How to remove "Klio Verfair Tools" unwanted app

What kind of application is Klio Verfair Tools?

While analyzing a rogue installer, our researchers discovered the "Klio Verfair Tools" PUA (Potentially Unwanted Application). This app is designed to infiltrate the Legion Loader malware into systems.

At the time of research, Klio Verfair Tools was installed together with another PUA called SumatraPDF. It is noteworthy that installation setups carrying software like Klio Verfair Tools often include additional suspicious/harmful programs.

Klio Verfair Tools overview

Potentially Unwanted Applications (PUAs) tend to have harmful functionalities. Klio Verfair Tools is designed to introduce the Legion Loader malware into devices (i.e., act as a dropper). This loader aims to cause chain infections.

Legion Loader has been observed installing various trojans, data stealers, ransomware, cryptocurrency miners, and malicious browser extensions. The known Google Chrome extensions operated by monitoring browsing activity and collecting related data, extracting email contents, and functioning as proxyware (i.e., turning browsers into HTTP proxies to abuse Internet resources).

As mentioned in the introduction, installers like the one carrying Klio Verfair Tools often include other programs. This unwanted application was installed alongside the SumatraPDF PUA on our test machine.

In summary, the presence of software like Klio Verfair Tools on devices can lead to system infections, severe privacy issues, financial losses, and identity theft.

Threat Summary:

Name	Klio Verfair Tools potentially unwanted application
Threat Type	PUP (Potentially Unwanted Program), PUA (Potentially Unwanted Application), Dropper.
Detection Names (installer)	NANO-Antivirus (Trojan.Win32.Injuke.kudqxk), Skyhigh (SWG) (Artemis!Trojan), Full List Of Detections (VirusTotal)
Payload	Legion Loader
Symptoms	A program that you do not recall installing suddenly appeared on your computer. Seeing advertisements not originating from the sites you are browsing. Intrusive pop-up ads. Rogue redirects. Decreased Internet browsing speed.
Distribution Methods	Deceptive pop-up ads, free software installers (bundling).
Related Domains	getpremiumapp[.]monster
Damage	Multiple system infections, potential monetary loss, privacy issues, slow computer performance.
Malware Removal (Windows)	To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner. ▼ Download Combo Cleaner To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

Potentially unwanted application examples

We have examined numerous unwanted apps; Caveqn App, Roxaq Apps, Cuiall Apps, Kiicvoq Apps, and Tiaoq App are merely some of our latest articles on ones that act as droppers for Legion Loader.

As previously mentioned, PUAs tend to have hazardous abilities, including data tracking, displaying advertisements (adware), and modifying browsers (browser hijackers). Unwanted software often appears legitimate and offers useful features, which seldom operate as promised, and in most cases – they do not work at all.

How did potentially unwanted applications install on my computer?

We downloaded an installation setup containing Klio Verfair Tools (and SumatraPDF) from getpremiumapp[.]monster – a rogue webpage.

PUAs are endorsed on various sites, both legitimate-looking promotional ones and scam pages. They are primarily accessed via redirects caused by websites that utilize rogue advertising networks, intrusive ads, spam browser notifications, and adware (with browser force-opening capabilities).

"Bundling" – packing regular program installers with unwanted/malicious additions – is also used to proliferate PUAs. Downloading from untrustworthy sources (e.g., freeware and third-party sites, P2P sharing networks, etc.) and rushing through installations (e.g., ignoring terms, using "Easy/Quick" settings, etc.) – increase the risk of inadvertently allowing bundled content into the system.

Additionally, unwanted software is spread by intrusive adverts. When clicked on, some of these advertisements can execute scripts to perform stealthy downloads/installations.

How to avoid installation of potentially unwanted applications?

It is important to research software before downloading or purchasing. We recommend downloading only from official and trustworthy channels. When installing, it is essential to read terms, study possible options, use the "Custom" or "Advanced" settings, and opt out of all supplementary apps, extensions, features, etc.

