The C.cd-sec.com is just one of the many pages of the so-called ‘ad’ type. It’s developed to fill the web browser’s constant stream of advertisements, or redirect the Firefox, Internet Explorer, Chrome and Edge to not expected and intrusive advertising web sites. If your Firefox, Chrome, Edge and Microsoft Internet Explorer from time to time redirects to the C.cd-sec.com then it’s possible that your PC has been affected by the obnoxious potentially unwanted application (PUA) from the adware (sometimes named ‘ad-supported’ software) category. The adware is created in order to provide third-party advertisements to the user without asking his permission. The adware takes control of internet browsers and reroutes them to unwanted web-sites such as the C.cd-sec.com every time you surf the Internet.
The ‘ad supported’ software that responsible for browser redirect to the unwanted C.cd-sec.com web page, is not a virus, but the virus behaves similarly. As a rootkit hides in the system, alters internet browser settings and blocks them from changing. Also the adware can install additional web browser add-ons and modules that will inject ads within the Firefox, Google Chrome, Microsoft Edge and Microsoft Internet Explorer’s screen. Moreover, the adware may install internet browser hijacker that once started, will alter the internet browser’s start page and search provider. Even worse, the adware can gather privacy data about you such as what webpages you are opening, what you are looking for the Web and so on. This privacy data, subsequently, may be transferred third party companies.
The malicious applications from the adware family that modifies the settings of internet browsers usually affects only the Edge, Chrome, Mozilla Firefox and Internet Explorer. However, possible situations, when any other web-browsers will be infected too. The adware may modify the Target property of a internet browser’s shortcut, so every time you run the web browser, instead of your start page, you will see the unwanted C.cd-sec.com web page.
Instructions which is shown below, will help you to clean your PC from the adware as well as remove C.cd-sec.com unwanted pop up advertisements from the Mozilla Firefox, Edge, Chrome and IE and other browsers.
How to remove C.cd-sec.com redirect
The ‘ad supported’ software is a form of malicious software that you might have difficulty in deleting it from your PC. Happily, you’ve found the effective C.cd-sec.com pop-up advertisements removal guide in this article. Both the manual removal method and the automatic removal way will be provided below and you can just choose the one that best for you. If you’ve any questions or need help then type a comment below. Certain of the steps below will require you to close this website. So, please read the tutorial carefully, after that bookmark or print it for later reference.
To remove C.cd-sec.com, execute the following steps:
- How to remove C.cd-sec.com popup ads without any software
- Scan your computer and get rid of C.cd-sec.com redirect with free tools
- Stop C.cd-sec.com popups and other annoying web pages
- How can you prevent your system from the attack of C.cd-sec.com pop up ads
- To sum up
How to remove C.cd-sec.com popup ads without any software
The useful removal instructions for the C.cd-sec.com redirect. The detailed procedure can be followed by anyone as it really does take you step-by-step. If you follow this process to remove C.cd-sec.com pop ups let us know how you managed by sending us your comments please.
Remove PUPs through the Windows Control Panel
Some potentially unwanted applications, browser hijacking apps and adware may be removed by uninstalling the free programs they came with. If this way does not succeed, then looking them up in the list of installed apps in Microsoft Windows Control Panel. Use the “Uninstall” command in order to remove them.
Windows 10, 8.1, 8
Click the Microsoft Windows logo, and then click Search 
. Type ‘Control panel’and press Enter as displayed in the following example.
When the ‘Control Panel’ opens, press the ‘Uninstall a program’ link under Programs category like below.
Windows 7, Vista, XP
Open Start menu and select the ‘Control Panel’ at right as shown in the following example.
Then go to ‘Add/Remove Programs’ or ‘Uninstall a program’ (Microsoft Windows 7 or Vista) as displayed in the figure below.
Carefully browse through the list of installed programs and remove all questionable and unknown applications. We suggest to click ‘Installed programs’ and even sorts all installed software by date. After you’ve found anything dubious that may be the adware that responsible for the appearance of C.cd-sec.com pop-up advertisements or other PUP (potentially unwanted program), then choose this program and click ‘Uninstall’ in the upper part of the window. If the dubious program blocked from removal, then run Revo Uninstaller Freeware to completely get rid of it from your personal computer.
