Skip to main content

Security firm traces Target malware to Russia

By Marie-Louise Gumuchian and David Goldman, CNN
updated 5:50 AM EST, Tue January 21, 2014
STORY HIGHLIGHTS
  • NEW: IntelCrawler updates report, says Russian teenager not solely responsible for attack
  • Target breach imperiled credit card numbers, personal info of millions
  • Teen reportedly shared malware with other hackers
  • Experts warn other breaches could happen

(CNN) -- A security firm that had pointed the finger at a 17-year-old Russian last week updated its report Monday to identify a different Russian resident as being responsible for writing the malware used in an attack compromised the credit card numbers and other personal information of up to 110 million Target customers.

In a statement published Friday, security firm IntelCrawler said the breach was the result of malware that infected Target's payment system and possibly compromised the systems of other retailers. Neiman Marcus reported a similar security breach this month.

The 17-year old does not appear to be solely responsible for the attack. Independent security researcher Brian Krebs earlier reported that other code in the Target hack pointed to a Ukraine resident.

Homeland security warns retailers

Target breach may be tied to Russian mob
Target 'grinched' for Christmas

Experts say the author may have shared it with others.

"Well, we should be worried. One of the things the hackers do is take the malware as it's called. Once it's identified, then the security community can rally around it and put controls in place. But the problem is, the hackers know that. And they manipulate or mutate this malware, and then reuse it," SecureState CEO Ken Stasiak said.

"We believe that he originated the code, or the malware everybody's calling it now. And was able to put it up on the Internet for download for other hackers to then take, and potentially use it for malicious harm. And that's what we believe happened to Target and Neiman Marcus."

The first sample of the malware was created in March and since then, more than 40 versions have been sold around the world, IntelCrawler said. It first infected retailers' systems in Australia, Canada and the United States.

Hack is a wake-up call on privacy

Andrew Komarov, IntelCrawler CEO, said most of the victims are department stores and said more BlackPOS infections as well as new breaches could appear soon. Retailers should be prepared.

"The numbers could be staggering, really, because what the retailers are looking at are potential class action lawsuits," CNN legal analyst Paul Callan said.

"Let's say hypothetically, a retailer has 40 million transactions by 40 million different customers. All 40 million may have been damaged in some way, and under law they can all be joined together in a class action lawsuit."

Millions getting new cards after hack

CNN's David Goldman and George Howell contributed to this report.

ADVERTISEMENT
Part of complete coverage on
updated 8:25 AM EDT, Thu October 16, 2014
Action needs to be taken immediately before affected states potentially collapse, says campaigner Bob Geldof.
updated 12:29 AM EDT, Thu October 16, 2014
Thomas Malthus famously predicted that rising populations would create a food crunch: Could this be true?
updated 6:33 AM EDT, Sat October 18, 2014
From "Sick Man of Europe" to the world's fourth largest economy.
updated 1:06 PM EDT, Fri October 17, 2014
Each day, CNN brings you an image capturing a moment to remember, defining the present in our changing world.
updated 7:18 PM EDT, Wed October 15, 2014
Australian PM Tony Abbott vows to "shirt-front" Russia's Putin over the MH17 disaster.
updated 7:27 PM EDT, Wed October 15, 2014
Serbia and Albania try to play but the major game is called off after a drone flying a political flag enters the stadium.
updated 7:36 AM EDT, Tue October 14, 2014
George Clooney's new wife, is now Amal Clooney, raising the issue of married names.
updated 1:57 PM EDT, Tue October 14, 2014
The mysterious unmanned X-37B space plane returns to Earth after more than two years in space. But the U.S. Air force isn't saying much.
updated 12:55 PM EDT, Tue October 14, 2014
Public health experts are asking whether the CDC is getting the wrong message out.
updated 11:41 AM EDT, Mon October 13, 2014
It's no longer necessary to launch your startup in Silicon Valley -- thanks to the internet, you can do it anywhere.
updated 5:00 AM EDT, Wed October 8, 2014
From a "democracy wall" to a towering "Umbrella man" statue, see the best art from the massive protests in Hong Kong.
Browse through images from CNN teams around the world that you don't always see on news reports.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT