Menu
Dridex banking malware adds a new trick

Dridex banking malware adds a new trick

Dridex is targeting at least 13 British banks

Dridex, the banking malware that won't go away, has been improved upon once again.

IBM's X-Force researchers have found that the latest version of Dridex uses a DNS (Domain Name System) trick to direct victims to fake banking websites.

The technique, known as DNS cache poisoning, involves changing DNS settings to direct someone asking for a legitimate banking website to a fake site.

DNS cache poisoning is a powerful attack. Even if a person types in the correct domain name for a bank, the fake website is still shown in the browser.

"By keeping the victim away from the bank’s site, the fraudster can deceive them into divulging critical authentication codes without the bank knowing that the customer’s session has been compromised," wrote Limor Kessem, a cybersecurity expert with IBM's Trusteer division, in a blog post on Tuesday.

It appears Dridex's operators may have adopted the technique from a different banking trojan called Dyre, Kessem wrote. Dyre used a local proxy to accomplish the redirection, however.

Dridex's operators have created clones of the websites of 13 U.K. banks, which are used in the attacks.

After landing on one of the fake sites, Dridex collects the authentication credentials and two-factor authentication codes. The details are sent to a command-and-control servers and are verified.

If more information is needed from a victim, Dridex can inject new fields into the fake website to ask for more information, Kessem wrote.

"The fraudsters initiate the illicit transaction while the victim is being delayed by the social engineering injections on the fake site," she wrote. "In cases of successful information harvesting, the money is moved from the victim’s account to a mule account."

Dridex has proven to be a resilient foe despite law enforcement action last year by the U.S. and U.K. that took down part of its network.

The U.S. Department of Justice said on Oct. 13 it was seeking the extradition of a 30-year-old Moldovan man, Andrey Ghinkul. Prosecutors allege he used Dridex malware to steal US$10 million from U.S. companies and organizations, according to an indictment.

Security experts noticed that the number of emails with attachments containing Dridex dropped earlier that month, but the activity quickly resumed again. Victims are infected if they open a manipulated Microsoft Office document.

Follow Us

Join the New Zealand Reseller News newsletter!

Error: Please check your email address.

Featured

Slideshows

Arrow exclusively introduces Tenable Network Security to A/NZ channel

Arrow exclusively introduces Tenable Network Security to A/NZ channel

Arrow Electronics introduced Tenable Network Security to local resellers in Sydney last week, officially launching the distributor's latest security partnership across Australia and New Zealand. Representing the first direct distribution agreement locally for Tenable specifically, the deal sees Arrow deliver security solutions directly to mid-market and enterprise channel partners on both sides of the Tasman.

Arrow exclusively introduces Tenable Network Security to A/NZ channel
Examining the changing job scene in the Kiwi channel

Examining the changing job scene in the Kiwi channel

Typically, the New Year brings new opportunities for personnel within the Kiwi channel. 2017 started no differently, with a host of appointments, departures and reshuffles across vendor, distributor and reseller businesses. As a result, the job scene across New Zealand has changed - here’s a run down of who is working where in the year ahead…

Examining the changing job scene in the Kiwi channel
​What are the top 10 tech trends for New Zealand in 2017?

​What are the top 10 tech trends for New Zealand in 2017?

Digital Transformation (DX) has been a critical topic for business over the last few years and IDC is now predicting a step change as DX reaches macroeconomic levels. By 2020 a DX economy will emerge and it will become the core of what New Zealand industries focus on. From the board level through to the C-Suite, Kiwi organisations must be prepared to think and act digital when the DX economy emerges in 2017.

​What are the top 10 tech trends for New Zealand in 2017?
Show Comments