This Mac threat can affect Safari, Chrome, and even Firefox browsers. The main goal of this potentially unwanted application (PUA) is promote search engine on Mac Safari, with series of intermediate redirects through suspicious domains like Search Baron (). This application is known to be hard-to-remove for a regular PC user. Search Marquis virus (alternatively known as redirect) is a persistent Mac browser hijacker. Tips to avoid installing Mac spyware/malware.Mac says you’re low on memory? It can be a sign of another infection.How this Mac virus operates: easy explanation.Search Marquis virus keeps redirecting Mac users.