This is the second month that we are analyzing the data we collect from our on-line scanner. Most of the malicious programs in the rankings are Trojans, just as was the case a month ago. The majority of these are from the most widespread and most dangerous classes of Trojan-Spy and Trojan-Downloader programs. In February, an old acquaintance in the form of Parite.b made a comeback. This virus has been around since the turn of the millennium, which shows that the life cycle of file viruses is considerably longer than that of other malicious programs.”]
Source: https://securelist.com/on-line-scanner-top-twenty-february-2006/36075/