Panda Software has comprised an anecdotal ranking with the malware threats of the past half of 2006. This goes to show that it has been a relatively slow year, from the point of view of malicious software repercussions that passed without a single viral epidemic. The following is a list put together by Panda, with each threat being given a humorous description:

"The sexiest. Without a doubt, this award goes to the Tearec.A worm, better known as Kamasutra. This worm spread through email messages with explicit texts like Sex or Sex videos. However, instead of showing videos or risqué images, on the third day of each month, this worm overwrote all the files with certain extensions that it found on the affected computer," claims Panda.

The most methodical seems to be Bagle.IB that disables up to 525 different security related processes. The title of the most schizophrenic goes to Biwili.A that can compromise both Windows and Linux platforms.

Panda names as the most terrifying BlackAngel.B that has horror movie style images while displaying the message: "On the 1st day you will be scared, on the 2nd you will be desperate, on the 3rd you will look for help and on the 4th you die."

The lustiest is the spyware program PornMagPass, which promises free access to pornographic websites.

Sixem.A and Bagle.GZ are the most sporty, spreading via e-mail messages that made references to FIFA World Cup 2006 and the Winter Games in Turin.

"The most complex. This "accolade" goes to the Detnat.A virus, which used polymorphic encryption to hide its code and impede detection. Fortunately, its author worked for nothing, as there is not antivirus program worth its salt that could not detect and eliminate it," said Panda.

The three most innovative are Leap.A, Inqtana.A and Oomp.A, which were the first malicious codes designed to compromise MAC OS X. Hoots.A was the nature lover, Cxover.A the most versatile and PGPCoder.D the most studious.

Closing the list is Clickbot.A, as the sharpest malware threat that is a tool for click fraud, automatically clicking on pay-per-click advertisements.