SpyEye malware borrows Zeus trick to mask fraud

One of the most powerful banking trojans has an additional tricky feature, according to Trusteer

A powerful bank-fraud software program, SpyEye, has been seen with a feature designed to keep victims in the dark long after fraud has taken place, according to security vendor Trusteer.

SpyEye is notable for its ability to inject new fields into a Web page, a technique called HTML injection, which can ask banking customers for sensitive information they normally would not be asked. The requested data can include logins and passwords or a debit card number. It can also use HTML injection to hide fraudulent transfers of money out of an account by displaying an inaccurate bank balance.

Trusteer noticed that SpyEye also hides fraudulent transactions even after a person has logged out and logged back into their account. The latest feature is designed with the same goal of keeping users unaware of fraud. The next time users log into their bank accounts, SpyEye will check its records to see what fraudulent transactions were made with the account, then simply delete them from the Web page, said Amit Klein, Trusteer's CEO. The account balance is also altered.

It appears that SpyEye has borrowed more from Zeus, a famous piece of banking malware that is now commonly available and considered the parent of SpyEye. The two pieces of malware were competitors, but in 2010 merged. Zeus also has the capability to hide its fraudulent transactions from victims.

"Zeus uses the stored balance details to inject into the same page at a later time to persistently hide the fact that money was fraudulently transferred from the user's account," according to a September 2011 report by Ryan Sherstobitoff, an independent security researcher, in the Information Systems Security Association Journal.

Trusteer has seen the technique used when a fraudster uses SpyEye to capture a person's debit card details. When those details are obtained, the fraudster conducts a purchase over the Web or phone, and SpyEye masks the transaction, Klein said. It does not affect, however, the bank's ability to see the fraud, he said.

Send news tips and comments to jeremy_kirk@idg.com

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
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

Brand Post

PC World Evaluation Team Review - MSI GT75 TITAN

"I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it."

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Luke Hill

MSI GT75 TITAN

I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Laura Johnston

MSI GS65 Stealth Thin

If you can afford the price tag, it is well worth the money. It out performs any other laptop I have tried for gaming, and the transportable design and incredible display also make it ideal for work.

Andrew Teoh

Brother MFC-L9570CDW Multifunction Printer

Touch screen visibility and operation was great and easy to navigate. Each menu and sub-menu was in an understandable order and category

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?