Free security tool detects banking malware

Security company Fitsec says its free DeBank tool nearly always spots variants of SpyEye, Zeus and other nasty malware

A Finnish penetration testing company has released a free tool it says can detect all variants of five major families of malicious software that steal online banking credentials.

The tool, called Debank, was built by Finnish penetration testing company Fitsec, which has used the tool to scan its customers' machines, said company founder Toni Koivunen.

The tool works by scanning a computer's process memory, Koivunen said. Most malicious software these days is "packed," or compressed, before it is distributed. That can fool antivirus programs, since the malware can appear to be a different program each time it is repacked.

Koivunen said antivirus programs often use heuristics as an alternative way to detect malware aside from traditional signatures, but that method is not always as successful as a full memory sweep.

Debank looks at the program after it has been executed on a computer. Malware authors rarely change the core code of the program, which is what Debank analyzes.

Koivunen said Debank can detect nearly all variants of SpyEye, Zeus, CarBerp, Gozi and Patcher, five well-known banking malware programs. The malware has to be running for Debank to detect it and the tool only works on computers running Windows, he said.

Debank was able to detect more than 200 variants of Patcher after FitSec found a part of its code common to all variants. FitSec has also tested it against hundreds of variants of SpyEye, a particularly advanced piece of code that operates as part of a botnet. It can harvest credentials for online accounts and also initiate transactions even while a person is logged into their account.

Fitsec decided to just give the tool away and has made it available for download on their blog. "We had no reason to start charging for it," Koivunen said. "Basically, we hate malware."

Send news tips and comments to jeremy_kirk@idg.com

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 fraudmalwareintrusionExploits / vulnerabilitiesFitsec

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

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Tom Pope

Dynabook Portégé X30L-G

Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.

Tom Sellers

MSI P65

This smart laptop was enjoyable to use and great to work on – creating content was super simple.

Lolita Wang

MSI GT76

It really doesn’t get more “gaming laptop” than this.

Jack Jeffries

MSI GS75

As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr

MSI PS63

The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Featured Content

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?