'Son of Stuxnet' trojan found

Posted by   Virus Bulletin on   Oct 19, 2011

'Duqu' used in targeted attacks to steal specific information.

Researchers at both Symantec and McAfee have discovered a new Remote Access Trojan (RAT) with strong links to Stuxnet being used in some highly targeted attacks.

The trojan, which has been named 'Duqu' after the files with prefix ~DQ it creates, shares source code with Stuxnet - which indicates that its authors had access to this code and may indeed have been the authors of Stuxnet.

Unlike Stuxnet, which targeted industrial control systems, Duqu appears to be designed solely for stealing information: it contains a keylogger and monitors system activity.

Because of this, and because the trojan is highly targeted at a small number of organisations (among which, according to Symantec, are manufacturers of industrial control systems), it is speculated that it is being used as a precursor of a Stuxnet-like attack: the information obtained by Duqu could be used to attack control systems. It has not been revealed what kind of systems are being targeted, or in which country they reside.

One of Duqu's driver files is digitally signed by a certificate belonging to a Taiwanese company; Stuxnet was signed by certificates belonging to two Taiwanese companies. Symantec researchers believe that this certificate is stolen, rather than falsely generated. It has since been revoked.

McAfee researchers believe that Certificate Authorities (CAs) themselves are among the targets of the attack - in particular those CAs residing in or around the Middle East. The importance of such CAs was seen earlier this year when attackers managed to have rogue certificates signed by Comodo and DigiNotar.

More details at Symantec here and at McAfee here. To recap on what Stuxnet was all about, these FAQs at F-Secure may be helpful.



Posted on 19 October 2011 by Virus Bulletin

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

 

Latest posts:

VB2019 conference programme announced

VB is excited to reveal the details of an interesting and diverse programme for VB2019, the 29th Virus Bulletin International Conference, which takes place 2-4 October in London, UK.

VB2018 paper: Under the hood - the automotive challenge

Car hacking has become a hot subject in recent years, and at VB2018 in Montreal, Argus Cyber Security's Inbar Raz presented a paper that provides an introduction to the subject, looking at the complex problem, examples of car hacks, and the…

VB2018 paper and video: Android app deobfuscation using static-dynamic cooperation

Static analysis and dynamic analysis each have their shortcomings as methods for analysing potentially malicious files. Today, we publish a VB2018 paper by Check Point researchers Yoni Moses and Yaniv Mordekhay, in which they describe a method that…

VB2019 call for papers closes this weekend

The call for papers for VB2019 closes on 17 March, and while we've already received many great submissions, we still want more!

Registration open for VB2019 ─ book your ticket now!

Registration for VB2019, the 29th Virus Bulletin International Conference, is now open, with an early bird rate available until 1 July.

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.