Cshmdr “Virus” Removal

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There is one very irritating type of software on the Internet, commonly known as adware, which you are very likely to come across in many web locations. If you landed on this page because you already faced one representative of the adware family, named as Cshmdr “Virus”, then you probably known what we are talking about. As one of the newly reported pieces, Cshmdr “Virus” can be incredibly annoying since it can easily integrate its ad-generating components inside your default browser (it could be Chrome, Explorer, Firefox, etc.) and use it to display an enormous amount of ads, different pop-ups, banners and intrusive new boxes all over your monitor. We have dedicated this article to all of you, who want to remove the nagging ads and effectively uninstall the adware from their system. For that, we have created a step-by-step removal guide, but before you reach it, we suggest you first read a bit more about the specifics of this ad-producing software, its danger level and typical methods of distribution. 

What is Cshmdr “Virus”?

You might be thinking that Cshmdr “Virus” is some tricky type of virus, or some nasty version malware similar to a Trojan or a Ransomware, which is trying to take over your computer. It is very easy to assume so, because the aggressive way that Cshmdr “Virus” behaves, once it gets inside your system, doesn’t really gives you much of peace and is able to irritate you to such an extent, that you may wish to never open your browser again. However, this is very wrong assumption. Adware is not a virus and is definitely not related to harmful threats like Trojans, Ransomware, Spyware and other nasty malware. Adware is an ad-generating software. This means that all the programs, which fall in its category, are specialized in showcasing different types of advertisements, new tabs, pop-ups, banners and various intrusive promotional messages. Programs like Cshmdr “Virus”, for instance, contain an ad-displaying script, which can easily integrate into any browser – whether it is Chrome, Firefox or some other, and can make it start to load these ads the moment you open it. This activity is not malicious, and is generally used by the online advertising industry as an aggressive marketing approach, or as a part of a Pay-Per-Click strategy. However, some of the users may really feel disturbed by the adware and its constant flow of ads, therefore, they may wish to remove it.

How can Cshmdr “Virus” infect you?

Now that you know that Cshmdr “Virus” is not malicious, you must be wondering how exactly it got inside your PC without you realizing it. What we are going to say here may sound really strange, but the chance is that you have installed the adware on your system on your own. Unlike viruses, adware cannot sneak inside and really “infect” you. Instead, this software uses a method known as software bundling where it gets distributed in a setup along with some other attractive program, a game, a video or audio player or some optimization software. Most of these bundles can easily be found for free in spam emails, different links, automatic installation managers, free downloads, shareware sites, freeware or torrent platforms, and intrusive advertisements, pop-ups and notifications. You may not be aware of what exactly a given bundle contains unless you read the EULA or carefully check for additional software through the “Advanced/Custom” option before the installation has completed. If you overlook that and simply install the bundle the standard way, you will most probably end up with a nagging piece like Cshmdr “Virus” inside your machine and may need to manually uninstall it later.

Side effects?

The adware may generally be developed for the purposes of the online advertising industry, but the way it may affect the users’ normal browsing experience may really make this piece of software potentially unwanted. We believe that you won’t be very happy to know that Cshmdr “Virus” and other similar pieces may be programmed to gather your browsing related information (such as your most recent search queries, the latest pages you have visited or your entire browsing history) and transmit it back to its developers and the people who own the adware. They can use it as a valuable marketing data for their ad-generating campaigns or sell it to third parties for profit. And while they are making profits, you will most probably have to endure frequent browser crashes, intrusive and aggressively popping advertisements, screen freezing and general sluggish performance of your system. If this doesn’t sound like something you would like to tolerate every day, we will be happy to provide you with a detailed guide, which can help you remove the adware and all of its disturbing activities safely and easily.

Cshmdr “Virus” Removal

Before you begin completing the steps from the following guide, we advise you to place a bookmark on this page or have it opened on a separate device since some of the following steps will require you to close your browser.

Enter Safe Mode. If you don’t know how to do it, use this guide.

II 

Open the Task Manger by pressing Ctrl+Shift+Esc. Go to the processes/details Tab and take a look at the resulting list. If you see a process with the name of the unwanted program or looks shady, right-click on it and select Open File Location. If you believe it is part of the infection, delete the files.

III 

Use the Winkey+R key combination to open the Run window and in the search field type appwiz.cpl. Hit Enter and in the resulting list, look for recently installed programs that look potentially unwanted. If you find anything – uninstall it.

IV 

Re-open Run and this tie type msconfig. Hit Enter again and in the resulting window, go to the Startup tab. See if there are any shady programs there and if anything looks suspicious uncheck it and then select OK.

In the Start Menu search field, copy-paste the following line: notepad %windir%/system32/Drivers/etc/hosts . Open the first result and look at the bottom of the file where it says “Localhost”. If there are any IP addresses below that, tell us what they are in the comments since they might be coming from the unwanted software.

VI 

Type Network Connections in the Windows search field and click on the first result. Right-click on the adapter that you are using at the moment and go to Properties > Internet Protocol Version 4 (TCP/IP) > Properties.

If the DNS line is not set to Obtain DNS server automatically, make sure to check that option.

Now go to Advanced > DNS tab and remove everything in DNS server addresses, in order of use.

VII 

Right-click on your browser’s icon and select Properties. Delete everything in Target that is after .exe”.

For Chrome users

Close Chrome and go to this folder: C:/Users/*Your username*/AppData/Local/Google/Chrome/User Data. Change the name of the Default folder to Backup Default. Re-open Chrome.

For Firefox users

Open Firefox and click on the Main Menu > Add-ons > Extensions. If you see anything suspicious there, remove it.

For IE users

When you open the browser, go to Tools > Manage Ad-ons and remove the unwanted software if you see it there. Next, go to Tools > Internet options and change the homepage URL to whatever you are normally using.

VIII 

Open Run (Winkey+R), type Regedit and click on OK. Next, press Ctrl+F and type the malware name. Hit Enter and delete everything that gets found.

If there are no results from the search, manually visit those folders in the Registry Editor.

  • HKEY_CURRENT_USER/Software
  • HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVersion/Run
  • HKEY_CURRENT_USER/Software/Microsoft/Internet Explorer/Main

If you find there any suspicious keys that have names with a lot of random letters and numbers, delete them or if you are not sure, tell us in the comments what you saw.

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