Kaspersky Lab: Reflecting on the Year 2000 [includes Linux virus discussion]Dec 15, 2000, 18:37 (13 Talkback[s])
"Increased virus-writer activity in the area of virus development for Linux has been registered this year. 37 new viruses and Trojans for this operating system have been detected. Therefore, currently the total number of viruses for Linux is 43, and what is most remarkable is that in 2000, the quantity of these viruses has increased 7-fold."
"Despite the fact that some species are able to replicate and work independently, no Linux virus has ever been detected 'in-the-wild'. Kaspersky Lab experts assume that this is because the Linux desktop standard is not as popular as its competitors."
"The most interesting member of the Linux virus family is Siilov. It is the first Linux virus that works in background mode, and is able to infect files in real-time mode."