The Rjs.xstreamjs.net domain is utilized by adware developers to propagate potentially harmful software. An adware infection is responsible for displaying pop-ups referring to a supposedly legitimate Adobe Flash Player update. The pop-up by Rjs.xstreamjs.net uses an emblem similar to the Google Chrome's 'Flash Player Has Crashed' page, the VeriSign's 'Norton Secured' logo and the Adobe Flash Player logo. However, the software offered on Rjs.xstreamjs.net could be a Potentially Unwanted Program (PUP) or a tool to grant crooks a remote access to your PC. The adware behind the Rjs.xstreamjs.net pop-up might have been installed on your PC as an extra browser extension along with a free application. Security researchers advise against downloading software from Rjs.xstreamjs.net, and you might want to heed their advice and use a trustworthy anti-spyware tool to clean your PC.