Most Read Descriptions
| Threat Name | Description Type | Threat Type | Date Added |
| Win32/Rbot | Threat Variant | trojan | 2005-03-19 |
| Win32/Spy.Zbot.YW | Threat Variant | trojan | 2010-04-21 |
| Win32/Sirefef.A | Threat Variant | trojan | 2009-11-13 |
| Win32/Spatet.A | Threat Variant | trojan,worm | 2009-11-12 |
| Win32/AutoRun.KS | Threat Variant | worm | 2008-04-09 |
| Win32/Dorkbot.B | Threat Variant | worm | 2011-05-16 |
| Win32/Bifrose.NEL | Threat Variant | trojan | 2008-08-29 |
| Win32/Agent.OBA | Threat Variant | trojan,worm | 2008-07-24 |
| Win32/Qhost.PEV | Threat Variant | trojan | 2012-04-17 |
| Win32/Delf.NZL | Threat Variant | trojan | 2009-02-13 |
| Win32/Delf.NVC | Threat Variant | trojan | 2008-12-19 |
| Win32/TrojanDownloader.Wauchos.A | Threat Variant | trojan | 2012-05-12 |
| Win32/Bifrose.NTA | Threat Variant | trojan | 2009-09-29 |
| Win32/Spy.SpyEye.CA | Threat Variant | trojan | 2010-12-29 |
| Win32/Spy.Zbot.AAO | Threat Variant | trojan | 2012-02-21 |
| ACAD/Medre.A | Threat Variant | worm | 2012-02-02 |
| Win32/Adware.SystemSecurity.AL | Threat Variant | adware,riskware | 2012-06-01 |
| Win32/Cakl.NAG | Threat Variant | trojan | 2008-03-17 |
| Win32/SpyVoltar.A | Threat Variant | trojan | 2011-10-03 |
| Win32/AutoRun.Qhost.AD | Threat Variant | worm | 2010-05-11 |
| Win32/Sirefef.EV | Threat Variant | trojan | 2012-04-18 |
| HTML/Iframe.B.Gen | Threat Variant | virus | 2009-07-11 |
| Win32/Bifrose.ACI | Threat Variant | trojan | 2007-01-25 |
| Win32/Conficker.AA | Threat Variant | worm | 2009-01-01 |
| Win32/Poison.NAE | Threat Variant | trojan | 2008-01-17 |