This Malware can delete and replace your entire chrome browser with a lookalike

Security researchers have uncovered a new piece of Adware that replaces your entire browser with a dangerous copy of Google Chrome, in a way that you will not notice any difference while browsing.

The new adware software, dubbed “eFast Browser,” works by installing and running itself in place of Google Chrome

http://thehackernews.com/2015/10/malware-chome.html