A CheckOffer bundler included a copy of 7-zip that the author knew nothing about. And the ripoff even has its own site called sevenzip.info. The site where the fake SevenZip uninstall entry points to, actually exists. Malwarebytes Anti-Malware Premium blocked the site. The author of the software is not sure if this is an (unauthorized) copy or a fake version, so their team can look if there are any grounds for legal action.”]
Source: https://blog.malwarebytes.com/cybercrime/2015/10/stolen-7-zip-bundled-with-adware/