JDownloader is an ad-supported program that will enter the PC systems as browser add-on, extension, or plug-in. This adware is normally bundled to third-party applications and comes with a couple of unwanted program. Malicious links originating from social media sites, instant messaging applications, and spam emails can also bring users to a site where in they can download JDownloader by accident.
Once JDownloader adware is running on the computer, it will begin to deliver advertisements. Annoying ads may appear in various formats including pop-up ads, banner, text link, or sidebar. Since the ads are placed in the context of the page, users mistakenly see it as normal element. In fact, JDownloader ads are not affiliated with the current web page. It will appear due to the plug-in presently installed on the browser.
About JDownloader (from downloadjdownloader.com)
Many times when downloading files on your computer, you have to access download websites which ask for security codes, wait to make a free download, find alternative links…and a never ending series of other barriers and obstacles. This can make downloading files a long and boring process. Now with JDownloader, the waiting is over!
If JDownloader is present on your computer, it only means that potentially unwanted program manages to gain an access into it. This PUP is the sole culprit for the installation of JDownloader and other adware that may exists on the computer without your knowledge. Aside from installing unknown applications, you may also observe other things like toolbar, home page hijacker, and unwanted search engine.
Presence of JDownloader is not limited to a display of excessive ads only. This adware constantly monitors your web browsing activity and records sensitive information it may sense. JDownloader also drops affiliates Internet cookies so that advertisers may be able to track any data with regards to its advertising scheme.
Every now and then, JDownloader will connect to its remote server to upload gathered information that may include number of clicks, visited pages, accessed web sites, and other relevant data.