ProgressHelper is an unsafe program that has the features of a browser hijacker. Its main purpose is to promote a fake search engine and redirect users to unknown Internet pages. A visible symptom that your computer has been infected with ProgressHelper is that your browser's homepage and default search engine have been replaced with the malware's own search tool. As it cannot deliver unique results, each time you start a search query, you will see a results page from Yahoo's search engine eventually.
Through this fraudulent scheme, ProgressHelper generates artificial traffic to unpopular or corrupted websites while putting users at huge security risks; at the same time, the operators of this dubious program cash up all the advertising revenues.
ProgressHelper browser extension or program can infect target computers bundled within the installers of other software or freeware. Yet, users also could install it unintentionally by clicking on a suspicious advertisement that has been enriched with a corrupted script. To avoid PUPs like ProgressHelper, you should avoid questionable advertisements or links, and always opt for the Custom installation method when downloading applications. Automated malware removal tools are available, and they can clean your PC from this browser hijacker.