| Family | Has Image | Versions |
|---|---|---|
| OD | 2 | |
| OGC | 1 | |
| Oblivion | 3 | |
| Octopus 0.1 | 1 | |
| Odesa Downloader 2.0 | 1 | |
| Odesa Msn Pass Stealer 8.5 | 1 | |
| Olive | 2 | |
| Omega | 1 | |
| One 0.12 beta | 1 | |
| Optix | 18 | |
| Opul 1.0 | 1 | |
| Opwin Trojan 1.1 | 1 | |
| Oracle 1.0 | 1 | |
| Orbit 1.0 | 1 | |
| Orig | 1 | |
| Orion | 1 | |
| Orkus 1.1 | 1 | |
| Orkut Keylogger | 2 | |
| Oscar Downloader | 1 | |
| Outbreak | 5 | |
| Over G Trojan 1.5 | 1 | |
| Over Ride 1.2 | 1 | |
| OverSpy | 1 | |
| Overload 1.0 Beta | 1 | |
| OwnedFTP 1.0 | 1 | |
| Oxigen | 1 | |
| Oxygene Webdownloader | 1 | |
| osCagent 1.0 | 1 |