PortalFlow will also open new tabs in the browser that display advertisements trying to sell software, push fake software updates, and tech support scams. This is most likely done to generate advertising revenue by using Yahoo Search for its search results.
When installed on a computer, the PortalFlow browser hijacker will redirect your browser search queries through, which will redirect to search result pages from.
To do this, PortalFlow uses a browser extension or program. PortalFlow is a malicious program for Mac that can change the browser search settings and display unwanted advertisements not originating from the sites you are browsing.
Image: PortalFlow browser redirect What is PortalFlow? PortalFlow is a malicious program that injects advertisements into websites that you visit and changes the default search engine of your browser to PortalFlow Search.