Source code for tiny 'Tinba' banking malware leaked

The code has appeared in an underground forum, according to Denmark-based security company CSIS

The source code for an impressively small type of banking malware called Tinba has been leaked on an underground forum, according to CSIS Security Group.

The source code for an impressively small type of banking malware called Tinba has been leaked on an underground forum, according to CSIS Security Group.

The source code for an impressively small but capable malware program that targets online bank accounts has been leaked, according to CSIS Security Group of Denmark.

The program, known as "Tinba" or "Zusy", was discovered around mid-2012 and infected tens of thousands of computers in Turkey. It is notable for having a very small code base - just 20K - but capabilities similar to malware much larger in size.

Last week, CSIS found a post in an underground forum that included source code for Tinba, which turned out to be the same code studied a couple of years ago by the company, wrote Peter Kruse, CTO of CSIS.

The leak of its source code means other cybercriminals could begin using it, as such programs are often only offered for sale in forums. The source code for an online banking malware program called Zeus was leaked in 2011, which opened up its use to a wider range of cybercriminals, CSIS noted.

Although Tinba's source code release is unlikely to have the same impact as Zeus, "making the code public increases the risk of new banker Trojans to arise based partially on Tinba source code," Kruse wrote. The code appears to be from an early version of Tinba.

Kruse wrote that CSIS gave a presentation at a recent conference in Boston that covered Tinba, which described how its analysts believe the original malware code was sold and then improved upon by other developers.

Tinba can interfere with online banking sessions, creating new fields that users must fill out during an online banking session. That information can then be used to compromise their accounts.

In a joint report released in 2012, CSIS and Trend Micro wrote that more than 60,000 computers in Turkey appeared to be infected with Tinba. Tinba appeared to be distributed using Blackhole, a now shuttered exploit kit that probed computers for software vulnerabilities and delivered malware if a computer doesn't have current patches.

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

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags securityCSIS Security Groupmalware

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

Cool Tech

SanDisk MicroSDXC™ for Nintendo® Switch™

Learn more >

Breitling Superocean Heritage Chronographe 44

Learn more >

Toys for Boys

Family Friendly

Panasonic 4K UHD Blu-Ray Player and Full HD Recorder with Netflix - UBT1GL-K

Learn more >

Stocking Stuffer

Razer DeathAdder Expert Ergonomic Gaming Mouse

Learn more >

Christmas Gift Guide

Click for more ›

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

David Coyle

Brother PocketJet PJ-773 A4 Portable Thermal Printer

I rate the printer as a 5 out of 5 stars as it has been able to fit seamlessly into my busy and mobile lifestyle.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?