Menu
GozNym Trojan turns its sight on business accounts at major US banks

GozNym Trojan turns its sight on business accounts at major US banks

The malware redirects victims to perfect replicas of online banking websites

A hybrid Trojan program created for financial fraud has started redirecting users of four large U.S. banks to rogue websites in order to hijack their accounts.

GozNym is a relatively new threat, first discovered in April, and is based on the Nymaim malware dropper and the Gozi banking Trojan. Like most banking Trojans, GozNym can inject rogue code into banking websites displayed in local browsers in order to steal credentials and other sensitive information.

However, in addition to this old technique, the cybercrime gang behind it has also built the necessary infrastructure to host rogue copies of banking websites, and they've started to redirect victims there.

GozNym used this redirection method two months ago against users of several banking websites from Poland. However, according to researchers from IBM's X-Force team, its authors have recently launched similar attacks against the online business banking services of four large U.S. banks.

First, the Trojan redirects the victim to the fake version of the site hosted on the attackers' infrastructure, and it then temporarily displays a white overlay over the page. This unusual masking trick might be intended to distract the users and to make them believe that the page is harmless.

The fake sites are perfect replicas of the real ones. The malware uses some technical tricks locally to keep the bank's real URL in the address bar and even the SSL certificate.

Once users input their credentials into the fake website, the credentials are tested in real-time against the bank's genuine website. If they work, the attackers initiate fraudulent money transfers out of the victim's account.

"Moreover, the victim is kept on the fake website, where the attacker can push social engineering notifications to them, making them divulge personally identifiable information and two-factor authentication elements," the IBM X-Force researchers said in a blog post.

Despite being new, GozNym is quickly gaining ground in the cybercrime arena, currently ranking fifth for banking Trojan activity in 2016. The IBM researchers expect that after this testing period, its creators will add more U.S. banking websites to the rogue redirection list. The researchers didn't name the original banks targeted.

In addition to the usual security recommendations of keeping software up to date, running an antivirus program, and being wary of email attachments, employees in charge of finances inside companies should try to use dedicated computers to access bank accounts and operate financial transactions. These computers shouldn't be used for other tasks like general browsing and email.


Follow Us

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.

Events

Why experience is the new battleground for partners

Join us for an exclusive webinar, in association with Hewlett Packard Enterprise and Technology Services Industry Association (TSIA) and learn about the latest industry insights and how technology services continue to evolve to deliver differentiated value, and how partners can be successful in 2021 and beyond.

Featured

Slideshows

The Kiwi channel gathers for the 2020 Reseller News Women in ICT Awards

The Kiwi channel gathers for the 2020 Reseller News Women in ICT Awards

Hundreds of leaders from the New Zealand IT industry gathered at the Hilton in Auckland on 17 November to celebrate the finest female talent in the Kiwi channel and recognise the winners of the Reseller News Women in ICT Awards (WIICTA) 2020.

The Kiwi channel gathers for the 2020 Reseller News Women in ICT Awards
Leading female front runners honoured at the 2020 Reseller News Women in ICT Awards

Leading female front runners honoured at the 2020 Reseller News Women in ICT Awards

The leading female front runners of the New Zealand ICT industry joined together for the annual Reseller News Women in ICT Awards event at the Hilton in Auckland, during which hundreds of guests celebrated 13 outstanding individuals who won awards, chosen from more than 50 finalists representing over 30 organisations.

Leading female front runners honoured at the 2020 Reseller News Women in ICT Awards
Channel gathers to celebrate the Reseller News Innovation Awards 2020 winners

Channel gathers to celebrate the Reseller News Innovation Awards 2020 winners

More than 500 channel leaders gathered in Auckland on 21 October at the ​Reseller News Innovation Awards ​2020 to celebrate the achievements of the New Zealand technology industry's top partners, start-ups, vendors, distributors and individuals.

Channel gathers to celebrate the Reseller News Innovation Awards 2020 winners
Show Comments