| O97M.Ainesey.C | Category 1 | | 08-19-2004 |
| O97M.Cian.D | - | | 05-29-2003 |
| O97M.Coco.A | Category 1 | | 07-02-2001 |
| O97M.Cybernet.Gen | Category 1 | | 05-25-2000 |
| O97M.Darksnow | Category 1 | | 02-13-2007 |
| O97M.Dropper | Category 1 | | 11-19-2007 |
| O97M.Epik.A | Category 1 | | 03-13-2001 |
| O97M.Hopper.V | Category 1 | | 02-13-2001 |
| O97M.Jugular.A@mm | - | | 03-13-2002 |
| O97M.Shiver.A | Category 1 | | 09-03-1998 |
| O97M.Teocatl | Category 1 | | 06-14-1998 |
| O97M.Toraja.G | Category 1 | | 04-09-2002 |
| O97M.Toraja.Gen | Category 1 | | 06-05-2000 |
| O97M.Tristate | Category 1 | | 02-18-1999 |
| O97M.Xchg | - | | 02-21-2002 |
| Obmar.1960 | - | | 10-15-2001 |
| One_Half | Category 1 | | - |
| OnlineGuard | - | | - |
| Ontario | Category 1 | | - |
| Ortyc.Trojan | Category 1 | | 10-24-2002 |
| Osama Hanged Hoax | - | | 07-01-2004 |
| Osama vs Bush Hoax | - | | - |
| OSBodyGuard | - | | - |
| OSX.Exploit.Launchd | Category 1 | | 06-30-2006 |
| OSX.Exploit.MetaData | Category 1 | | 05-31-2006 |
| OSX.Inqtana.A | Category 1 | | 02-17-2006 |
| OSX.Inqtana.B | Category 1 | | 02-22-2006 |
| OSX.Klog.A | Category 1 | | 06-25-2008 |
| OSX.Leap.A | Category 1 | | 02-16-2006 |
| OSX.Macarena | Category 1 | | 11-02-2006 |
| OSX.RSPlug.A | Category 1 | | 10-31-2007 |
| OSX.Saprilt.C | Category 1 | | 06-23-2008 |
| Outback Steakhouse | - | | 04-30-2001 |