https://go.microsoft.com/fwlink/?linkid=142185&name=PUA:Win32/Perion&threatid=226948
The description reminded me that the customer I had who swore by it the most constantly brought their PC to me for spyware clean-up. It jogged my memory because I haven't seen or heard from them in 13 years.
But the completely unrelated tech support patient in my care still had copies of the installer in their Downloads directory.