top of page

Step-by-Step Guide to Eliminating Universal Browser Malware for Improved Browser Security

Step-by-Step Guide to Eliminating Universal Browser Malware for Improved Browser Security

Universal Browser Malware is an emerging threat in the realm of browser security, characterized by its ability to inject advertisements into websites and redirect browser search queries. This type of malware not only compromises the integrity of online experiences by hijacking the browser homepage and search engine but also inundates users with unwanted advertisements that do not originate from the websites being browsed. The impact on browser security is profound, necessitating a step-by-step guide to effectively eliminate this pervasive threat and ensure a safer browsing environment.

Addressing Universal Browser Malware involves understanding its spread, detecting signs of infection, and implementing robust preventative measures such as sandboxing to protect against further attacks. This article aims to furnish readers with comprehensive insights into removing Universal Browser Malware, thus significantly enhancing browser security. Through a detailed exploration of its mechanisms, readers will be equipped with the necessary tools to safeguard their digital footprints against this insidious malware.

Defining Universal Browser Malware

Types and Characteristics of Universal Browser Malware

  1. Nature and Alias

  • Universal Browser Malware, also known as Chromestera, represents a significant threat in the digital realm, having infiltrated numerous systems worldwide.

  1. Classification

  • This malware is categorized primarily as a Browser Trojan and Browser Hijacker, indicating its capabilities to control and manipulate user browsers.

  1. Common Symptoms

  • Users might notice several disruptions including unauthorized changes to the browser's homepage, search engine redirections, the appearance of pop-up ads, and the installation of new, unwanted toolbars.

Installation and Location

  1. Modes of Installation

  • Often, Universal Browser Malware is installed without the user's knowledge, embedded within advertisements, game cracks, or software bundles.

  1. System Location

  • Typically, this malware can be located in the "C:\Program Files (x86)" directory, specifically within "chomestera/artificus web" folders, indicating its pervasive integration into system files.

Impact and Removal Challenges

  1. Browser Setting Alterations

  • The malware autonomously alters web browser settings without any permission from the user, thereby compromising browser functionality and security.

  1. Difficulty in Removal

  • Removing Universal Browser Malware proves to be exceptionally challenging as it often prevents users from uninstalling or reinstalling the affected browser, thus ensuring its persistence on the infected system.

Broader Implications

  1. Ad Injection and Revenue Generation

  • By injecting advertisements into websites and redirecting search queries, this malware not only disrupts user experience but also generates revenue for cybercriminals through fraudulent advertising.

  1. Privacy and Security Risks

  • Browser hijacking elements of the malware pose significant risks as they can lead to the theft of sensitive browsing information and the installation of further malicious extensions or toolbars.

How Universal Browser Malware Spreads

Common Methods of Transmission

  1. Infected Downloads and Email Attachments

  • Universal Browser Malware often infiltrates systems through the downloading and installation of infected programs It can also spread by users clicking on infected links or opening malicious email attachments.

  1. Corrupted Physical Media

  • Using corrupted physical media, such as infected USB drives, is another prevalent method through which this malware spreads.

  1. Deceptive Installations

  • Users frequently install malware unknowingly through deceptive prompts found in advertisements, game cracks, or bundled software. These installations may occur without clear disclosures of additional bundled software.

Digital Communication and Social Engineering

  1. Phishing Emails

  • Phishing emails are a common technique used by attackers, tricking individuals into clicking links or downloading files that contain malicious code.

  1. Social Network Spam

  • Malware can also spread through social networks where users might click on malicious links disguised as photos or videos.

  1. Remote Desktop Protocol (RDP) Attacks

  • Hackers may exploit the Remote Desktop Protocol by scanning for computers open to RDP connections and attempting to breach them using guessed credentials.

Automated and Passive Spread Techniques

  1. Drive-By Downloads

  • Some malware variants spread through drive-by downloads, which can infect a computer without any user interaction, simply by visiting a compromised website.

  1. Exploitation of Software Vulnerabilities

  • Malware often exploits vulnerabilities in outdated software to install itself without user interaction.

  1. Malicious Messaging

  • Links in text messages or social media can also be vectors for malware spread if they contain malicious links.

Signs Your Browser is Infected

Common Indicators of Browser Malware Infection

  1. Performance Issues and Crashes

  • Users may experience sudden drops in browser performance, frequent crashes, and freezing. This can often be accompanied by deleted or corrupted files.

