| Name | Type |
| Rion | Trojan |
| RJump | Backdoor |
| Robobot | Backdoor |
| Rohu | Trojan |
| Roings Search Enhancement | Adware |
| Roogoo | Adware |
| Rotarran | Downloader |
| RPCC Spammer | Trojan |
| RtR | Trojan |
| RU | Dialer |
| Ruango | Adware |
| Ruby.Kakkeys | Trojan |
| Ruins | Trojan |
| Rukap | Backdoor |
| Runar | Backdoor |
| Runex | Downloader |
| Runner.F | Downloader |
| Rux | Trojan |
| RXToolbar | Adware |
| Rydial | Dialer |
