ReverceCaptcha Virus

ReverceCaptcha

ReverceCaptcha is a computer app that can be categorized as a browser hijacker due to its ability to automatically install in the browser and tamper with its settings. ReverceCaptcha does this in order to promote certain pages and to show paid ads on your screen.

revercecaptcha

The ReverceCaptcha.com virus will display pop up ads and messages

The ReverceCaptcha Virus

The goal of the ReverceCaptcha virus is to generate as much advertising income as possible, using the users’ browsers as platforms for achieving this. Normally, a hijacker like the ReverceCaptcha ReverceCaptcha would get installed in the computer alongside another program. That other program is the one that users typically want to install in their machines, and the hijacker is just a bonus app, the presence of which is oftentimes not disclosed very clearly. This is why users oftentimes tend to get hijackers in their Chrome, Firefox, or Edge browsers without initially realizing it.

Symptoms such as a changed homepage and search engine, or page redirects to unfamiliar sites like Top Captcha Solver, iStart Search Bar are what usually gives away the hijacker and notifies the user about the presence of some unwanted app in their browser. Once these symptoms become apparent, some users may get intimidated and reach the conclusion that their system has been hit by some hazardous computer virus such as a Trojan horse, a Worm, or Ransomware. If you are among those users and are currently worried about the state of your computer, know that there’s probably no reason to be worried. Most apps belonging to the browser hijacker category are exclusively created as advertising tools and even though they may employ some rather aggressive and dubious tactics in order to make as much advertising revenue as possible, for the most part, they are unable to damage the computer or do anything else that’s harmful to the system or to your data. Despite this, however, there may be certain security hazards that may indirectly arise as a by-product of the hijacker’s advertising actions, and we need to warn you about them.

What are the potential security issues?

The main thing that ought to be pointed out here is the possibility of having your browser automatically redirected to sites with questionable or outright unsafe contents. The people who develop apps like ReverceCaptcha are interested in exposing you to as many ads and advertised sites as possible as this earns them Pay-Per-Click and Pay-Per-View revenue. This, however, means that, maybe, not all online locations you may get exposed to by the hijacker would be safe and reliable. Besides, hackers oftentimes use fake sites that seem safe at first glance in order to spread various kinds of computer viruses, or other malware such as Worms, Ransomware, and Trojans. Also, there are lots of phishing pages out there that mimic popular websites and are almost indistinguishable from their legitimate counterparts. In general, the very presence of a hijacker in your computer has the potential to decrease the safety levels of the machine which is why uninstalling apps like ReverceCaptcha is always the advisable action. If you think you may need help with the removal of this unwanted software, we can offer you our assistance in the form of a detailed removal guide for ReverceCaptcha that can be found here:

SUMMARY:

Name ReverceCaptcha
Type Browser Hijacker
Detection Tool

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

Remove ReverceCaptcha Virus

Some users may be able to successfully remove ReverceCaptcha with the help of the following instructions:

  1. Open the hijacked browser and click on its main menu.
  2. From the menu, select More Tool/Add-ons, depending on the browser’s options.
  3. Then search for the Extensions option/tab and click it.
  4. Carefully review all the extensions installed in the browser and try to determine which of them could be related to the ReverceCaptcha.
  5. Once you find those extensions, remove them by clicking on their respective Remove/Trash Bin button.
  6. If any other extensions in the list grab your attention as potentially unwanted or suspicious, remove them as well.
  7. Restart the browser to see how it operates now.

If you keep seeing hundreds of pop-up ads, redirects, and other signs of browser hijacking activity in the browser, then proceed with the detailed instructions below to remove ReverceCaptcha completely.


Step1

A system restart in Safe Mode will be required in order to complete the next few steps. For this reason, we recommend that you first Bookmark the page of this removal guide so you can reload it after the computer restarts.

The active link here explains how to reboot your computer in Safe Mode. Please complete the steps in it and then return to this page when the computer restarts.

Step2

WARNING! READ CAREFULLY BEFORE PROCEEDING!

Browser Hijackers like ReverceCaptcha tend to run one or more processes related to their ad-generating and page-redirecting activity in the background of the system. That’s why if you want to remove the unwanted program, you need to search for its processes and end them.

This can be done from the Processes tab (also called Details tab in Win 8 and 10) of the Windows Task Manager (to open it, use the CTRL + SHIFT + ESC keyboard key combination).

Search the listed processes for something unusual, such as a process with an odd name or high CPU and RAM usage. In many cases, the processes related to ReverceCaptcha may not have the same name, thus, you may need to research online every process that you find suspicious and check it with a professional scanner. Here is how to do the latter:

Right-click on the process that you suspect could be dangerous and, from the menu that appears, select Open File Location

malware-start-taskbar

Drop the files found in that location in the free online virus scanner below and run a check for malicious code: 

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.
Drag and Drop File Here To Scan
Drag and Drop File Here To Scan
Loading
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.


    Based on the scan results, you can easily decide whether to end the process linked to the scanned files or not.

    Ending a process that has proved to be dangerous can be done by selecting it from the Task Manager, right-clicking on it, and selecting the End Process Tree option. Another important thing you should not forget is to delete the related dangerous files and their folders from the file location.

    Note: Ending legitimate processes hides risk for the general stability and the performance of your apps and your system. Therefore, do not end processes that you are not 100% sure are part of the threat that you want to remove.

