The project was called Samhain and was developed by a loosely knit group in Europe. Probably we aren't the first people who thought about it and tried to write it. That's what makes us scared. Protecting organizations from such a threat requires more than updated anti-virus software. I don't know if it happens everyday, but for sure it's possible.
Automated worms are better spies than conventional hackers and crackers.
Several companies have products that claim to do that for e-mail, such as GFI's Mail Essentials and Content Technologies' MimeSweeper. But the master key itself will then become a security hole, Junestam said. Zalewski, however, said companies should not expect a boom in such stealth worms. They are still difficult to develop. But we probably should expect some kind of boom when talking about Visual Basic disc killers.