How to remove ContainerTag.js virus

Why do I keep getting “Do you want to open or save Containertag.js” message while browsing the Internet?

Containertag.js virus usually sends annoying banners to the computer user when he/she visits a particular website online. There are a few domains that reportedly associated with these ads. Usually, victims get alerts that ask “What to do with containertag.js, from[domain name]?” for example, “Do you want to open or save containertag.js from vap1ams2.lijit.com?” and similar. The message provides three options – Open, Save, or Cancel, however, even if the victim clicks on Cancel option, the pop-up reappears again later on. It seems that this issue has been bothering a lot of computer users^[1] for a while now, so we decided to take a closer look at this problem and find a way to remove containertag.js pop-up ads for good. The first thing that we have discovered is that this problem can start bothering IE, Microsoft Edge, Mozilla Firefox and Google Chrome users.

The reason why these pop-ups rise is because a JavaScript^[2] code is trying to provide you with ads or track your browsing habits^[2] to help advertisers understand how users interact with sponsored content. However, while in some cases you can get this ad while visiting certain websites, you can also get them if your computer has a malicious program^[3] installed on it. One way or another, we recommend avoiding the ContainerTag.js ads and scanning the system with an anti-malware program before making any actions. Anti-malware software like FortectIntego can help you to remove ContainerTag.js malware and improve browsing experience significantly. However, in case the anti-malware software detects nothing suspicious, you might have to use ContainerTag.js removal instructions given at the end of this post.

How did I get infected with ContainerTag.js malware?

ContainerTag.js hijack^[4] can affect users who tend to install various programs in a rush. A failure to configure installation settings on time can allow potentially unwanted programs install themselves on your PC without introducing themselves in a direct way. Therefore, you should make sure that you do not permit software installers to do their job with pre-defined parameters that are meant to plant third-party tools and programs into user’s PC. It is highly recommended to choose Advanced/Custom setup settings and see what optional programs are bundled with your download – you might be surprised with the amount of spyware-type extensions and programs that your downloaded program promotes. Deselect these additions and proceed with the installation. It would be a great idea to read Privacy Policy and Terms of Use documents when installing free software to find out more about its functionality and privacy policies.

How can I remove ContainerTag.js pop-ups from my browsers?

If you are ready to remove ContainerTag.js virus, you have to find out whether these pop-ups are caused by suspicious third-party programs or are they delivered by websites that you visit. We highly suggest running FortectIntego software to scan your system and find out whether some suspicious elements send these pop-ups to you. The anti-spyware program can easily take care of ContainerTag.js removal and save you some time, however, if you are sure that it cannot fix the problem, follow instructions provided below.

Here are some domains related to ContainerTag.js file: 

• adnxs.com;
• lax1-ib.adnxs.com;
• vap1sjc1.lijit.com

Adjust Windows HOSTS^[5] file:

1. Push Windows Key + R to open Run prompt. Type in: %SystemRoot%\system32\drivers\etc\ and click OK.
2. You will find hosts file there. Open it with a text editor, for example, Notepad.
3. Here, you can add some websites that you want to block. Just add the following line next to the already blocked ones: 
   • 127.0.0.1lijit.com
   • 127.0.0.1[any other domain you wish to block]
4. Save the file.