While Malware authors continue to develop exploits to attack vulnerable systems, they are also creating automated toolsets. The new Trojan2Worm toolkit can take any executable and publish it rapidly as worm based malware that can quickly spread on USB, DVDs, CDs, network shares, and other media.

Malware Automation - Trojan2Worm Toolkit
http://vil.nai.com/vil/content/v_146248.htm
http://www.theregister.co.uk/2008/06/18/trojan_worm_toolkit/

QUOTE: This Tool-Kit is used by an attacker to convert any executable into an autorun worm, which can spread through removable devices, by implementing an “AutoRun.inf” configuration file. "Autorun.inf" is a text based configuration file which instructs the Windows operating system to perform some action upon opening a network shared drive, local folder, floppy drive, CD-ROM drive or the insertion of a removable disk drive.

Trojan2Worm (T2W) toolkit turns any executable file into a worm with auto-spreading capabilities. As such it provides the ability for Trojan infection agents to acquire worm-like spreading abilities.

The tool requires minimal skills to use, net security firm Panda Security reports. Features include the ability to compress infectious files or mutate their contents, tricks designed to make it easier to smuggle malware past anti-virus scanners. It's also possible to program malware so that it disables Task Manager, Windows Registry Editor or even selected browsers.