  1. Unexpected Browser Behavior

  • The homepage or search engine may change without user input, and new, unfamiliar apps or toolbars might appear.

  1. Excessive Pop-ups and Ads

  • An influx of pop-up ads, especially those containing explicit content or persistent sales pitches, is a common sign of infection.

  1. Redirection to Unfamiliar Sites

  • Browsers may redirect users to insecure or poorly designed websites that prompt further downloads or purchases.

  1. Unauthorized Browser Extensions

  • Suspicious browser extensions or toolbars that the user did not install can appear and may be difficult to remove permanently .

  1. Security and Privacy Alerts

  • Frequent alerts about viruses or infected devices can pop up, indicating potential security breaches.

  1. Unusual System Behavior

  • Signs such as unexpected slowness, repeated error messages, and difficulty shutting down or restarting the device can indicate a malware infection.

  1. Changes to Browser Settings

  • Modifications may occur without consent, including changes to the default search engine, homepage, or the addition of new toolbars.

  1. Increased Network Activity

  • Unexplained network activity, such as unsent emails or unauthorized software installations, often points to malware presence.

By recognizing these signs early, users can take swift action to address potential threats, enhancing their overall browser security and protecting sensitive information.

The Impact of Universal Browser Malware

Immediate Impact on User Experience and Security

  1. Browser Takeover: Universal Browser Malware often hijacks browser settings, changing the homepage and redirecting search queries through unreliable search engines, inundating users with unwanted advertisements.

  2. Intrusive Ad Displays: Users may encounter new tabs that automatically open to display advertisements, fake software updates, or tech support scams, significantly disrupting the browsing experience.

  3. Vulnerability Exploitation: The malware can exploit weaknesses in browsers or their extensions, increasing the risk of the computer contracting further viruses .

  4. Syncing Risks: Browser syncing may inadvertently share private information across devices or propagate malicious content such as harmful extensions .

Long-Term Consequences for Individuals and Organizations

  1. Data Theft and Device Hostage: Malware can lead to severe issues like data theft or even ransomware attacks where devices are held hostage until a ransom is paid.

  2. Operational Disruption: For businesses, such attacks can disrupt daily operations and lead to significant financial losses.

Notable Historical Incidents

  • The Vienna Virus (1980s): Known for corrupting data and destroying files, demonstrating early examples of malware impact.

  • WannaCry (2017): This ransomware attack affected thousands of computers worldwide, leading to an estimated $4 billion in damages.

  • Petya and NotPetya (2017): These similar attacks caused around $10 billion in global damages, showcasing the extensive reach of malware.

  • Equifax Data Breach (2017): Exposed sensitive personal data of 147 million people, highlighting the severe privacy implications of security breaches.

  • COVID-19 Phishing Scams (2020): Utilized the global pandemic as a theme for phishing attacks, underlining the opportunistic nature of cyber threats.

Preventative Measures

Regular Software and Security Updates

  1. Operating System and Browser Updates: Ensure that both your operating system and browsers are kept up-to-date with the latest security patches to protect against vulnerabilities.

  2. Antivirus Software: Install a reputable antivirus software and keep it updated to defend against new threats.

  3. Application Updates: Regularly update all installed applications to close any security loopholes.

Safe Browsing Practices

  1. Caution with Downloads: Be vigilant when downloading and installing software, particularly from unknown sources. Always opt for custom installations to avoid unwanted add-ons.

  2. Avoid Suspicious Links: Do not click on links or open attachments from unknown or untrustworthy sources.

  3. Secure Websites Only: Ensure that the websites you visit use HTTPS, indicating they are secure.

Enhanced Security Measures

  1. Strong Passwords and Two-Factor Authentication: Use complex passwords and enable two-factor authentication to add an extra layer of security to your online accounts.

  2. Ad Blockers and Security Extensions: Install ad blockers and browser security extensions to prevent malvertising and block malicious websites.

  3. VPN Use: Employ a Virtual Private Network (VPN) to encrypt your internet connection, protecting your data from interceptors.

Data Protection Strategies

  1. Regular Backups: Frequently back up important data to an external drive or cloud storage to safeguard against data loss from ransomware attacks.

  2. Use of Security Tools: Utilize tools like Guardio for browser protection and run regular security scans to detect and remove threats.

