DDoSseR leads to Gh0st RAT

The malware BKDR_ADDNEW, better known as 'DaRK DDoSseR' in the underground, is a tool that provides distributed denial of service (DDoS) capability combined with password stealing functionality. The tool costs $30 and has been available for several years.

FireEye reported seeing computers that had been compromised by BKDR_ADDNEW and later updated with Gh0st RAT. While Gh0st RAT has been used in many targeted attacks, this threat and its many variants (PDF), are widely available to both APT actors and cybercriminals alike.

When executed, BKDR_ADDNEW connects to a TCP port (the ports used by the samples analyzed were 443, 3176 and 3085 but the default port is 3175) to receive remote commands from a malicious operator. Some of the available commands include downloading of files, stealing Mozilla Firefox passwords, showing DNS, and sending application privileges among others. It also has the capability to launch denial of service (DOS) attacks.

Based on our investigation, BKDR_ADDNEW has built-in functionality that allows malicious actors to “update” the malware on a compromised computer.

Using this functionality it would be simple for the operators of a DaRK DDoSseR botnet to instruct the compromised systems under their control to download and execute Gh0st RAT.

Why would both types of malware be present on a compromised computer? There are a number of alternative explanations:

  • The owners of a DaRK DDoSseR-based botnet have sold “installs” to other cybercriminals. There is a thriving underground market for already compromised computers and this could be a case or change of ownership.
  • While DaRK DDoSseR has denial of service capability and the ability to steal passwords it is not a fully featured RAT (remote access tool) that is capable of file browsing, taking screen screenshots, and turning on a microphone or webcam. Perhaps the operators of this botnet wanted some additional functionality so they instructed the already compromised hosts to download and install Gh0st RAT.

You may also consult our earlier blog posts that have discussed other RATs such as JACKSBOT, PlugX, and Poison Ivy:

Trend Micro protects users from this threat via the Smart Protection Network that detects the said malware.

Join the CSO newsletter!

Error: Please check your email address.

Tags DaRK DDoSseRmalwareGh0st RAT

Show Comments

Featured Whitepapers

Editor's Recommendations

Solution Centres

Stories by Nart Villeneuve (Senior Threat Researcher)

Latest Videos

  • 150x50

    CSO Webinar: The Human Factor - Your people are your biggest security weakness

    ​Speakers: David Lacey, Researcher and former CISO Royal Mail David Turner - Global Risk Management Expert Mark Guntrip - Group Manager, Email Protection, Proofpoint

    Play Video

  • 150x50

    CSO Webinar: Current ransomware defences are failing – but machine learning can drive a more proactive solution

    Speakers • Ty Miller, Director, Threat Intelligence • Mark Gregory, Leader, Network Engineering Research Group, RMIT • Jeff Lanza, Retired FBI Agent (USA) • Andy Solterbeck, VP Asia Pacific, Cylance • David Braue, CSO MC/Moderator What to expect: ​Hear from industry experts on the local and global ransomware threat landscape. Explore a new approach to dealing with ransomware using machine-learning techniques and by thinking about the problem in a fundamentally different way. Apply techniques for gathering insight into ransomware behaviour and find out what elements must go into a truly effective ransomware defence. Get a first-hand look at how ransomware actually works in practice, and how machine-learning techniques can pick up on its activities long before your employees do.

    Play Video

  • 150x50

    CSO Webinar: Get real about metadata to avoid a false sense of security

    Speakers: • Anthony Caruana – CSO MC and moderator • Ian Farquhar, Worldwide Virtual Security Team Lead, Gigamon • John Lindsay, Former CTO, iiNet • Skeeve Stevens, Futurist, Future Sumo • David Vaile - Vice chair of APF, Co-Convenor of the Cyberspace Law And Policy Community, UNSW Law Faculty This webinar covers: - A 101 on metadata - what it is and how to use it - Insight into a typical attack, what happens and what we would find when looking into the metadata - How to collect metadata, use this to detect attacks and get greater insight into how you can use this to protect your organisation - Learn how much raw data and metadata to retain and how long for - Get a reality check on how you're using your metadata and if this is enough to secure your organisation

    Play Video

  • 150x50

    CSO Webinar: How banking trojans work and how you can stop them

    CSO Webinar: How banking trojans work and how you can stop them Featuring: • John Baird, Director of Global Technology Production, Deutsche Bank • Samantha Macleod, GM Cyber Security, ME Bank • Sherrod DeGrippo, Director of Emerging Threats, Proofpoint (USA)

    Play Video

  • 150x50

    IDG Live Webinar:The right collaboration strategy will help your business take flight

    Speakers - Mike Harris, Engineering Services Manager, Jetstar - Christopher Johnson, IT Director APAC, 20th Century Fox - Brent Maxwell, Director of Information Systems, THE ICONIC - IDG MC/Moderator Anthony Caruana

    Play Video

More videos

Blog Posts

Market Place