Menu
'Dridex' malware revives Microsoft Word macro attacks

'Dridex' malware revives Microsoft Word macro attacks

Macro attacks fell out of favor years ago but are coming back, Trend Micro said

Trend Micro said it has seen a banking trojan, Dridex, use malicious macros inside Microsoft Word documents to try to install itself on computers.

Trend Micro said it has seen a banking trojan, Dridex, use malicious macros inside Microsoft Word documents to try to install itself on computers.

A recent piece of malware that aims to steal your online banking credentials revives a decade-old technique to install itself on your PC.

Called Dridex, the malware tries to steal your data when you log into an online bank account by creating HTML fields that ask you to enter additional information like your social security number. Thats not unusual in itself: Dridex is the successor to a similar piece of malware called Cridex which also targets your bank account.

Whats different is how Dridex tries to infect your computer in the first place. It's delivered in the form of a macro, buried in a Microsoft Word document in a spam email message.

Cybercriminals started using macros more than a decade ago but they fell out of favor after Microsoft strengthened its security defenses against them. But some hackers are apparently trying them again.

Most PCs disable macros from running by default. But if the malicious Word file is opened, it advises users to enable macros, and if they do, Dridex starts downloading to the PC, wrote Rhena Inocencio, a threat response engineer, on Trend's blog on Wednesday.

"The move to macros could be seen as one way of ensuring a higher chance of successful attacks," she wrote. "If the macro feature was already enabled prior to the attack, the attack commences without any additional requirements. Otherwise, the attack must use a strong social engineering lure in order to convince the user to enable the feature."

Once installed on a computer, the malware is programmed to jump into action when it sees a person visits one of a long list of banks, including Bank of Scotland, Lloyd's Bank, Danske Bank, Barclays, Kasikorn Bank, Santander and Triodos, she wrote.

The spam messages for Dridex came mostly from Vietnam, India, Taiwan, South Korea and China, while the top three countries infected with it are Australia, the U.K. and the U.S.

A Switzerland-based computer security project that has for years tracked command-and-control servers for some of the more infamous banking malware program such as Zeus is now also tracking Dridex's command-and-control servers.

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


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.

Tags malwaretrend micro

Featured

Slideshows

The making of an MSSP: a blueprint for growth in NZ

The making of an MSSP: a blueprint for growth in NZ

Partners are actively building out security practices and services to match, yet remain challenged by a lack of guidance in the market. This exclusive Reseller News Roundtable - in association with Sophos - assessed the making of an MSSP, outlining the blueprint for growth and how partners can differentiate in New Zealand.

The making of an MSSP: a blueprint for growth in NZ
Reseller News Platinum Club celebrates leading partners in 2018

Reseller News Platinum Club celebrates leading partners in 2018

The leading players of the New Zealand channel came together to celebrate a year of achievement at the inaugural Reseller News Platinum Club lunch in Auckland. Following the Reseller News Innovation Awards, Platinum Club provides a platform to showcase the top performing partners and start-ups of the past 12 months, with more than ​​50 organisations in the spotlight.​​​

Reseller News Platinum Club celebrates leading partners in 2018
Meet the top performing HP partners in NZ

Meet the top performing HP partners in NZ

HP has honoured its leading partners in New Zealand during 2018, following 12 months of growth through the local channel. Unveiled during the fourth running of the ceremony in Auckland, the awards recognise and celebrate excellence, growth, consistency and engagement of standout Kiwi partners.

Meet the top performing HP partners in NZ
Show Comments