With so much press attention to the conficker worm, it is very likely that you have heard of it. What you may not know is that it is a very very advanced piece of code. It is quite capable, able to optimize itself to concentrate its attacks and is being updated fairly routinely by its programmers/owners. Hundreds of thousands of compromised systems are thought to still be online, making for a very risky situation when/if the handlers of the worm decide to put those infected systems to use. Even while we wait for the “other shoe to drop”, these infected systems are likely to continue propagating the worm and present a clear and present danger to other systems that are not under the attacker’s control.
The worm is capable of propagating via several methods, but the most common one is via exploitation of a vulnerability over port 445/TCP. HoneyPoint (Security Server and/or Personal Edition) users can establish HoneyPoints on this port to detect scanning/probing hosts using non-Windows systems. Linux and OS X systems can dilate this port (which can’t be done effectively on Windows without major work and impact on the system) to detect the source IP addresses of infected hosts on the network. Using approaches such as “scattersensing” has proven to be highly effective in identifying compromised hosts around the globe. These infected hosts should be removed from use immediately and should be treated as compromised using your existing incident response/security processes.
As we have said before, scattersensing is an easy, effective and cheap mechanism to gain security insight using older systems, laptops or desktops, a LiveCD (such as PuppyLinux or gOS) and HoneyPoints. You can quickly build a scatter sensor or several and move them around your environment trivially. This makes for a powerful solution to detect malware and insider threats of a myriad of natures.
Please feel free to give us a call to discuss this solution and enterprise HoneyPoint deployments further should you have any questions. Happy hunting!