Chromnius Adware Removal (chromnius.download)

by Daniel Zimmerman
July 5, 2023
Our research team discovered Chromnius, a rogue browser based on the Chromium open-source project1, while inspecting suspicious software-promoting websites.

Upon installing Chromnius on our virtual machine, we determined that it functions as adware and possesses typical qualities of browser hijackers. Additionally, it is highly probable that Chromnius collects private information. Moreover, unintentional downloads and installations by most users classify it as a Potentially Unwanted Application (PUA).

Overview of Chromnius browser

These ads promote various types of websites, including questionable ones like gambling, adult-dating, pornography, etc.; scam-running sites like phishing, fake tech support, bogus prize giveaways, etc.; software-promoting sites like adware, fake anti-virus, browser hijacker, PUA, etc.; and malware-proliferation sites like trojans, ransomware, etc.

We observed Chromnius engaging in a typical function of browser hijackers, which involves promoting fake search engines. This rogue browser caused redirects to chromnius.download whenever users opened a new tab/window or entered search queries in the URL bar.

chromnius.download virus

Chromnius.download

Illegitimate search engines usually fail to generate search results and redirect users to genuine ones. Chromnius.download is no exception; during our research, it redirected users to the legitimate Yahoo search engine (search.yahoo.com).

Furthermore, Chromnius likely gathers sensitive information since data tracking functionalities are common in PUAs, including adware and browser hijackers.

The collected information may include visited URLs, viewed webpages, searched queries, usernames/passwords, personally identifiable details, finance-related data, and more. This collected data can potentially be shared with or sold to third parties, including cyber criminals.

To summarize, the presence of software like Chromnius on devices can lead to system infections, serious privacy issues, financial losses, and even identity theft.

Name Ads by Chromnius
Detection PUP.Optional.Chromnius
Sites chromnius.download, zipsearch.xyz
Damage System infections, privacy breaches, financial losses, and potential identity theft.

Examples of rogue browsers

We have analyzed numerous samples of untrustworthy software, including Wave Browser, Cent, and ShieldBrowser, among others.

Software like Chromnius typically disguises itself as legitimate and harmless, enticing users to download and install it by promising “handy” and “advantageous” functionalities. However, these functions rarely work as advertised and are often completely non-operational.

How did Chromnius get installed on my computer?

We downloaded Chromnius from its “official” download webpage, which turned out to be a deceptive site promoting this browser. Most users come across such websites due to redirects caused by mistyped URLs, pages using rogue advertising networks, intrusive ads, spam browser notifications, or installed adware with browser force-opening capabilities.

However, this type of software can also be distributed through other dubious and deceptive methods. “Bundling” is a marketing technique that involves pre-packaging regular installers with unwanted or malicious additions. Downloading from untrustworthy sources like unofficial and freeware sites, Peer-to-Peer sharing networks, etc., and rushing through installations using “Quick/Easy” settings increases the risk of allowing bundled content onto your device.

Intrusive advertisements are another common method of proliferating unwanted software. Clicking on these ads can trigger scripts that stealthily download and install the software.

How to avoid installing unwanted applications?

We strongly recommend researching software and downloading only from official and verified channels. When installing software, it is crucial to read the terms, examine available options, use the “Custom/Advanced” settings, and decline all supplementary apps, extensions, etc. Vigilance is advised while browsing, as fraudulent and malicious content often masquerades as legitimate.

How to remove the Chromnius from my PC?

Frequently Asked Questions (FAQ)

What is Chromnius?
This is a rogue browser based on the Chromium open-source project, known for its adware and browser hijacking functionalities.
How does Chromnius affect my computer?
It can impact your computer by displaying intrusive advertisements, promoting fake search engines, collecting sensitive information, and potentially leading to system infections and privacy issues.
How does Chromnius get installed on my computer?
It can be downloaded from deceptive websites or distributed through methods like mistyped URL redirects, rogue advertising networks, intrusive ads, spam browser notifications, and bundled software.
What are the risks associated with Chromnius?
The risks of having Chromnius on your computer include system infections, compromised privacy, financial losses, and the potential for identity theft.
Can Chromnius be classified as a Potentially Unwanted Application (PUA)?
Yes, Chromnius is considered a Potentially Unwanted Application (PUA) due to its characteristics as adware and its tendency to be downloaded unintentionally by most users.
How can I avoid installing unwanted applications like Chromnius?
To avoid installing unwanted applications, it is recommended to research software, download from official and verified sources, carefully read terms and options during installation, use the “Custom/Advanced” settings, and decline any supplementary apps or extensions.
What should I do if my computer is infected with Chromnius?
If your computer is infected with Chromnius, it is advisable to remove any suspicious applications, browser extensions, or plug-ins and consider running a scan with an
Can Chromnius cause damage to my privacy?
Yes, it can pose a threat to your privacy as it has the ability to collect sensitive information, including visited URLs, search queries, usernames/passwords, personally identifiable details, and finance-related data.
Are there any other examples of rogue browsers similar to Chromnius?
Yes, other examples of rogue browsers similar to Chromnius include ClearBrowser, CryptoTab Browser, Cent, and ShieldBrowser, among others.
How can I protect my computer from threats like Chromnius?
To protect your computer from threats like Chromnius, it is recommended to use reliable

References

  1. More about open-source Chromium project: https://www.chromium.org

About the author

Daniel Zimmerman

Cybersecurity writer focused on scam websites, phishing pages, and suspicious online services. Daniel checks domain behavior, user-risk signals, and practical next steps before publishing scam reports.

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