    Step3

    In case that ReverceCaptcha has appeared on your system thanks to some bogus software that you have installed recently, you need to find and uninstall that software. This will prevent a potential reinstallation of browser hijacker components on your computer.

    A quick way to access the Apps installed on your computer is to press the Windows logo key and the R key together and type appwiz.cpl in the Run window that shows up on the screen, followed by a click on the OK button:

    appwiz

    Try to find the bogus software that could have a link to the browser hijacker and uninstall it by selecting it and tapping on the Uninstall button at the top of the window. Then follow the steps from the uninstallation process.

    If you detect other apps that you believe could have introduced ReverceCaptcha (or other potentially unwanted software) on your computer, try to find some more information about them online and uninstall them too if you think they are problematic.

    Once you are done with that, open System Configuration (type msconfig in the Windows search field and hit enter) and click on the Startup tab. There, take a look at the list of Startup Items and disable any startup entries that are clearly related to the browser hijacker by removing their checkmark. Save the changes by clicking on OK.

    msconfig_opt

    Step4

    The next place where ReverceCaptcha may have made some potentially unwanted changes is the Hosts file. To open that file, press the Windows and R keys at the same time. A Run window will appear on the screen. Copy the line below in the Run window and press Enter:

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

    Scroll down the text in the Hosts file until you find where it is written “Localhost”. Then, check for suspicious IP addresses under localhost (see the image below) and if you find any, copy-paste them in the comments section below this post. Our team will review the IPs and will tell you if they need to be removed. 

    hosts_opt (1)

    Aside from making changes in the Hosts file, ReverceCaptcha may make changes in your DNS settings. That’s why we recommend that you follow the instructions below to revoke these changes:

    1. Open Network Connection by typing it in the Windows search field and selecting the first result.
    2. Right-click on the current Network Adapter.
    3. A pop-up menu will appear where you need to select Properties.
    4. In the Properties window scroll until you find Internet Protocol Version 4 (ICP/IP) and select it.
    5. Once you do that the Properties button at the bottom of the window will become active. Click it.
    6. Select Obtain DNS server automatically and click on the Advanced button at the bottom right corner.
    7. This will open a window called Advanced TCP/IP Settings.
    8. In that window, click on DNS tab.
    9. If anything has been added in the DNS server addresses field, delete it by clicking on the Remove button.
    10. To Confirm all deletions you have made, click the OK button at the bottom.

    DNS

    Step5

    The instructions in this step should be applied to all browsers that are presently installed on your system. They will help you remove any unauthorized changes that ReverceCaptcha may have introduced without your knowledge.

    • Right-click on the shortcut icon of the browser: We are using Google Chrome as an example, but you should do that with any browser.
    • Select Properties.

    browser-hijacker-taskbar-properties

    • In the Properties window, go to the Shortcut tab.
    • Go to the Target section and if you notice that anything has been added after .exe (see the image below), remove it.
    • Apply your changes by clicking on the OK button.

    Browser Hijacker Removal Instructions

    ie9-10_512x512  Remove ReverceCaptcha from Internet Explorer:

    • In Internet Explorer, go to   IE GEAR and click it to open the main menu. 
    • From the menu, select Manage Add-ons

    pic 3

    • Search for add-ons that could be linked to ReverceCaptcha or look suspicious and Disable them.
    • Next, go to IE GEAR again but this time select Internet Options.
    • If the homepage address in the homepage section has been changed, remove it and type an address of your choice.
    • Apply the changes before you close the window.

    firefox-512 Remove ReverceCaptcha from Firefox:

    • Open Firefox, go top right and click  mozilla menu
    • Select Add-ons.
    • Next, select Extensions from the left panel.
    • Remove any extensions that might have been added by ReverceCaptcha or you don’t use. If they don’t want to get removed,  disable them first and then try to remove them again.

    pic 6

    chrome-logo-transparent-backgroundRemove ReverceCaptcha from Chrome:

    • Close Google Chrome and navigate to this location: C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. 
    • In !!!!USER NAME!!!! select the folder with your user name.
    • Next, once you get inside User Data, search for a Folder called “Default” and right-click on it.

    Rename the Folder to Backup Default

    • Rename the folder to Backup Default and save it.
    • Restart the browser. 

    Step6

    The Registry is another place where ReverceCaptcha might have added some of its entries without your knowledge. The instructions below explain how to search the Registry for these entries and remove them.

    • Open the windows search field, type Regedit and press Enter.
    • This will open the Registry Editor app.
    • Once in it, use the CTRL and F key combination to open a Find window.
    • Carefully type the Name of the browser hijacker in the Find window.
    • Click on the Find Next button to search the Registry for ReverceCaptcha-related entries.
    • If such entries are found, delete them.
    • You may need to repeat the search until no more results are found.

    Finally, manually navigate to the directories below from the left panel: 

    • HKEY_CURRENT_USER—Software—Random Directory 
    • HKEY_CURRENT_USER—Software—Microsoft—Windows—CurrentVersion—Run—Random
    • HKEY_CURRENT_USER—Software—Microsoft—Internet Explorer—Main—Random

    Once you get inside each of them, delete/uninstall anything that you believe could be linked to the browser hijacker. 

    Attention! The stability of your OS may be put at risk if you delete Registry entries unrelated to ReverceCaptcha. To avoid involuntary system corruption, we advise you to use professional removal software for the deletion of dangerous entries that you cannot detect manually. 

    blank

    About the author

    blank

    Brandon Skies

    Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

    Leave a Comment