVE-2014-2360
Published: 2014-07-24
OleumTech WIO DH2 Wireless Gateway and Sensor Wireless I/O Modules allow remote attackers to execute arbitrary code via packets that report a high battery voltage.

CVE-2014-2361
Published: 2014-07-24
OleumTech WIO DH2 Wireless Gateway and Sensor Wireless I/O Modules, when BreeZ is used, do not require authentication for reading the site security key, which allows physically proximate attackers to spoof communication by obtaining this key after use of direct hardware access or manual-setup mode.

CVE-2014-2362
Published: 2014-07-24
OleumTech WIO DH2 Wireless Gateway and Sensor Wireless I/O Modules rely exclusively on a time value for entropy in key generation, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by predicting the time of project creation.

Best of the Web
Dark Reading Radio
Archived Dark Reading Radio
Sara Peters hosts a conversation on Botnets and those who fight them.