eCommerce servers are being targeted with remote access malware that hides on Nginx servers in a way that makes it virtually invisible to security solutions.
The threat received the name NginRAT, a combination of the application it targets and the remote access capabilities it provides and is being used in server-side attacks to steal payment card data from online stores.
NginRAT was found on eCommerce servers in North America and Europe that had been infected with
CronRAT, a remote access trojan (RAT) that hides payloads in tasks scheduled to execute on an invalid day of the calendar.
NginRAT has infected servers in the U.S., Germany, and France where it injects into Nginx processes that are indistinguishable from legitimate ones, allowing it to remain undetected.