File encryption blackmail scam returns

Posted by   Virus Bulletin on   Jun 5, 2008

Kaspersky warns of new and nasty data-ransom trojan.

Malware analysts at Kaspersky Lab have warned of the return of the 'Gpcoder' trojan, a nasty piece of 'ransomware' which encrypts victims' files and demands money for the decryption key.

Previous outbreaks of the scam, seen sporadically since the first appearance of such nasties in 2004, have all been foiled by security experts, including Kaspersky's remarkable cracking of a 660-bit encryption key in 2006. The latest variant includes fixes for several flaws spotted in previous waves, and also 1024-bit encryption techniques, which have yet to be broken.

Kaspersky has received reports of infections from numerous victims. Details of the threat, including advice on remediation and the promise of updates in the event of further developments, are on the company's blog here.

Virus Bulletin suggests that readers keep secure backups of all sensitive or valuable data, at all times.

Posted on 05 June 2008 by Virus Bulletin

twitter.png
fb.png
linkedin.png
hackernews.png
reddit.png

 

Latest posts:

VB2018 paper: Lazarus Group: a mahjong game played with different sets of tiles

The Lazarus Group, generally linked to the North Korean government, is one of the most notorious threat groups seen in recent years. At VB2018 ESET researchers Peter Kálnai and Michal Poslušný presented a paper looking at the group's various…

Book your VB2019 ticket now for a chance to win a ticket for BSides London

Virus Bulletin is proud to sponsor this year's BSides London conference, which will take place next week, and we have a number of tickets to give away.

First 11 partners of VB2019 announced

We are excited to announce the first 11 companies to partner with VB2019, whose support will help ensure a great event.

VB2018 paper: Fake News, Inc.

A former reporter by profession, Andrew Brandt's curiosity was piqued when he came across what appeared at first glance to be the website of a small-town newspaper based in Illinois, but under scrutiny, things didn’t add up. At VB2018 he presented a…

Paper: Alternative communication channel over NTP

In a new paper published today, independent researcher Nikolaos Tsapakis writes about the possibilities of malware using NTP as a covert communication channel and how to stop this.

We have placed cookies on your device in order to improve the functionality of this site, as outlined in our cookies policy. However, you may delete and block all cookies from this site and your use of the site will be unaffected. By continuing to browse this site, you are agreeing to Virus Bulletin's use of data as outlined in our privacy policy.