Remove C.cd-sec.com advertisements from Chrome
Reset Chrome settings is a easy way to delete the adware, harmful and adware extensions, as well as to recover the browser’s home page, search provider and new tab that have been changed by ad supported software which redirects your web browser to unwanted C.cd-sec.com webpage.
First start the Google Chrome. Next, click the button in the form of three horizontal dots (
).
It will open the Google Chrome menu. Select More Tools, then click Extensions. Carefully browse through the list of installed extensions. If the list has the addon signed with “Installed by enterprise policy” or “Installed by your administrator”, then complete the following guide: Remove Chrome extensions installed by enterprise policy.
Open the Google Chrome menu once again. Further, press the option named “Settings”.
The internet browser will open the settings screen. Another way to open the Chrome’s settings – type chrome://settings in the web browser adress bar and press Enter
Scroll down to the bottom of the page and click the “Advanced” link. Now scroll down until the “Reset” section is visible, as on the image below and click the “Reset settings to their original defaults” button.
The Chrome will show the confirmation dialog box as on the image below.
You need to confirm your action, click the “Reset” button. The internet browser will launch the procedure of cleaning. Once it is finished, the web-browser’s settings including homepage, search provider by default and newtab back to the values which have been when the Google Chrome was first installed on your PC.
Delete C.cd-sec.com advertisements from Firefox
The Firefox reset will keep your personal information such as bookmarks, passwords, web form auto-fill data, restore preferences and security settings, remove redirections to undesired C.cd-sec.com web page and adware.
Press the Menu button (looks like three horizontal lines), and click the blue Help icon located at the bottom of the drop down menu as displayed on the image below.
A small menu will appear, click the “Troubleshooting Information”. On this page, click “Refresh Firefox” button as shown in the following example.
Follow the onscreen procedure to restore your Firefox web-browser settings to its original state.
Remove C.cd-sec.com ads from Internet Explorer
In order to restore all web browser newtab page, search provider and start page you need to reset the Internet Explorer to the state, that was when the Windows was installed on your computer.
First, launch the Internet Explorer. Next, click the button in the form of gear (
). It will display the Tools drop-down menu, press the “Internet Options” as shown on the image below.
In the “Internet Options” window click on the Advanced tab, then click the Reset button. The IE will show the “Reset Internet Explorer settings” window as displayed on the image below. Select the “Delete personal settings” check box, then click “Reset” button.
You will now need to reboot your personal computer for the changes to take effect.
Fix web browser shortcuts, modified by adware
Important to know, most anti-malware applications which are able to remove ad-supported software that causes multiple undesired pop ups, but unable to detect and recover modified shortcut files. So, you need to fix the desktop shortcuts for your Google Chrome, Edge, Microsoft Internet Explorer and Mozilla Firefox internet browsers manually.
Click the right mouse button to a desktop shortcut file which you use to open your browser. Next, select the “Properties” option. Important: necessary to click on the desktop shortcut file for the web-browser that is redirected to the C.cd-sec.com or other annoying web-page.
Further, necessary to look at the text that is written in the “Target” field. The adware that responsible for the appearance of C.cd-sec.com ads can modify the contents of this field, which describes the file to be start when you open your internet browser. Depending on the browser you are using, there should be:
- Google Chrome: chrome.exe
- Opera: opera.exe
- Firefox: firefox.exe
- Internet Explorer: iexplore.exe
If you are seeing an unknown text like “http://site.addres” that has been added here, then you should remove it, as displayed on the screen below.
Next, click the “OK” button to save the changes. Now, when you start the web-browser from this desktop shortcut, it does not occur automatically redirect on the C.cd-sec.com web-site or any other undesired pages. Once the step is done, we recommend to go to the next step.
Delete unwanted Scheduled Tasks
Once installed, the ‘ad supported’ software can add a task in to the Windows Task Scheduler Library. Due to this, every time when you start your personal computer, it will show C.cd-sec.com annoying web site. So, you need to check the Task Scheduler Library and delete all malicious tasks that have been created by adware.
