Malwarebytes Anti-Malware 2.0 is being hosted on unfamiliar sites and delivering PUPs. These are all potentially unwanted programs (PUPs), meaning theyre not really malware, but they exhibit behaviours that we find questionable. These files enable themselves to run whenever Windows is restarted or the system is turned on. Theyve also created the following noteworthy registry keys upon installation:. The files also create entries to IEs restricted sites zone, consequently blocking users from accessing specific domains.”]
Source: https://blog.malwarebytes.com/threat-analysis/2014/05/fake-malwarebytes-anti-malware-2-0-abound/