Cybercriminals are selling made-to-order malware plugins to steal personal information from online banking customers. Web-injects monitor browser activity and launch fake web pages or form fields when a victim visits an online banking site. Depending on the sophistication, the plugins cost as much as $2,000 and support several malware platforms, security vendor Trusteer says. More generic web injects sell for as little as $50; cybercriminals can pay $100 to $200 for plugins that request multiple passwords from victims.”]
Source: https://www.csoonline.com/article/2131880/custom-design-growing-in-malware-market.html