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How to eliminate the adverts delivered by the bestsystemav.xyz site

Also Known As: Ads by bestsystemav.xyz
Damage level: Medium

What kind of page is bestsystemav[.]xyz?

Bestsystemav[.]xyz is a site that loads deceptive content, pushes its browser notifications, and redirects visitors to other untrustworthy or malicious webpages. Sites like bestsystemav[.]xyz are accessed inadvertently, primarily via other pages that use rogue advertising networks.

bestsystemav[.]xyz pop-up redirects

Bestsystemav[.]xyz overview

Bestsystemav[.]xyz and websites akin to it have their behavior (e.g., hosted/promoted content) depend on visitors' IP addresses/ geolocations. The webpage in question has been observed promoting the "McAfee - Your PC is infected with 5 viruses!" scam.

Additionally, bestsystemav[.]xyz requests visitors to allow its browser notifications. If permitted, the page will start delivering intrusive advert campaigns (i.e., display notifications). These ads endorse unreliable and harmful websites, scams, and untrustworthy/malicious apps. It is noteworthy that the developers of legitimate content promoted through these notifications are not responsible, as this is done via affiliate programs.

Threat Summary:
Name Ads by bestsystemav.xyz
Threat Type Push notifications ads, Unwanted ads, Pop-up ads
Detection Names ESET (Malware), Forcepoint ThreatSeeker (Suspicious), Full List Of Detections (VirusTotal)
Symptoms Seeing advertisements not originating from the sites you are browsing. Intrusive pop-up ads. Decreased Internet browsing speed.
Distribution Methods Deceptive pop-up ads, false claims within visited websites, potentially unwanted applications (adware)
Damage Decreased computer performance, browser tracking - privacy issues, possible additional malware infections.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
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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.

Browser notification spam in general

There are thousands of sites similar to bestsystemav[.]xyz online; youtubecenter.net, profitedsurvey.site, myhypeposts.com, and mydesktopdefence.com are just some examples.

The browser notifications originating from these webpages usually promote dubious and malicious content, but they are also commonly used in affiliate programs to endorse genuine products. The scammers (affiliates) advertise the former to receive illegitimate commissions.

How did bestsystemav[.]xyz gain permission to deliver spam notifications?

Websites deliver browser notifications with user consent. In other words, when visitors click the "Allow", "Allow Notifications", or similar buttons/options - they enable the site to display this graphical content. It is noteworthy that most rogue pages use deception (e.g., clickbait, fake CAPTCHA verification, etc.) to trick users into allowing their notifications.

How to prevent deceptive sites from delivering spam notifications?

To avoid receiving unsolicited browser notifications, avoid clicking "Allow", "Allow Notifications", or other consent options. Instead, notification requests must be ignored or denied (e.g., "Block", "Block Notifications", etc.).

Should a browser be force-opening suspect websites (e.g., bestsystemav[.]xyz), it is likely due to adware installed onto the system. If your computer is already infected with rogue applications, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.

Appearance of the bestsystemav[.]xyz website (GIF):

bestsystemav[.]xyz website appearance (GIF)

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer 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:

Disable unwanted browser notifications:

Video showing how to disable web browser notifications:

Google Chrome logoRemove spam notifications from Google Chrome:

Click the Menu button (three dots) on the right upper corner of the screen and select "Settings". In the opened window select "Privacy and security", then click on "Site Settings" and choose "Notifications".

Disable web browser notifications in Google Chrome (step 1)

In the "Allowed to send notifications" list search for websites that you want to stop receiving notifications from. Click on the three dots icon near the website URL and click "Block" or "Remove" (if you click "Remove" and visit the malicious site once more, it will ask to enable notifications again).

Disable web browser notifications in Google Chrome (step 2)

Android logoRemove spam notifications from Google Chrome (Android):

Tap the Menu button (three dots) on the right upper corner of the screen and select "Settings". Scroll down, tap on "Site settings" and then "Notifications".

Disable web browser notifications in Google Chrome - Android (step 1)

In the opened window, locate all suspicious URLs and tap on them one-by-one. Once the pop-up shows up, select either "Block" or "Remove" (if you tap "Remove" and visit the malicious site once more, it will ask to enable notifications again).

Disable web browser notifications in Google Chrome - Android (step 2)

Mozilla Firefox logoRemove spam notifications from Mozilla Firefox:

Click the Menu button (three bars) on the right upper corner of the screen. Select "Settings" and click on "Privacy & Security" in the toolbar on the left hand side of the screen. Scroll down to the "Permissions" section and click the "Settings" button next to "Notifications".

Disable web browser notifications in Mozilla Firefox (step 1)

In the opened window, locate all suspicious URLs and block them using the drop-down menu or either remove them by clicking "Remove Website" at the bottom of the window (if you click "Remove Website" and visit the malicious site once more, it will ask to enable notifications again).

Disable web browser notifications in Mozilla Firefox (step 2)

Microsoft Edge logoRemove spam notifications from Microsoft Edge:

Click the menu button (three dots) on the right upper corner of the Edge window and select "Settings". Click on "Cookies and site permissions" in the toolbar on the left hand side of the screen and select "Notifications".

Disable web browser notifications in Microsoft Edge (step 1)

Click three dots on the right hand side of each suspicious URL under "Allow" section and click "Block" or "Remove" (if you click "Remove" and visit the malicious site once more, it will ask to enable notifications again).

Disable web browser notifications in Microsoft Edge (step 2)

Safari logoRemove spam notifications from Safari (macOS):

Click "Safari" button on the left upper corner of the screen and select "Preferences...". Select the "Websites" tab and then select "Notifications" section on the left pane.

Disable web browser notifications in Safari - macOS (step 1)

Check for suspicious URLs and apply the "Deny" option using the drop-down menu or either remove them by clicking "Remove" at the bottom of the window (if you click "Remove" and visit the malicious site once more, it will ask to enable notifications again)

Disable web browser notifications in Safari - macOS (step 2)

How to avoid browser notification spam?

Internet users should be very skeptical when being asked to allow notifications. While this is a useful feature that allows you to receive timely news from websites you like, deceptive marketers frequently abuse it.

Only allow notifications from websites that you fully trust. For added security - use an anti-malware application with a real-time web browsing monitor to block shady websites that tries to trick you into allowing spam notifications. We recommend using Combo Cleaner Antivirus for Windows.

Frequently Asked Questions (FAQ)

Why am I seeing ads (browser notifications) delivered by bestsystemav[.]xyz in the right lower corner of my desktop?

Sites deliver browser notifications when they are allowed. Hence, you've likely visited bestsystemav[.]xyz and permitted it to display its notifications. Note that such websites often employ deceptive content to trick visitors into doing so.

I have clicked on notification ads, is my computer infected?

No, browser notifications are not used in malvertising. However, the websites and software pushed through these adverts can be dubious/malicious and cause various issues (including system infections).

Is bestsystemav[.]xyz a virus?

No, bestsystemav[.]xyz is not categorized as a virus. However, sites of this type are commonly used to promote other unreliable/malicious webpages, online scams, unwanted/harmful software, and even malware.

Will Combo Cleaner remove bestsystemav[.]xyz ads automatically or manual steps are still required?

Yes, Combo Cleaner can scan devices and undo the permissions granted for the bestsystemav[.]xyz website. Additionally, it is capable of blocking all further access to this and other rogue/malicious sites. Therefore, no extra steps will be required.

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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Software uninstall instructions
Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

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