Another recommendation is to be vigilant when browsing since fraudulent and malicious online content usually appears legitimate and harmless. For example, while intrusive adverts may look innocuous – they redirect to unreliable and questionable websites (e.g., gambling, scam-promoting, adult dating, etc.).

Should you keep encountering ads/redirects of this kind, check the system and immediately remove all suspect applications and browser extensions/plug-ins. If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.

Rogue website (getpremiumapp[.]monster) promoting Klio Verfair Tools application:

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
▼ DOWNLOAD Combo Cleaner By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

Quick menu:

• What is Klio Verfair Tools?
• STEP 1. Uninstall deceptive applications using Control Panel.
• STEP 2. Remove rogue extensions from Google Chrome.
• STEP 3. Remove potentially unwanted plug-ins from Mozilla Firefox.
• STEP 4. Remove rogue extensions from Safari.
• STEP 5. Remove rogue plug-ins from Microsoft Edge.

Removal of potentially unwanted applications:

Windows 11 users:

Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.

Windows 10 users:

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Windows 7 users:

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

In the uninstall programs window, look for "Klio Verfair Tools" and other suspicious/recently-installed applications, select these entries and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted application, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove rogue extensions from Internet browsers:

At time of research, Klio Verfair Tools was installed together with the SumatraPDF PUA. It is not uncommon for unwanted applications to infiltrate systems alongside adware, browser hijackers, and other suspicious software. If you experience unwanted ads or redirects when browsing the Internet, continue with the removal guide below.

Video showing how to remove potentially unwanted browser add-ons:

Remove malicious extensions from Google Chrome:

Click the Chrome menu icon (at the top right corner of Google Chrome), select "More Tools" and click "Extensions". Locate all recently-installed suspicious extensions, select these entries and click "Remove".

Optional method:

If you continue to have problems with removal of the klio verfair tools potentially unwanted application, reset your Google Chrome browser settings. Click the Chrome menu icon  (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Remove malicious plugins from Mozilla Firefox:

Click the Firefox menu (at the top right corner of the main window), select "Add-ons and themes". Click "Extensions", in the opened window locate all recently-installed suspicious extensions, click on the three dots and then click "Remove".

Optional method:

Computer users who have problems with klio verfair tools potentially unwanted application removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.

Select Troubleshooting Information.

In the opened window, click the Refresh Firefox button.

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Remove malicious extensions from Safari:

Make sure your Safari browser is active, click Safari menu, and select Preferences....

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

In the opened window select all history and click the Clear History button.

Remove malicious extensions from Microsoft Edge:

Click the Edge menu icon  (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.

Optional method:

If you continue to have problems with removal of the klio verfair tools potentially unwanted application, reset your Microsoft Edge browser settings. Click the Edge menu icon  (at the top right corner of Microsoft Edge) and select Settings.

In the opened settings menu select Reset settings.

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

• If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Summary:

Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

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Frequently Asked Questions (FAQ)

What is the purpose of an unwanted application?

Unwanted applications aim to generate revenue for their developers/publishers and tend to do so through nefarious means. For example, software within this classification may cause chain infections, endorse content (via ads, redirects, etc.), deceive users into purchasing fake activation keys, promote suspicious in-app purchases, gather/sell private information, and so on.

Are unwanted applications legal?

Typically, unwanted applications are considered legal due to their End User License Agreements (EULAs) providing information concerning the software's behavior.

Is having Klio Verfair Tools installed on my computer dangerous?

Klio Verfair Tools acts as a dropper for the Legion Loader malware, which can cause trojan, ransomware, cryptominer, and other types of infections. Hence, this unwanted app can cause multiple system infections, serious privacy issues, financial losses, and identity theft.

Will Combo Cleaner help me remove Klio Verfair Tools unwanted application?

Combo Cleaner is designed to detect and eliminate all kinds of threats, including unwanted and malicious applications. Keep in mind that manual removal (performed without security programs) might not be an ideal solution. Following manual removal, various remnants (files) can get left behind and continue to run. It must be stressed that since sophisticated malware tends to hide deep within systems – therefore, running a full system scan is essential for detection.

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