| 2004-07-27 | AllFools.659 |
| 2004-07-27 | Win32.Aliz |
| 2004-07-27 | Alien_II (rodzina) |
| 2004-07-27 | Alia.1023 |
| 2004-07-27 | Algerian.1400 |
| 2004-07-27 | Alfons.1424 |
| 2004-07-27 | Alfa.3072 |
| 2004-07-27 | Alex (rodzina) |
| 2004-07-27 | Alex&Solo.512 |
| 2004-07-27 | Macro.Word97.Aleja |
| 2004-07-27 | Email-Worm.Win32.Alcaul.h |
| 2004-07-27 | Albanian.1991 |
| 2004-07-27 | Albania (rodzina) |
| 2004-07-27 | Macro.Word97.Alarm |
| 2004-07-27 | Akuku (rodzina) |
| 2004-07-27 | Macro.Word.Akay |
| 2004-07-27 | Aiwedr.852 |
| 2004-07-27 | Aiw.572 |
| 2004-07-27 | Airwalker (rodzina) |
| 2004-07-27 | Aircop |
| 2004-07-27 | Ai22.1659 |
| 2004-07-27 | Ahav (rodzina) |
| 2004-07-27 | Agiplan.1536 |
| 2004-07-27 | Agena.723 |
| 2004-07-27 | Afori.656 |
| 2004-07-27 | Macro.Word97.Afeto |
| 2004-07-27 | IRC-Worm.Adrenaline |
| 2004-07-27 | Adrenalin.571 |
| 2004-07-27 | Worm.Linux.Adore |
| 2004-07-27 | Adolf.475 |
| 2004-07-27 | Worm.Linux.Adm |
| 2004-07-27 | AdiPop.495 |
| 2004-07-27 | Acvt.1243 |
| 2004-07-27 | Email-Worm.Win32.Actem |
| 2004-07-27 | Ache (rodzina) |
| 2004-07-27 | Worm.P2P.Achar |