rvzr-a.akamaihd.net/sd/ pop-up ads might occur when your computer is infected with a malicious browser extension installed by Adware or Potentially Unwanted Software (PUPs) knows as the “BetterSurf” virus. The ads that rvzr-a.akamaihd.net/sd/ promotes are caused by this adware and are being redirected to a new domain, which is often not related to the malware itself. The domain is only used to promote the ads and not malicious or associated with the malware. The ads might vary, sometimes it promotes a Fake Java Alert of a alert to Update your Media Player or it can be a legit ad from a product of website you recently visited. Related adware is usually bundled with freeware. It’s very important that you pay attention to the license agreements and installation screen when installing free software. If the custom installation offers a decline, custom or advanced button, click it to find out if there is any additional software installed that you do not need or want. During installation the adware offers you additional software to enrich your browser experience. Take note that this additional software might be bundled with ads to keep it free.