From 2-spyware.com
URL:Blacklist – the antivirus detection engine warning that creates questions about the security of the system. In most of the cases, this issues with continuous pop-ups can be triggered by a browser-based threat infiltration or the blacklist issue regarding the URL you visited. People in online forums question[1] the purpose of this message and ask for tips or solutions since threats can be malicious and persistent, stealthy. Also, there is a big possibility that the detection alert is false positive, especially when other AV detection tools do not find anything suspicious or questionable on the system.