I am being plagued by a full-page message that pops up when I am browsing. It warns of "Insecure Internet activity. Threat of virus attack" and says "Click here to get full advanced real-time protection and continue browsing". Needless to say, I don't trust this, and have not downloaded anything - at least as far as I know.
Glyn Collins
Putting up fake spyware or antivirus alerts, and making them look the same as Microsoft Windows alerts, seems to be the latest fashion. From the full message, the fake antivirus software in this case is KvmSecure, which is a nasty Trojan. You may just have a minor adware problem. However, if you have the Trojan, you may need to use a strong removal tool such as Malwarebytes: Beeping Computer has instructions. Remember to back up essential data first, and change important passwords afterwards.