Press Windows and R keys on your keyboard together. It will show a prompt that titled with Run. In the text field, type “taskschd.msc” (without the quotes) and click OK. Task Scheduler window opens. In the left-hand side, click “Task Scheduler Library”, as displayed below.
Task scheduler, list of tasks
In the middle part you will see a list of installed tasks. Select the first task, its properties will be open just below automatically. Next, click the Actions tab. Necessary to look at the text which is written under Details. Found something such as “explorer.exe http://site.address” or “chrome.exe http://site.address” or “firefox.exe http://site.address”, then you need remove this task. If you are not sure that executes the task, then google it. If it’s a component of the malicious program, then this task also should be removed.
Further click on it with the right mouse button and select Delete as shown on the image below.
Task scheduler, delete a task
Repeat this step, if you have found a few tasks that have been created by ‘ad-supported’ program. Once is finished, close the Task Scheduler window.
Scan your computer and get rid of C.cd-sec.com redirect with free tools
The easiest way to remove C.cd-sec.com pop-up ads is to run an antimalware program capable of detecting this adware that responsible for the appearance of C.cd-sec.com popup ads. We advise try Zemana Free or another free malicious software remover which listed below. It has excellent detection rate when it comes to adware, browser hijackers and other PUPs.
Use Zemana Anti-malware to delete C.cd-sec.com
We suggest you to run the Zemana Anti-malware that are completely clean your computer of ‘ad supported’ software that responsible for the appearance of C.cd-sec.com redirect. Moreover, the utility will allow you to delete potentially unwanted applications, malware, toolbars and hijackers that your machine can be infected too.
Download Zemana by clicking on the link below. Save it on your Microsoft Windows desktop.
164033 downloads
Author: Zemana Ltd
Category: Security tools
Update: July 16, 2019
When downloading is done, close all windows on your PC. Further, start the install file called Zemana.AntiMalware.Setup. If the “User Account Control” dialog box pops up like below, click the “Yes” button.
It will display the “Setup wizard” that will assist you install Zemana Free on the computer. Follow the prompts and do not make any changes to default settings.
Once installation is done successfully, Zemana Anti-Malware (ZAM) will automatically start and you can see its main window as displayed in the following example.
Next, press the “Scan” button to search for ‘ad supported’ software that made to redirect your web-browser to various ad web-sites such as C.cd-sec.com. This procedure may take quite a while, so please be patient. While the Zemana Free is scanning, you may see number of objects it has identified either as being malware.
When the scanning is finished, Zemana Anti Malware will show a screen which contains a list of malware that has been found. Review the report and then press “Next” button.
The Zemana Free will begin to delete ‘ad supported’ software which redirects your web-browser to intrusive C.cd-sec.com web-site. When the process is finished, you can be prompted to reboot your PC.
Scan and free your computer of ‘ad supported’ software with HitmanPro
Hitman Pro is a free removal utility that can check your personal computer for a wide range of security threats such as malicious software, ‘ad supported’ softwares, potentially unwanted software as well as adware that causes lots of intrusive C.cd-sec.com popups. It will perform a deep scan of your computer including hard drives and MS Windows registry. Once a malware is found, it will help you to delete all found threats from your computer with a simple click.
- Visit the following page to download HitmanPro. Save it on your Windows desktop.
- When the downloading process is finished, launch the HitmanPro, double-click the HitmanPro.exe file.
- If the “User Account Control” prompts, click Yes to continue.
- In the HitmanPro window, click the “Next” . Hitman Pro tool will start scanning the whole system to find out ad supported software responsible for redirecting your internet browser to C.cd-sec.com website. A system scan can take anywhere from 5 to 30 minutes, depending on your personal computer. While the HitmanPro tool is scanning, you may see how many objects it has identified as being affected by malicious software.
- When the scan is finished, Hitman Pro will show a screen that contains a list of malware that has been found. Make sure all items have ‘checkmark’ and click “Next”. Now, click the “Activate free license” button to begin the free 30 days trial to remove all malware found.
