| 2004-07-27 | Email-Worm.Win32.Sysnom |
| 2004-07-27 | Sysman.249 |
| 2004-07-27 | Email-Worm.Win32.Sysid |
| 2004-07-27 | Email-Worm.Win32.SysClock |
| 2004-07-27 | Synergy.288 |
| 2004-07-27 | Sylwia.734 |
| 2004-07-27 | Sword.794 |
| 2004-07-27 | Macro.Word.Switcher |
| 2004-07-27 | Switch.855 |
| 2004-07-27 | Swine (rodzina) |
| 2004-07-27 | Email-Worm.Win32.Swen |
| 2004-07-27 | Macro.Word97.Swatch.b |
| 2004-07-27 | Swastika.442 |
| 2004-07-27 | Swapper (rodzina) |
| 2004-07-27 | Swalker.1266 |
| 2004-07-27 | Macro.Word.SwLabs |
| 2004-07-27 | Svm.1153 |
| 2004-07-27 | Svirus.322 |
| 2004-07-27 | Svir.512 |
| 2004-07-27 | Svin.Boot |
| 2004-07-27 | Svin.252 |
| 2004-07-27 | Sveta.309 |
| 2004-07-27 | Macro.Word.Sveta |
| 2004-07-27 | Susenka.862 |
| 2004-07-27 | Susan.571 |
| 2004-07-27 | Worm.P2P.Surnova |
| 2004-07-27 | Macro.Word.Surabaya |
| 2004-07-27 | Email-Worm.Win32.Suppl |
| 2004-07-27 | I-Worm.Supnot |
| 2004-07-27 | Macro.Word.Supers |
| 2004-07-27 | SuperVirus.1175 |
| 2004-07-27 | Macro.Word.Sunbeam |
| 2004-07-27 | Win32.Sulpex |
| 2004-07-27 | Sulfbnk.exe |
| 2004-07-27 | SuiGeneris.577 |
| 2004-07-27 | Stupid.1355 |