BugsFighter

Quite recently, hackers found a new Windows vulnerability to aid the penetration of systems with malware. The exploit is inherently related to MSDT (Microsoft Support Diagnostic Tool) and allows cybercriminals to perform various actions by deploying commands through the PowerShell console. It was therefore called Follina and assigned this tracker code CVE-2022-30190. According to some reputable experts who researched this problem, the exploit ends up successful once users open malicious Word files. Threat actors use Word’s remote template feature to request an HTML file from a remote web server. Following this, attackers get access to running PowerShell commands to install malware, manipulate system-stored data as well as run other malicious actions. The exploit is also immune to any antivirus protection, ignoring all safety protocols and allowing infections to sneak undetected. Microsoft does work on the exploit solution and promises to roll out a fix update as soon as possible. We thus recommend you constantly check your system for new updates and install them eventually. Before that, we can guide you through the official resolution method suggested by Microsoft. The method is to disable the MSDT URL protocol, which will prevent further risks from being exploited until an update appears.

Often mistaken by a separate virus, messages spamming Google Calendar events are actually related to a malicious/unwanted app that might be running on your Android device. Many victims complain that messages usually appear all over the calendar and attempt to persuade users into clicking on deceptive links. It is likely that after an unwanted application was installed, users experiencing spam at the moment granted access to certain features including permissions to modify Google Calendar events. The links may therefore lead to external websites designed to install malware and other types of infections. In fact, whatever information claimed by them ("severe virus detected"; "virus alert"; "clear your device", etc.) is most likely fake and has nothing to do with reality. In order to fix this and prevent your calendar from being cluttered with such spam messages, it is important to find and remove an application causing the issue and reset the calendar to clean up unwanted events.

VLC Addon tries to exploit users' familiarity with the legitimate VLC Media Player. In fact, it is fake and has nothing to do with the original program. Upon successful installation into a browser, the rogue extension triggers excessive generation of intrusive and suspicious ads across various pages. Since VLC Addon has access to essential browser features, it may also be able to surveil personal data (e.g. passwords, IP-addresses, geolocations, etc.) and collect it for monetary incentives. Having such an unwanted add-on installed might bear potential privacy and security risks causing malware proliferations, for instance. It is thus important to make everything sure no such activity continues its functioning inside the system. Follow our guide below to perform complete removal and leave no traces behind it.

Trusted-captcha.top is a malicious website, that hosts phishing and fraudulent pages and subdomains, that trick user into subscribing to unwanted notifications in Google Chrome, Mozilla Firefox, Safari, Edge, Internet Explorer browsers, running on Windows, Mac or Android. Users land on websites like Trusted-captcha.top after multiple misleading redirects after visiting questionable online resources. After this, users start getting ads, pop-ups, tech support scam messages on their desktops. This text offers users to subscribe to notifications from this site, to be able to watch the content. At the same time, browsers show a default dialog box with options to allow or block notifications from the site you are visiting. If a person clicks on the "Allow" button, users will start receiving unwanted pop-up ads from Trusted-captcha.top directly on the desktop even when the browser is closed. This tutorial describes ways to remove Trusted-captcha.top and stop ads, pop-ups, and notifications from such sites.

Freecaptcha.top is another domain, used for social engineering attack. The main purpose of its developers is to create push-notifications in Google Chrome, Safari, Edge, and Mozilla Firefox, and display ads and pop-ups in those browsers. The website shows the page stating that you need to "Click "Allow" to confirm that you are not a robot". Malware can also perform redirects to advertising pages. Freecaptcha.top is one of the thousands of temporarily websites, used by large advertising network. Users grant access to show push notifications for Freecaptcha.top occasionally. Website, encourages people to click Allow button, using vague wording and false information. Once the site is allowed to do it, it becomes harder to eliminate it, as it may install adware on the PC and the consequences can be more severe. Use these simple instructions to remove Freecaptcha.top adware and get rid of push notifications.

Also known as R.Ransomware, Rozbeh is a ransomware infection that encrypts system-stored data to blackmail victims into paying money for its recovery. During encryption, it highlights blocked data by assigning random characters consisting of four symbols. For instance, a file like 1.pdf may change to 1.pdf.1ytu, 1.png to 1.png.7ufr, and so forth. Depending on what version of Rozbeh Ransomware made an attack on your system, instructions explaining how data can be recovered may be presented within text notes read_it.txt, readme.txt, or even in a separate pop-up window. It is also worth noting that the most recent ransom infection developed by Rozbeh swindlers is called Quax0r. Unlike other versions, it does not rename encrypted data and also displays its decryption guidelines in Command Prompt. In general, all the ransom notes mentioned above contain identical patterns of guiding victims to pay the ransom - contact malware creators through Discord or, in some cases, by e-mail and send 1 Bitcoin (about $29,000 now) to the crypto address of cybercriminals. After the payment is done, extortionists promise to send a file decryptor along with the necessary key to unlock encrypted data. Unfortunately, in the majority of cases, encryption methods used by cybercriminals to render files inaccessible are complex, making manual decryption near-impossible. You can give it a try using some third-party instruments in our tutorial below, however, we are unable to guarantee they will actually work.

ZareuS is the name of a ransomware infection that encrypts files and extorts an amount in crypto from victims. During encryption, the virus alters file appearance using the .ZareuS extension. In other words, if a file like 1.pdf ends up affected by the infection, it will be changed to 1.pdf.ZareuS and reset its original icon as well. Thereafter, to guide victims through the decryption process, cybercriminals create a text file called HELP_DECRYPT_YOUR_FILES.txt to each folder with no longer accessible data. It says the encryption occurred with the use of strong RSA algorithms. Victims are therefore instructed to buy a special decryption key, which costs 980$ and the amount has to be sent to the cybercriminals' crypto address. After doing so, victims have to notify about the completed payment by writing to lock-ransom@protonmail.com (e-mail address provided by the attackers). As an additional measure to incentivize victims into paying the ransom, extortionists propose to decrypt 1 file for free. Victims can do it and receive one file fully unlocked to confirm that decryption actually works. It is unfortunate to say this, but files encrypted by ZareuS Ransomware are almost impossible to decrypt without the help of cybercriminals. It may be only if ransomware is bugged, contains flaws, or other drawbacks alleviating third-party decryption. A better and guaranteed method to get back your data is to recover it using backup copies. If such are available on some non-infected external storage, you can easily substitute your encrypted files with them.

Custom Search Bar is most often a browser extension that promotes unwanted features without the consent of users. It changes the default homepage URL-address to customsearchbar.me and redirects users through one of the most popular search engines, such as Yahoo.com. Software with this post-installation behavior falls under the category of browser hijackers. It brings no real value to users, at least due to the lack of authentic features. As said, instead of generating its own results, customsearchbar.me will redirect users to Yahoo.com or other legitimate search engines. Browser hijackers tend to exploit the usage of popular search platforms to generate fake traffic and earn additional revenues. Due to the fact that Custom Search Bar is given reading permissions, it may also be able to capture what users enter while visiting various websites (e.g. passwords, IP-addresses, geolocations, log-in credentials, etc.). In addition to this, it is worth mentioning that some browser hijackers have adware features as well. This means the generation of unwanted and suspicious ads that appear in random places across different websites. Note that Custom Search Bar is quite a generic name that can be used by other browser hijackers as well. If you became a victim of Custom Search Bar or anything similar, we recommend you follow our guide below to stop it from working. Many users struggle to do it on their own, as such extensions are often backed by additional changes in system settings disallowing their traditional removal.