How to Remove Cshmdr Virus

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Cshmdr is a sneaky cyber infection. To put it mildly, it’s quite a pest. This irritating program slithers itself onto your machine behind your back. From then on, things become messy. Cshmdr has been classified as an adware and a PUP (potentially unwanted program). Have you had to deal with adware/PUPs so far? If not, take your time to check out today’s article. Despite being relatively easy to tackle, these infections aren’t harmless. No type of virus is. That means you have to take action immediately in order to prevent further harm. Make sure you tackle Cshmdr as soon as you encounter its unwanted presence. The virus turns your entire online experience upside down. To begin with, Cshmdr modifies your default browser settings. It adds an extension or a plugin to your once reliable browsers. By doing so, this program injects your browsers with ads. You have already noticed these advertisements, haven’t you? Ignoring the commercials isn’t an easy task. For one thing, the ads are everywhere. They cover every website you attempt to visit and force you to waste your time dealing with them. In addition, these pop-ups come in various shapes so you’re about to witness an endless pile of ads. We’re talking coupons, discounts, deals, offers, price comparisons. What you must keep in mind is that none of these ads should be trusted. The Cshmdr pop-ups share one thing – they are all sponsored. In other words, the advertisements help cyber crooks gain revenue online. Making effortless money pretty much sums up this parasite’s existence. Crooks use the pay-per-click mechanism to gain profit. They cover your PC screen with sponsored ads that may or may not be real. Being sponsored, you could be certain some of these commercials lead to fake products. If you click the wrong pop-up, you might automatically worsen your situation. How do you prevent that? Stay away from anything brought to you by this infection. Clicking would be a terribly unwarranted risk. Don’t take any chances when it comes to your safety as the Cshmdr pop-ups may cause you irreversible damage. As mentioned, some of the ads might lead you to malicious websites filled with malware. You could download more parasites before you even know it. Thus, avoid clicking the dubious Cshmdr pop-ups. The parasite may also generate random program updates or other third-party web links. Just to make the mess complete, this virus monitors your browsing-related data. Your sensitive information is being spied on ads we speak. Needless to say why this is dangerous, right? Cyber criminals are the very last people who should be having access to such details.

Remove Cshmdr

How did I get infected with?

Most parasites of the kind get spread online bundled. This is, without a doubt, the most popular malware distribution method right now. Do you see how easy it is to accidentally install a virus? All you need to do is download a bunch of unverified programs. Such questionable bundles may have at least one undesirable intruder. If you rush the installation process, you remain oblivious to the actual programs that get downloaded. There might be a whole bunch of dangerous infections attached to the bundle. To be able to spot and deselect them, take your time in the process. Instead of skipping steps, opt for the Custom option in the Setup Wizard. This will allow you to keep an eye out for potential malicious intruders on time. Having to remove parasites is a much greater hassle than preventing installation. Therefore, save yourself the immense headache and be careful. Check out the Terms and Conditions of the freeware/shareware bundles you download. Your caution will pay off in the long run so don’t overlook any potential threat.

Why is this dangerous?

The Cshmdr Virus must be removed on the spot. This pest of a program hijacks all your browsers. As mentioned, the parasite installs a malicious extension or a plugin. It’s compatible with Mozilla Firefox, Google Chrome and Internet Explorer. You’re now unable to surf the Internet at peace. Avoid the numerous web links this program generates. They might be leading you directly to dangerous pages full of malware. You also get redirected to bizarre pages. To prevent further damage, ignore this program’s search results. Avoid the pop-ups and software updates it might display too. Never underestimate a parasite’s trickery. Due to its presence on board, your private life isn’t private anymore. Crooks collect passwords, usernames, IP addresses, email addresses. They get access to your browsing history as well. Financial scams and identity theft are two horrifying scenarios you must keep in mind. To delete Cshmdr manually, please follow our detailed removal guide down below.

How to Remove Cshmdr virus

The Cshmdr infection is specifically designed to make money to its creators one way or another. The specialists from various antivirus companies like Bitdefender, Kaspersky, Norton, Avast, ESET, etc. advise that there is no harmless virus.

