Threat Encyclopaedia
| Threat Name | Description Type | Threat Type | Date Added |
| Win32/KillFiles.NCI | Threat Variant | trojan | 2009-07-16 |
| Win32/Knock.AA | Threat Variant | trojan | 2009-07-17 |
| Win32/KillAV.NBN | Threat Variant | trojan | 2009-08-22 |
| Win32/KillFiles.NCL | Threat Variant | trojan | 2009-09-13 |
| Win32/Koutodoor.EN | Threat Variant | trojan | 2009-10-19 |
| Win32/Koutodoor.ER | Threat Variant | trojan | 2009-11-13 |
| Win32/Kirly.A | Threat Variant | trojan | 2009-12-09 |
| Win32/KillAV.NHD | Threat Variant | trojan | 2009-12-16 |
| Win32/Kverzdoor.A | Threat Variant | trojan,worm | 2010-01-12 |
| Win32/Kheagol.D | Threat Variant | trojan | 2010-04-23 |