We're not sure yet if naviagent.exe and VeriSign Software Update Agent are adware, malware, or other form of harmful program. If you are familiar with this file or process, please post a comment with your experience with naviagent.exe.

You may have a spyware or a form of adware on your system, and be completely unaware.

Using this free system scanning toolis a good way to avoid any future problems with viruses and adware.