If you perform exactly the steps below you should be able to remove the Cshmdr infection. Please, follow the procedures in the exact order. Please, consider to print this guide or have another computer at your disposal. You will NOT need any USB sticks or CDs.

WARNING! Stopping the wrong file or deleting the wrong registry key may damage your system irreversibly.
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Please, keep in mind that SpyHunter’s scanner tool is free. To remove the Cshmdr infection, you need to purchase its full version.

STEP 1: Track down Cshmdr in the computer memory

STEP 2: Locate Cshmdr startup location

STEP 3: Delete Cshmdr traces from Chrome, Firefox and Internet Explorer

STEP 4: Undo the damage done by the virus

STEP 1: Track down Cshmdr in the computer memory

  • Open your Task Manager by pressing CTRL+SHIFT+ESC keys simultaneously
  • Carefully review all processes and stop the suspicious ones.


  • Write down the file location for later reference.

Step 2: Locate Cshmdr startup location

Reveal Hidden Files

  • Open any folder
  • Click on “Organize” button
  • Choose “Folder and Search Options”
  • Select the “View” tab
  • Select “Show hidden files and folders” option
  • Uncheck “Hide protected operating system files”
  • Click “Apply” and “OK” button

Clean Cshmdr virus from the windows registry

  • Once the operating system loads press simultaneously the Windows Logo Button and the R key.


  • A dialog box should open. Type “Regedit”


Depending on your OS (x86 or x64) navigate to:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run] or
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] or

  • and delete the display Name: [RANDOM]

delete backgroundcontainer

  • Then open your explorer and navigate to: %appdata% folder and delete the malicious executable.

Clean your HOSTS file to avoid unwanted browser redirection

Navigate to %windir%/system32/Drivers/etc/host

If you are hacked, there will be foreign IPs addresses connected to you at the bottom. Take a look below:


STEP 3 : Clean Cshmdr traces from Chrome, Firefox and Internet Explorer

  • Open Google Chrome

  • In the Main Menu, select Tools then Extensions
  • Remove the Cshmdr by clicking on the little recycle bin
  • Reset Google Chrome by Deleting the current user to make sure nothing is left behind

disable Cshmdr from chrome

  • Open Mozilla Firefox

  • Press simultaneously Ctrl+Shift+A
  • Disable the unwanted Extension
  • Go to Help
  • Then Troubleshoot information
  • Click on Reset Firefox

remove Cshmdr from firefox

  • Open Internet Explorer

  • On the Upper Right Corner Click on the Gear Icon
  • Click on Internet options
  • go to Toolbars and Extensions and disable the unknown extensions
  • Select the Advanced tab and click on Reset

remove Cshmdr from ie

  • Restart Internet Explorer

Step 4: Undo the damage done by Cshmdr

This particular Virus may alter your DNS settings.

Attention! this can break your internet connection. Before you change your DNS settings to use Google Public DNS for Cshmdr, be sure to write down the current server addresses on a piece of paper.

To fix the damage done by the virus you need to do the following.

  • Click the Windows Start button to open the Start Menu, type control panel in the search box and select Control Panel in the results displayed above.
  • go to Network and Internet
  • then Network and Sharing Center
  • then Change Adapter Settings
  • Right-click on your active internet connection and click properties. Under the Networking tab, find Internet Protocol Version 4 (TCP/IPv4). Left click on it and then click on properties. Both options should be automatic! By default it should be set to “Obtain an IP address automatically” and the second one to “Obtain DNS server address automatically!” If they are not just change them, however if you are part of a domain network you should contact your Domain Administrator to set these settings, otherwise the internet connection will break!!!

You must clean all your browser shortcuts as well. To do that you need to

  • Right click on the shortcut of your favorite browser and then select properties.


  • in the target field remove Cshmdr argument and then apply the changes.
  • Repeat that with the shortcuts of your other browsers.
  • Check your scheduled tasks to make sure the virus will not download itself again.

How to Permanently Remove Cshmdr Virus (automatic) Removal Guide

Please, have in mind that once you are infected with a single virus, it compromises your system and let all doors wide open for many other infections. To make sure manual removal is successful, we recommend to use a free scanner of any professional antimalware program to identify possible registry leftovers or temporary files.

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