| 2004-07-27 | Chcc.2662 |
| 2004-07-27 | Chaos (rodzina) |
| 2004-07-27 | Macro.Word.Chaos |
| 2004-07-27 | Macro.Word97.Change |
| 2004-07-27 | Chang.1759 |
| 2004-07-27 | Macro.Word.Chandiga |
| 2004-07-27 | Chance |
| 2004-07-27 | Email-Worm.VBS.Challenge |
| 2004-07-27 | Macro.Word.Chaka |
| 2004-07-27 | Worm.Chainsaw |
| 2004-07-27 | Cha.2391 |
| 2004-07-27 | ChDir (rodzina) |
| 2004-07-27 | Email-Worm.Win32.Cervivec |
| 2004-07-27 | Cernoch.1066 |
| 2004-07-27 | Cerberus.1353 |
| 2004-07-27 | Macro.Word.Ceefour |
| 2004-07-27 | Macro.Word.Cebu |
| 2004-07-27 | Macro.Word.Cc |
| 2004-07-27 | Caz (rodzina) |
| 2004-07-27 | Catscrf.558 |
| 2004-07-27 | Catphish.701 |
| 2004-07-27 | Catman |
| 2004-07-27 | Catholic.1129 |
| 2004-07-27 | Win95.Caw |
| 2004-07-27 | Cathinone.440 |
| 2004-07-27 | Macro.Word.Catch |
| 2004-07-27 | Backdoor.FTP.Casus |
| 2004-07-27 | Worm.P2P.Cassidy |
| 2004-07-27 | Casper.1200 |
| 2004-07-27 | Macro.Word97.Cascade |
| 2004-07-27 | Carriers.6580 |
| 2004-07-27 | Macro.Word97.Carrier |
| 2004-07-27 | Carnivore.504 |
| 2004-07-27 | Carioca.951 |
| 2004-07-27 | Trojan.VBS.Carewmr |
| 2004-07-27 | Career (rodzina) |