DIY crimeware kits are all the rage -- more than 60 percent of malicious websites use these toolkits to do their dirty work, while the other 40 percent are suspected of doing so, according to a new report from Symantec.

And while the kits aren't exactly point-and-click, they do lower the bar for less technical bad guys to get into cybercrime. "In the past, there were guys who were really good with computers that would engage in cybercrime. With these [crimeware] kits, we are seeing the reverse. You've now got guys who are criminals being able to move into the cybercrime field," says Marc Fossi, manager of development for security technology and response at Symantec, and author of the new "Symantec Report on Attack Kits and Malicious Websites," which analyzed a snapshot of attack data collected by Symantec tools between July 1, 2009, and June 30, 2010, to quantify the crimeware activity.

The kits historically helped computer-savvy bad guys become criminals, and now they are helping more seasoned criminals become cybercriminals, he says. "These kits are now far more accessible ... and are pretty easy to use," he says.

Symantec is seeing these kits more in use now than ever before. "Almost two-thirds of the activity on malicious websites could be [definitely] attributed to these kits," he says.

These easy-to-use and access crimeware kits are part of the reason cybercrime is on the rise: According to the report, the Zeus crimeware kit had 90,000 unique variants as of August 2009, and is suspected to be responsible for infecting millions of machines.

But the turning point for these kits was MPack, which was the first crimeware kit that was sold for profit, according to Fossi. "But one of the problems with it was it was done as a script. It's easy for people to copy scripts, change them a bit, and resell them as their own kit. So you saw a lot of kit piracy," he says.

New crimeware kits often come with anti-piracy features much like commercial software. "You can only install them on a limited number of domains," he says.

High-end kits are priced in the thousands of dollars, and often come with icon-driven interfaces, support contracts that include email support, bug fixes, and other services. "It's a very professional model," Fossi says. Just one Zeus ring in the U.S. made $70 million during an 18-month period, he says.

Symantec says most exploits incorporated into crimeware kits are not using zero-day bugs. "Exploits being included in these kits are tied to publicly available exploits," Fossi says.

The full report is available here for download.

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