I have a Windows 7 laptop and it worked really weird these days. When I tried to go online, Ad.doubleclick.net ads keep showing up on every site i visited. I have the pop up blockers in the web browser set to high to try stop the majority of them but it hasn’t done any difference. I also ran Norton but it found nothing. What should I do? How do I stop the crazy pop-up ads that came out of nowhere on my browser?
If countless ads that titled with Ad.doubleclick.net keep showing up on your web browser and harass you, your system has been infected with adware without any doubt. Adware is the abbreviation for advertising-supported software which may seem as a regular program, but in reality it performs many evil activities on Internet Explorer, Mozilla Firefox and Google Chrome once downloaded. The application usually enters the system along with other free apps the user has previously installed. Therefore, users who are active in downloading and installing freeware need to pay close attention to what else they install into their computers, in addition to the main applications of their choice.
As soon as Ad.doubleclick.net adware is installed, various ads window will appear every single time you try to browse the web, especially when you are on shopping website like ebay or Amazon. Most of the ads are associated with dubious third parties and they are in different forms such as in-text, pop-up, pop-under, contextual and banner advertisements. When you click on them it will immediately redirect you to all kinds of shady websites and probably sell you unwanted programs or lure you into downloading rogue programs. Besides, in order to throw you more and more appealing ads, it collects your cookies and monitors your browsing habits. So the malware knows which ads have a better shot at sparking your interest and result in a click. Afterwards it bombards you with them whenever you are online and interrupts your browsing activities. Besides, it could modify your browser setting and change your default homepage and search engine. In some cases, a new tab or window could open itself automatically even though you are not working on your computer. Your computer performance will be reduced as well and it takes longer than before to open a page. In summary, Ad.doubleclick.net pop up needs to be removed quickly to ensure the safety of your PC.
If you open your browser window (includes IE, Firefox, Safari and Google Chrome etc.) and notice immediately that your home page has been changed to a page you do not recognize, then your browser may have been hijacked by adware. For this type of adware, it can keep giving you Ad.doubleclick.net pop-up ads. Other malicious activities can be shown on your computer after hijacked are listed below:
1. It can not only change your web pages, but also alter other settings to add toolbars, pop-up advertisements, and bookmarks that you did not create.
2. It can modify the homepage settings of your web browser, more commonly by reducing your internet security options. And the worse thing is it prevents you from changing them back.
3. New toolbars or Favorites are installed that give you icons and links to web pages that you don’t want.
4. It may block you from visiting certain website you’d like to visit and show an error page instead.
5. It will display constant pop-up ads, sometimes in such large amounts that you are not able to close neither the ads nor the browser.
Ad.doubleclick.net pop up hijacks your browser to redirect your web search results and changes the homepage and browser settings. To completely uninstall it from an infected system, manual removal is the first choice because sometimes antivirus software cannot pick up the exact computer threat timely or remove it permanently. Now most browser hijackers are quite similar to spyware and adware threats and therefore cannot be removed with the help of popular antivirus products. Users can follow the manual guide here to get rid of this browser hijacker completely.
1. Clear all the cookies of your affected browsers.
Since this tricky hijacker virus has the ability to use cookies for tracing and tracking the internet activity of users, it is suggested users delete all the cookies before a complete removal.
Google Chrome:
Click on the “Tools” menu and click the “Clear browsing data” button.
Select “Delete cookies and other site data” to delete all cookies from the list.
Internet Explorer:
Open Internet explorer window
Click the “Tools” button
Point to “safety” and then click “delete browsing history”
Tick the “cookies” box, then click “delete”
Mozilla Firefox:
Click on Tools, then Options, select Privacy
Click “Remove individual cookies”
In the Cookies panel, click on “Show Cookies”
To remove a single cookie click on the entry in the list and click on the “Remove Cookie”
To remove all cookies click on the “Remove All Cookies” button
2. End the malicious process from Task Manager.
Once Ad.doubleclick.net adware is installed, computer user may notice that CPU usage randomly jumps to 100 percent. At any time Windows always has many running processes. A process is an individual task that the computer runs. In general, the more processes, the more work the computer has to do and the slower it will run. If your system’s CPU spike is constant and remain at a constant 90-95%, users should check from Task Manager and see if there is a suspicious process occupying the system resources and then end it immediately.
(The name of the virus process can be random.)
Press Ctrl+Shift+Esc to quickly bring up Task Manager Window：
3. Show hidden files and folders.
Open Folder Options by clicking the Start button, clicking Control Panel, clicking Appearance and Personalization, and then clicking Folder Options.
Click the View tab.
Under Advanced settings, click Show hidden files and folders, uncheck Hide protected operating system files (Recommended) and then click OK.
4. Remove all the malicious files related to Ad.doubleclick.net ads hijacker manually.
%AppData%Local[random].exe
C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\*.exe
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main StartPage
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Ad.doubleclick.net is an unwanted pop-up that is sponsored by browser hijackers and adware. It may add an unwanted toolbar on the compromised web browser and make changes to browser settings once arrived. The people responsible for adware are good at using browser hijackers in order to force computer users to click on their ads repeatedly. Thus, they can use the artificial traffic to boost affiliate payments and promote online content. This application can show various unwanted symptoms such as redirecting your browser to other pages constantly, displaying crazy and annoying pop-up windows and slowing down your network speed to interrupt your browsing activities. Don’t hesitate to get rid of it from your machine.
Note: If you are not a computer expert and have no idea how to perform the removal, please contact experts from YooCare Online Tech Support for further help.
Published by on February 5, 2015 1:42 pm, last updated on February 5, 2015 1:42 pm
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