View all newsletters
Receive our newsletter - data, insights and analysis delivered to you

Here’s how to rescue your ransomed files from CryptoLocker

This free tool and key will unlock your files.

By Jimmy Nicholls

CryptoLocker victims will now be able to save their encrypted files following the launch of a free service by security firms FireEye and Fox-IT.

Users can access a private decryption key by uploading an affected file to DecryptCryptoLocker, which is then used with software from the site to unlock files.

Darien Kindlund, director of threat intelligence at FireEye, said: "No matter the type of cyber breach that a business is impacted by, it is our goal to resolve them and get organizations back to normal operations as quickly as possible."

A form of ransomware, CryptoLocker first started infecting computers in September of last year, reaching a peak monthly infection rate of 155,000 the following month, according to Fox-IT.

Overall the virus is thought to have affected more than half a million machines, with English speaking countries the prime target.

Michael Sandee, principal security expert at Fox-IT, said: "In the end, 1.3% of victims paid a CryptoLocker ransom, therefore, a large amount of victims likely permanently lost files due to this attack."

The virus was distributed through the GameOver Zeus botnet that was taken down by international police for two weeks this June.

Content from our partners
Rethinking cloud: challenging assumptions, learning lessons
DTX Manchester welcomes leading tech talent from across the region and beyond
The hidden complexities of deploying AI in your business

Following the disruption the Federal Bureau of Investigation (FBI) claimed that the ransomware had been neutralised, a statement disputed by security firm Webroot, which said similar malware was still in circulation online.

Websites in our network
Select and enter your corporate email address Tech Monitor's research, insight and analysis examines the frontiers of digital transformation to help tech leaders navigate the future. Our Changelog newsletter delivers our best work to your inbox every week.
  • CIO
  • CTO
  • CISO
  • CSO
  • CFO
  • CDO
  • CEO
  • Architect Founder
  • MD
  • Director
  • Manager
  • Other
Visit our privacy policy for more information about our services, how Progressive Media Investments may use, process and share your personal data, including information on your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.
THANK YOU