Dropbox used for convincing phishing attack

Dropbox was quick to remove the bogus login page, Symantec said

Once a victim supplied their login credentials, the bogus page redirected to Dropbox's real login page, Symantec said.

Once a victim supplied their login credentials, the bogus page redirected to Dropbox's real login page, Symantec said.

Dropbox's file storage service was used for a tricky phishing attack, although the service was quick to shut down it down, according to Symantec.

The security vendor said it detected a batch of phishing emails advising recipients that they've been sent a large file and included a link to Dropbox-hosted page.

"The email claims the document can be viewed by clicking on the link included in the message," wrote Nick Johnston of Symantec in a blog post. "However, the link opens a fake Dropbox login page, hosted on Dropbox itself."

By hosting the fake login page on Dropbox, the scammers gain some benefits over hosting it on a random, strange-looking domain name. The phishing page is contained within Dropbox's user content domain, similar to shared photos or files, Johnston wrote.

Most of the phishing page's elements are also served over SSL (Secure Sockets Layer), which encrypts communication between a client and a server and makes the ruse look more convincing. Older browsers may not prompt a warning if SSL isn't used for the entire page, he wrote.

"The prominence of the warning varies from browser to browser; some browsers simply change the padlock symbol shown in the address bar, whereas others include a small banner at the top of the page," Johnston wrote. "Users may not notice or understand these security warnings or the associated implications."

Phishing attacks have often been staged on trusted domains for file storage and sharing, such as on Google's Docs and Drive services.

The phishing page, which was quickly taken down by Dropbox, asks for a user's Dropbox credentials but also includes logos for popular webmail services. It purports to allow people to use the same webmail credentials to log into Dropbox.

Once a set of credentials has been collected, a PHP script within phishing page simply redirects to Dropbox's actual login page, Johnston wrote.

Send news tips and comments to jeremy_kirk@idg.com. Follow me on Twitter: @jeremy_kirk

Join the Good Gear Guide newsletter!

Error: Please check your email address.

Tags dropboxsymantecsecurityfraud

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Jeremy Kirk

IDG News Service
Show Comments

Most Popular Reviews

Latest News Articles

Resources

PCW Evaluation Team

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Aysha Strobbe

Windows 10 / HP Spectre x360

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga 910

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?