| 11.32% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.0.2.5 | 1492143 |
| 7.55% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 10.0.13.3 | 26435474 |
| 7.55% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.2.0.13 | 9099578 |
| 5.66% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 11.0.2.4 | 13296419 |
| 5.66% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.0.2.5 | 18344285 |
| 5.66% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 11.5.3.4 | 13089708 |
| 3.77% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 11.5.6.14 | 5729908 |
| 3.77% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.0.3.1 | 1819191 |
| 3.77% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.0.2.5 | 23858422 |
| 3.77% | %PROGRAMFILES% \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.0.3.1 | 2691505 |
| 3.77% | %PROGRAMFILES% \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 10.0.14.2 | 9980145 |
| 3.77% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.0.5.3 | 5459188 |
| 3.77% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.0.5.3 | 23518735 |
| 3.77% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.0.2.5 | 3777548 |
| 1.89% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.0.5.3 | 19691400 |
| 1.89% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.0.5.3 | 26945616 |
| 1.89% | %PROGRAMFILES% \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 11.0.9.16 | 23813357 |
| 1.89% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 10.0.14.2 | 2411414 |
| 1.89% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 11.0.8.9 | 33459449 |
| 1.89% | %SystemDiskRoot% \ S_Manut \ SystemWorksPro \ Norton Antivirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 10.0.14.2 | 9146759 |
| 1.89% | %PROGRAMFILES% \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 12.0.3.1 | 26143520 |
| 1.89% | %PROGRAMFILES% \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 10.0.25.3 | 4082035 |
| 1.89% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 10.0.0.109 | 21819624 |
| 1.89% | %PROGRAMFILES% \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 10.0.13.3 | 28795708 |
| 1.89% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 10.0.0.109 | 6553191 |
| 1.89% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 10.0.14.2 | 2004252 |
| 1.89% | E: \ Winapps \ Norton \ NAV \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 10.0.14.2 | 31680785 |
| 1.89% | %PROGRAMFILES% \ Norton Internet Security \ Norton AntiVirus \ navoptrf.dll | Norton AntiVirus | Symantec Corporation | 11.5.6.14 | 24634112 |