Subscribe to Windows IT Pro

 

Get Newsletters

  • Get the Latest News
  • Product Updates
  • Helpful Tricks
  • Productivity Tips

Subscribe Now!

September 28, 2004 12:00 AM

JPEG GDI+ Trojan Unleashed

M Edwards
Windows IT Pro
InstantDoc ID #44039
Rating: (0)
It was only a matter of time before someone unleashed malware that exploits the JPEG GDI+ vulnerability. Over the last two weeks various people have released proof of concept code in stages. The first code base that consisted of a corrupted JPG image file that caused an application to crash. The second code based was a JPG image that spawned a local command shell with no remote access. Within hours of the second code base released another person claimed to have made the command shell bind to a port for remote access. 

Now someone has taken matters to a greater extreme by unleashing a JPEG file that causes a buffer overrun where shell code is run on the affected system. The shell code connects to a remote FTP site and downloads approximately 2MB of data, installs a Trojan service, and also installs a copy of radmin.com, which supposedly allows a remote user to interact with a system as if they were sitting at the local console. The Trojan also downloads several other tools, including fport, netcat, peek, rcrypt, and more.
 
According to Easynews, the JPEG exploit first appeared on several Usenet newsgroups that commonly contain erotic images. A possible way of detecting whether a system is infected is to look for a directory called, c:\windows\system32\system\ which might contain files named nvsvc.exe and winrun.exe. The Trojan might also open port 10002.  Easynews also made packet captures available that were taken as the JPEG infected a Windows XP system.

This is probably only the beginning of several future exploits that might take advantage of the JPEG GDI+ vulnerability. As always, you are advised to be sure you have the latest virus signature updates on your systems, and to be sure that you've loaded the patch if necessary. You can learn more about the patch and tools that can help you identify systems that need the patch in our Security Matters blog and in our related news story, "New Tools Help with JPEG GDI+ Updates".

Related Content:

ARTICLE TOOLS


Want to use this article? Click here for options!

Comments
Add A Comment
    There are no comments to display. Be the first one!
You must log on before posting a comment.

Are you a new visitor? Register Here

advertisement

advertisement

White Papers

Get your Windows 7 deployment off to the right start by implementing PC lockdown. A locked-down environment is easier and cheaper to support since users are less likely to make unnecessary changes to the core system configuration - read more here!

Essential Guides

Is your iSCSI "lossy"? The reality is that most off-the-shelf Ethernet hardware deployed for iSCSI can lose packets, resulting in slow performance or application downtime. Learn how to assess your current iSCSI infrastructure and engineer an advanced iSCSI SAN infrastructure.

Web Seminars

What's the best way to keep your network safe from malware? In this web seminar, security expert Greg Shields suggests an alternative method to the traditional blacklisting approach that is common with anti-virus and anti-malware solutions.

eLearning Series

We bring the experts direct to you to share their real-world perspective and expertise. During each event, three sessions stream in real time, so you can learn, ask questions, and get solutions.
Upcoming event: Getting the Most with Exchange 2010 with Paul Robichaux

Subscribe to Windows IT Pro!

Cloud IT Pro DevProConnections Left-Brain Mobile Dev Pro SharePoint Pro SQL Server Pro SuperSite for Windows Windows IT Pro

© 2012 Penton Media, Inc.

Home About Us Advertise Customer Service Privacy Statement Subscribe/Renew Terms Of Use

Windows is a trademark of the Microsoft group of companies. Windows IT Pro is used by Penton Media Inc. under license from owner.