There are times when it is rather hard to tell apart a computer threat and a legitimate application. The same situation can be applied to Ib.Adnxs as well. It is an adware program or an advertisement platform available at Ib.Adnxs.com. It is else called Appnexus. According to the official website, Ib.Adnxs is one of the most powerful advertising platforms in the world. With this platform companies can improve their business via online advertising. It also means that originally Ib.Adnxs does not infect computer - if there are pop-up advertisements displayed on a particular website that you visit, it means that a particular company is making use of Appnexus to display the advertisements, and to increase the user traffic on their websites.
However, a number of users complain that Ib.Adnxs is extremely annoying and constant pop-up advertisements slow down their computers and internet connection. It does not matter which browser you use or which search engine you utilize for your searches - Ib.Adnxs advertisements will be displayed no matter what. There may also be other websites that make use of Ib.Adnxs name to spread pop-up advertisements. In such a case you need to be extremely wary of these ads, because they might as well contain links to corrupted websites. Not to mention that by visiting websites promoted by these ads, you could download potentially unwanted programs or even malware onto your computer.
Afterwards run a full system scan with SpyHunter free scanner and see what other files you need to remove from your computer to completely get rid of Ib.Adnxs. Invest in a reliable antimalware tool that will protect your computer from other infections.