Awareness and Education

  1. Educational Resources: Stay informed about the latest security threats and learn safe internet practices.

  2. Phishing Awareness: Educate yourself and others about recognizing phishing attempts to prevent data breaches.

By implementing these preventative measures, users can significantly enhance their browser security, protecting themselves from universal browser malware and other cyber threats.

Removing Universal Browser Malware

Step-by-Step Removal Process

  1. Reset Browser Settings

  • Navigate to Google Chrome settings, select 'Reset and Clean up', and choose 'Restore settings to their original defaults'.

  1. Uninstall Suspicious Applications

  • Access 'Apps and Features' from the Start menu, inspect the list for suspicious applications, and proceed with uninstallation.

  1. Delete Malicious Files

  • Manually locate and delete the "chomestera/artificus web" folders in the "C:\Program Files (x86)" directory and restart the computer.

  1. Run Specialized Removal Tools

  • Utilize tools like Chrome Policy Remover and Rkill to address policy restrictions and terminate malicious processes. Ensure to run these tools with administrative rights.

  1. Scan for Malware

  • Employ comprehensive scans using Malwarebytes, HitmanPro, and AdwCleaner to detect and remove any lurking infections, adware, or potentially unwanted programs.

  1. Remove Malicious Browser Policies

  • Use Command Prompt with administrative privileges to remove any malicious policies that have been set by the malware.

  1. Clear Malicious Scheduled Tasks

  • Search for and eliminate any malicious tasks scheduled in the system that could reinstate the malware.

  1. Restore Browser Extensions and Notifications

  • Remove any unknown or malicious browser extensions and reset notification settings to default across all installed browsers.

Browser-Specific Cleanup Steps

  • Mozilla Firefox: Access 'Help', select 'More troubleshooting information', and click on 'Refresh Firefox' to reset settings.

  • Safari: Check homepage settings, remove suspicious extensions, deselect notification permissions, and clear the cache to revert to safe browsing conditions.

  • Removing from Mobile Devices: For mobile browsers, navigate to the Apps section in settings, locate the browser app, clear data, and uninstall any suspicious extensions.

By following these detailed steps, users can effectively eliminate Universal Browser Malware, restoring security and functionality to their browsing environments.


Through the comprehensive guide provided, readers have gained valuable insights into identifying, addressing, and preventing the pervasive threat posed by Universal Browser Malware. This malware, by hijacking browser settings and injecting unwanted advertisements, not only disrupts the digital user experience but also poses significant privacy and security risks. The importance of staying vigilant and adopting robust security measures cannot be overstated in safeguarding against such threats. By implementing the prevention and removal steps outlined, individuals can significantly enhance their browser's security and protect their privacy.

The implications of falling prey to Universal Browser Malware extend beyond mere inconvenience, potentially leading to data theft and severe operational disruptions for individuals and organizations alike. Hence, it is crucial to remain proactive in updating software, practicing safe browsing habits, and incorporating enhanced security measures. As the digital landscape continues to evolve, so do the tactics of cybercriminals, making awareness and education on the latest security threats and defense mechanisms paramount in the ongoing battle against malware.


How can I get rid of malware in my web browser?

To eliminate malware from your browser, follow these steps:

  1. Open Google Chrome.

  2. Click on the three dots in the upper-right corner to access the menu.

  3. Navigate to 'Settings'.

  4. Go to 'Advanced' and then 'Reset and clean up'.

  5. Click on 'Clean up computer' and choose 'Find harmful software'.

  6. Remove any harmful software detected in your browser.

What is the process for completely removing a browser hijacker?

To completely eradicate a browser hijacker, do the following:

  1. Identify the program causing the hijack.

  2. On a Windows PC, go to 'Start' and then 'Apps & Features'.

  3. Locate the malicious program in the list and select 'Uninstall'.

What measures should I take to secure my web browser?

To enhance the security of your web browser, employ these six best practices:

  1. Always update your browsers to the latest version.

  2. Use HTTPS protocol for secure connections.

  3. Create and use unique passwords for different sites.

  4. Turn off auto-complete for forms to prevent automatic information entry.

  5. Block pop-ups and advertisements.

  6. Control and limit the use of cookies on websites.

Which three steps can I take to improve my web browsing security?

To increase your web browsing security, consider these three actions:

  1. Regularly update your web browser to the latest version.

  2. Minimize the number of extensions you use.

  3. Enable HTTPS-Only mode in your browser settings.Additionally, installing a reliable adblocker and blocking pop-up windows can further enhance security. Remember to regularly delete cookies that you no longer need.



bottom of page