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.

Slideshows

Top 50 defining moments of the New Zealand channel in 2016

Top 50 defining moments of the New Zealand channel in 2016

Reseller News looks back on a tumultuous 12 months for the New Zealand channel, assessing the fallout from a year of sizeable industry change. Whether it be local or global mergers and acquisitions, distribution deals or job changes, the channel that started the year differs somewhat to the one set to finish it - Reseller News assesses the key moments that made 2016.​

Top 50 defining moments of the New Zealand channel in 2016
​Hewlett Packard Enterprise honours high achieving NZ channel

​Hewlett Packard Enterprise honours high achieving NZ channel

Hewlett Packard Enterprise honoured its top performing Kiwi partners at the second running of its HPE Partner Awards in New Zealand, held at a glitzy ceremony in Auckland. Recognising excellence across eight categories - from distributors to resellers - the tech giant celebrated its first year as a standalone company, following its official split from HP in 2015.

​Hewlett Packard Enterprise honours high achieving NZ channel
Nutanix treats channel partners to Christmas cruise

Nutanix treats channel partners to Christmas cruise

Nutanix recently took to the seas for a Christmas Cruise around Sydney Harbour with its Australia and New Zealand staff, customers and partners to celebrate a stellar year for the vendor. With the sun out, they were all smiles and mingled over drinks and food.

Nutanix treats channel partners to Christmas cruise
Show Comments