Ro04.biz Virus

Ro04.biz

Ro04.biz is a browser-redirecting app for Windows that spams ads inside the browser and tries to redirect the user to promoted sites. Experts label Ro04.biz as a browser hijacker and advise the user who have it to uninstall it as soon as possible.

The Ro04.biz virus

The reason why it’s best to remove this hijacker from your computer if it is currently there is that the advertisements, the page redirects, and the changes this unwelcome app has made in your browser may potentially lead to some serious system security issues. Some of the most typical changes that hijackers make in the browser are the replacement of the address of the homepage and the change of the search engine service that is used by default by the browser. According to the current information we have, Ro04.biz doesn’t have any compatibility limitations with regard to the different browsers – Chrome, Firefox, Edge, Opera, and pretty much any other browser you may be using could get this hijacker attached to it.

The Ro04.biz Virus

As soon as the Ro04.biz virus becomes part of the main browser in your PC, it introduces certain settings changes so that it can begin its advertising campaign on your screen. As we said, the advertising actions of the Ro04.biz virus are not only irritating to the user, but they could also be potentially hazardous.

One thing you need to understand about apps such as Ro04.biz is that they don’t discriminate between the different types of content they advertise based on how secure the promoted content is. In other words, while some of the ads may indeed lead you to legitimate offers, others may land you on pages that try to get you to download low-quality and/or potentially dangerous software by showing you fake warnings and misleading you with regard to the characteristics of the promoted software. It is, for instance, very common for some sites that are advertised by hijackers to show the user warnings about viruses that have been detected in the computer. The idea is to make the user believe that their machine has been invaded by some serious threat such as Ransomware or a Trojan and then offer them a supposed solution in the form of some obscure system security tool. However, no site can know if there’s a virus on your computer and so any such warnings are obvious attempts at scamming you and getting you to download (and maybe even purchase) a questionable app that the site tries to promote.

This type of scam sites are only one example of the types of hazards you may come across if you allow an app such as Ro04.biz or Captcha Source Center to dictate what gets displayed on your browser’s screen. It is even possible that this unwanted app potentially redirects you to sites that are maintained by hackers and used for the purposes of spreading real Trojan horses, Ransomware cryptoviruses, and other harmful threats. Obviously, the best solution to this problem would be to rid your computer of the presence of Ro04.biz by uninstalling the unwanted app. If you are struggling to remove the hijacker by yourself, the guide below will aid you in this task and allow you to clean your computer in a matter of minutes.

SUMMARY:

Remove Ro04.biz Virus

To try and remove Ro04.biz quickly you can try this:

1. Go to your browser’s settings and select More Tools (or Add-ons, depending on your browser).
2. Then click on the Extensions tab.
3. Look for the Ro04.biz extension (as well as any other unfamiliar ones).
4. Remove Ro04.biz by clicking on the Thrash Bin icon next to its name.
5. Confirm and get rid of Ro04.biz and any other suspicious items.

If this does not work as described please follow our more detailed Ro04.biz removal guide below.

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).

WARNING! READ CAREFULLY BEFORE PROCEEDING!

We get asked this a lot, so we are putting it here: Removing a malware manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect the malware for you.

 *Read more details in the first ad on this page, EULA, Privacy Policy, and full terms for Free Remover.

Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous. 

Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy

This scanner is free and will always remain free for our website's users.

This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.

Full ScanUpload New File

Drag and Drop File Here To Scan

Upload File

Analyzing 0 s

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy

This scanner is based on VirusTotal's API. By submitting data to it, you agree to their Terms of Service and Privacy Policy, and to the sharing of your sample submission with the security community. Please do not submit files with personal information if you do not want them to be shared.

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 

Hold together the Start Key and R. Type appwiz.cpl –> OK.

You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

Type msconfig in the search field and hit enter. A window will pop-up:

Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.

Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

If there are suspicious IPs below “Localhost” – write to us in the comments.

Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.

• After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

Right click on the browser’s shortcut —> Properties.

NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).

Properties —–> Shortcut. In Target, remove everything after .exe.

  Remove Ro04.biz from Internet Explorer:

Open IE, click   —–> Manage Add-ons.

Find the threat —> Disable. Go to  —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

 Remove Ro04.biz from Firefox:

Open Firefox, click    ——-> Add-ons —-> Extensions.

Remove Ro04.biz from Chrome:

Close Chrome. Navigate to:

 C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

Rename it to Backup Default. Restart Chrome.

Type Regedit in the windows search field and press Enter.

Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

• HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
  HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
  HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!