Carberp Trojan both difficult to detect and eliminate

So long as people click on unsolicited attachments in email, scammers will invent new ways to take their money, identities and more.

The source code and a manual to the popular crimeware creation kit Zeus has been leaked, perhaps giving defenders additional tools to fight infections but also raising concerns that criminals may use the source code to create a rapidly expanding compendium of variants.

Suspects charged with stealing more than US$9.4 million from U.K. banks using the Zeus botnet apparently spent more time figuring out the logistics of stealing the money than they did on securing their cyber operation.

The newest version of Zeus, a do-it-yourself crimeware kit responsible for millions of dollars in losses by consumers and businesses, comes with anti-piracy provisions similar to those used by Microsoft's Windows, a researcher said today.