How to automatically delete C.cd-sec.com with Malwarebytes
Get rid of C.cd-sec.com popup ads manually is difficult and often the ad-supported software is not completely removed. Therefore, we suggest you to run the Malwarebytes Free which are completely clean your computer. Moreover, the free application will help you to delete malware, PUPs, toolbars and browser hijackers that your computer can be infected too.
Download MalwareBytes on your MS Windows Desktop from the link below.
326386 downloads
Author: Malwarebytes
Category: Security tools
Update: April 15, 2020
When the download is finished, close all windows on your system. Further, start the file called mb3-setup. If the “User Account Control” prompt pops up as on the image below, click the “Yes” button.
It will open the “Setup wizard” that will assist you install MalwareBytes on the computer. Follow the prompts and don’t make any changes to default settings.
Once installation is complete successfully, press Finish button. Then MalwareBytes Free will automatically launch and you can see its main window as displayed on the image below.
Next, press the “Scan Now” button . MalwareBytes Free tool will start scanning the whole PC to find out adware responsible for C.cd-sec.com pop up ads. Depending on your system, the scan can take anywhere from a few minutes to close to an hour. When a threat is found, the number of the security threats will change accordingly. Wait until the the scanning is done.
When MalwareBytes Anti-Malware completes the scan, the results are displayed in the scan report. Make sure all items have ‘checkmark’ and click “Quarantine Selected” button.
The MalwareBytes Anti-Malware will remove adware responsible for C.cd-sec.com redirect. When the cleaning procedure is finished, you can be prompted to reboot your computer. We suggest you look at the following video, which completely explains the procedure of using the MalwareBytes Free to remove browser hijackers, ad supported software and other malware.
Stop C.cd-sec.com popups and other annoying web pages
In order to increase your security and protect your machine against new annoying advertisements and harmful pages, you need to run adblocker application that stops an access to malicious ads and pages. Moreover, the program can block the display of intrusive advertising, which also leads to faster loading of web-sites and reduce the consumption of web traffic.
Installing the AdGuard is simple. First you will need to download AdGuard on your machine by clicking on the link below.
26627 downloads
Version: 6.4
Author: © Adguard
Category: Security tools
Update: November 15, 2018
When the downloading process is complete, launch the downloaded file. You will see the “Setup Wizard” screen like below.
Follow the prompts. Once the setup is finished, you will see a window like below.
You can press “Skip” to close the setup application and use the default settings, or click “Get Started” button to see an quick tutorial that will help you get to know AdGuard better.
In most cases, the default settings are enough and you don’t need to change anything. Each time, when you start your system, AdGuard will run automatically and block pop-ups, web sites like C.cd-sec.com, as well as other malicious or misleading sites. For an overview of all the features of the program, or to change its settings you can simply double-click on the AdGuard icon, which can be found on your desktop.
How can you prevent your system from the attack of C.cd-sec.com pop up ads
Many ad supported software are included in the free applications installation package. Most often, a user have a chance to disable all included “offers”, but some installers are made to confuse the average users, in order to trick them into installing the adware responsible for C.cd-sec.com pop up advertisements. Anyway, easier to prevent the ad-supported software rather than clean up your system after one. So, keep the web browser updated (turn on automatic updates), use a good antivirus programs, double check a freeware before you start it (do a google search, scan a downloaded file with VirusTotal), avoid malicious and unknown web pages.
To sum up
Now your computer should be free of the adware that causes web browsers to display undesired C.cd-sec.com pop-up advertisements. We suggest that you keep AdGuard (to help you block unwanted advertisements and undesired malicious webpages) and Zemana (to periodically scan your computer for new adwares and other malicious software). Probably you are running an older version of Java or Adobe Flash Player. This can be a security risk, so download and install the latest version right now.
If you are still having problems while trying to delete C.cd-sec.com popup advertisements from the Google Chrome, Internet Explorer, Firefox and MS Edge, then ask for help in our Spyware/Malware removal forum.
