Original post with company name - https://www.scammer.info/d/48152-tech-support-scammers-number-1-844-394-4714 Thanks to ImperialESP for getting the company name.
Company who was behind this popup: https://etechpro.net/
According to the site their office in India is at - 35a, Black Burn LnPoddar Court, Bowbazar, Kolkata, West Bengal 700012, India. The company who owns this office is Jaz Infotech PVT LTD More info on who runs the company at https://www.zaubacorp.com/company/JAZ-INFOTECH-PRIVATE-LIMITED/U72100WB2011PTC168436 and the directors are:
And there revised office in Korea is at 704 Sunreung-ro, Unit # 1236-4, Gangnam-gu, Seoul, Korea
Business ID 698-03-00128
SOPORTE ETECHPRO ONLINE SL more info about that company here https://empresite.eleconomista.es/SOPORTE-BANKOI.html (page should let you google translate, did for me)