"YOUR COMPUTER HAS BEEN BLOCKED" is fake pop-ups alert or message, that may appear in Google Chrome, Mozilla Firefox, Edge or Internet Explorer. It is categorized as Tech support scam, as in many cases it compels or provokes users to dial some "toll free" number. Virus can imitate virus infection or Windows error directly in browser. On the other end of the line you will hear an experienced Indian fraudster, who will introduce himeself as "technical support specialist", who will encourage you to pay cetain fee to fix problems with your computer, that did not ever existed. "YOUR COMPUTER HAS BEEN BLOCKED" pop-up has many variations of design, texts and reasons of its appearance can also be different. In some cases, such alerts may offer some rubbish "windows optimization" software for download.
Letsupdateourdomain.com is used for ad serving, pop-ups display and creation of redirects in Google Chrome, Mozilla Firefox and Internet Explorer. If you see Letsupdateourdomain.com advertising on a regular basis, this is clear indication, that your computer is infected with adware. Using browsers, infected with such malwar, becomes real nightmare. Letsupdateourdomain.com may redirect to sites with adult content, gambling sites and online casinos, phishing bank pages or to popular shopping sites like GearBest, Amazon and others. Users should evade clicking malicious ads by all means, as it can lead to disastrous results.
Cpamatik.com (a.k.a 16.cpamatik.com, 40.cpamatik.com, 82.cpamatik.com) is random domain, used by internet advertising companies to push notifications, pop-ups and create redirects in Safari, Google Chrome or Mozilla Firefox. Page contains message If you are 18+ tap "Allow" to access website content with call-to-action for allowing notifications in browsers and downloading software. Ads from Cpamatik.com can mean only one thing - your computer is infected by adware. Threat may be represented by browser extension, Mac or Windows application.
Spreediscount.com is advertising website, that is used by malefactors to display pop-ups and create redirects in Safari or Chrome browsers on MacOS or iOS. Usually, pop-up from Spreediscount.com imitates Amazon storefront page, with messages like: "You've won a free Iphone X!", "You are lucky today". This scam page offers $1000 Gift Card, iPhone X or Samsung S9 for completing simple survey. Of course, in the end all that user gets is malicious download. Those ads can be result of Mac/iPhone/iPad infection, or they can appear on some infected websites you visit.
Rementoolsr.club is domain used for displaying ads, pop-ups and redirects in Google Chrome, Mozilla Firefox, Internet Explorer and Safari. The purpose of this ads is to gain subscription, so Rementoolsr.club can be called "social engineering virus". After users click "Allow" button, they will receive numerous push alerts in browser that are really unwelcome. Besides, redirects may promote software and goods of low quality. Ads by Rementoolsr.club are powered by browser extension or desktop application. Once you find and remove program causing it you will get rid of pop-ups. Malware hides itself under neutral or common names and inside system folders.
Pop-ups and redirects from Invictioner.club (or subdomains like home.invictioner.club, tx8t.invictioner.club etc.) in Google Chrome, Mozilla Firefox, Internet Explorer or Safari browsers indicate adware infection. Ads from this website may appear randomly, while users navigate the web and ask permission to display notification. Depending on location and time pop-ups may contain messages like: If you are 18+ tap Allow or Please tap the Allow button to continue. If user allows notifications he will be bombarded with alerts in the right-bottom corner of the browser window. Usually, redirects by Invictioner.club are controlled by malicious browser add-on or some desktop program. It is difficult to determine, what program causes this, as it can have random names.