Let adware be treated as malware, Canuck boffins declare after breaking open Wajam ad injector May 20, 2019 https://www.theregister.co.uk/2019/05/20/wajam_malware_claims/ Research paper: "Analyzing “Not-a-Virus” Bundled Adware: The Wajam Case" (PDF - 792 KB): https://arxiv.org/pdf/1905.05224.pdf
Wajam: From start-up to massively-spread adware June 5, 2019 https://www.welivesecurity.com/2019/06/05/wajam-startup-massively-spread-adware/