Weknow.ac is search engine redirect and browser hijacker, that attacks Safari, Google Chrome, Mozilla Firefox. Website is set up as homepage, new tab and default search engine. However, user search queries are redirected to webcrawler.com, which is known browser hijacker. Weknow.ac is often accompanied by browser extensions, that controls settings and can have random name. Having potentially unwanted add-on, can be dangerous for privacy as hijacker collects browser data and use it for commercial purposes.
If your computer started acting weird and you see All-Radio 4.27 Portable program installed on your computer, this is cause for action. According to malware research, this, at first sight, harmless utility is, in fact, Pandora box opened on your computer. It infects your PC with a rootkit, a miner, a clipboard hijacker, a spammer, and information stealing trojan. Among first actions, we recommend changing passwords in any logged-in accounts from other safe machine. After this make backup of sensitive files, photos, documents, e-mails. After this you can use malware removal software.
GandCrab V4 Ransomware fourth generation of notorious GandCrab Ransomware. Virus uses complex combination of AES-256 (CBC-mode), RSA-2048 and Salsa20 encryption algorithms. This particular version adds .KRAB extension to encrypted files and creates slightly different ransom note called KRAB-DECRYPT.txt. GandCrab V4 Ransomware demands ransom in BitCoins. Usually, it varies from $200 to $1000. Malware encrypts all types of files except ones in the whitelist and some necessary for Windows operation. All photos, documents, videos, databases get exncrypted after indection. Virus uses WMIC.exe shadowcopy delete command to remove shadow copies and reduce the chances of recovery. Unfortunately, at the moment we write this article, current decryption tools cannot decrypt GandCrab V4 Ransomware, but we will still provide links to this utilities as they can be updated any day.
Search.lavradoor.com is precarious search engine, that is installed in Safari, Google Chrome and Mozilla Firefox on Mac computers. Hijackers installs extension called “Lavradoor” in your browsers and this add-on controls and modifies your search and homepage settings. Settings cannot be changed unless extension is removed. Search.lavradoor.com redirects user queries to search.yahoo.com. Programs like this make your browsing history, search queries an open book to advertisers.