Ad.doubleclick.net Ad.doubleclick.net is a suspiciously acting software, credited with the unfavorable recognition of being labeled an Browser Hijacker computer virus by a number of security experts. At any rate you should avoid clicking on the Ad.doubleclick.net Ads regardless of what form they appear at, because this is the one way Browser Hijacker might stop being just annoying and might become quite damaging and dangerous.\u00a0 Why is that, you might ask. By interacting with the Ads you are exposing your device and yourself to the very real possibility of contracting more virus applications, ones that might be a lot more threatening than Ad.doubleclick.net. Negative impacts on your PC Here we are going to list all adverse effects that your devise might be subjected to until you manage to remove Ad.doubleclick.net completely. Also we will provide a brief explanation what exactly is causing the issues. \tGeneral slowing down of the entire system. \tReduced performance and \u201clagging\u201d. \tMomentary \u201cfreezing\u201d of the entire device and on older systems even complete OS crushes. \tIn some cases the dreaded BSOD (blue screen of death) might appear. We are not going to bore you with overcomplicated technical mumbo jumbo but instead try to explain all of the above as briefly and simply as possible. Any time you task your computer to perform something as simple as opening your web browser or a new word document for example, a certain amount of computing power goes into that process. Due to the malware presence any time try to perform even a simple process your CPU will be tasked with times the amount of \u201cpower\u201d required to execute it than it normally did before the infection. This is due to the fact that a web page, pop-up or banner is being created at the same time you open a new tab in your browser, for instance. SUMMARY: Name Ad.doubleclick.net Type Browser Hijacker Danger Level High. Your browser has been hijacked and numerous dangers are awaiting. Symptoms Changes to your web browser, unwanted Ads and annoying and potentially dangerous redirects. Distribution Method Software bundles, downloaded infected executable files. Detection Tool Ad.doubleclick.net Removal The first thing you need to do is to Quit Safari (if it is opened). If you have trouble closing it normally, you may need to Force Quit Safari: You can choose the Apple menu and click on Force Quit. Alternatively you can simultaneously press \u2318 (the Command key situated next to the space bar), Option (the key right next to it) and Escape (the key located at the upper left corner of your keyboard). If you have done it right a dialog box titled Force Quit Applications will open up. In this new dialog window select Safari, then press the Force Quit button, then confirm with Force Quit again. Close the dialog box\/window. WARNING! READ CAREFULLY BEFORE PROCEEDING! Start Activity Monitor\u00a0by opening\u00a0up Finder, then proceed to Once there, look at all the processes: if you believe any of them are hijacking your results, or are part of the problem, highlight the process with your mouse, then click the "i" button at the top. This will open up the following box: Now click on Sample\u00a0at the bottom: Do this for all processes you believe are part of the threat, and run any suspicious files in our online virus scanner, then delete the malicious files: The next step is to safely launch Safari again. Press and hold the Shift key while relaunching Safari. This will prevent Safari\u2019s previously opened pages from loading again. Once Safari is opened up, you can release the Shift key. On the off chance that you are still having trouble with scripts interrupting the closing of unwanted pages in Safari, you may need to take some additional measures. First, Force Quit Safari again. Now if you are using a Wi-Fi connection turn it off by selecting Wi-Fi off in you Mac\u2019s Menu. If you are using a cable internet (Ethernet connection), disconnect the Ethernet cable. Re-Launch Safari but don\u2019t forget to press and hold the Shift button while doing it, so no previous pages can be opened up. Now,\u00a0Click on Preferences in the Safari menu, and then again on the Extensions tab, Select and Uninstall any extensions that you don\u2019t recognize by clicking on the Uninstall button. If you are not sure and don\u2019t want to take any risks you can safely uninstall all extensions, none are required for normal system operation. The threat has likely infected all of your browsers. The instructions below need to be applied for all browsers you are using. Again select Preferences in the Safari Menu, but this time click on the Privacy tab, Now click on Remove All Website Data, confirm with Remove Now. Keep in mind that after you do this all stored website data will be deleted. You will need to sign-in again for all websites that require any form of authentication. Still in the Preferences menu, hit the General tab Check if your Homepage is the one you have selected, if not change it to whatever you prefer. Select the History menu this time, and click on Clear History. This way you will prevent accidentally opening a problematic web page again. \u00a0How to Remove Ad.doubleclick.net\u00a0From Firefox in OSX: Open\u00a0Firefox,\u00a0click\u00a0on\u00a0\u00a0(top right) \u2014\u2014->\u00a0Add-ons.\u00a0Hit\u00a0Extensions\u00a0next. The problem should be lurking somewhere around here \u2013\u00a0\u00a0Remove it. Then Refresh Your Firefox Settings. How to Remove Ad.doubleclick.net From Chrome\u00a0in OSX: \u00a0Start\u00a0Chrome, click\u00a0\u00a0\u2014\u2013>More\u00a0Tools\u00a0\u2014\u2013>\u00a0Extensions.\u00a0There,\u00a0 find the malware\u00a0and \u00a0select\u00a0\u00a0. \u00a0Click\u00a0\u00a0again, and proceed to\u00a0Settings \u2014>\u00a0Search,\u00a0the fourth tab, select\u00a0Manage Search Engines. \u00a0Delete\u00a0everything\u00a0but the search engines you normally use. After that Reset Your Chrome Settings. If the guide doesn't help, download the\u00a0anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!