The July Top-Ten-frequently-occurring-viruses list was compiled by the anti-virus software developer, Sophos. I-Worm.SirCam claimed the top spot in its debut month, mostly due to user distraction caused by the Code Red/Bady media hype. The remaining 11% of virus infections reported is occupied by various other worms and Trojans. Be sure to tune in next month for the summary of virus activity for the dog days of August.”]
Source: https://securelist.com/july-2001-top-ten-sizzles/36021/