RT4BLOCK is high-risk malware categorized as ransomware. Typically, programs of this type block access to data (encrypt files) and keep them locked unless a ransom is paid. RT4BLOCK is a part of the RotorCrypt ransomware family and was discovered by Michael Gillespie. It changes filenames of encr
"We Detected Unwanted Pop-Ups on Your Mac" is one of many scam websites that trick people into contacting scammers via a telephone number provided. This web page states that it has detected adware that can be removed with the help of their tech support (in fact, these are scammers who pose as "A
Ntuseg is high-risk ransomware discovered by Michael Gillespie and belonging to the Djvu ransomware family. After successful infiltration, Ntuseg encrypts most files, thereby rendering them unusable. In doing so, Ntuseg adds the ".ntuseg" appendix (hence its name) to the name of each file. For ex
"Windows Antivirus - Critical Alert" is categorized as tech-support scam. Scams of this type attempt to trick people into believing that their computers and personal details are at risk, and they encourage them to call the telephone number provided. Typically, scammers promote these so-called 'se
First discovered by Jakub Kroustek and belonging to the Dharma ransomware family, Acuf2 is a high-risk infection designed to encrypt files, thereby rendering them unusable. During encryption, Acuf2 also appends each filename with the victim's unique ID, developer's email address, and ".Acuf2" exte
Limbo is the name of ransomware that prevents victims from accessing their files. The cyber criminals who designed Limbo use it to blackmail people in return for a decryption tool (they demand payment of a ransom). This ransomware is a new variant of Ouroboros and was discovered by GrujaRS. Limbo
Chekyshka ransomware encrypts files stored on computer systems. People with computers infected with Chekyshka cannot access their data unless a decryption tool or key is purchased. Typically, the only people who can provide keys/tools are the ransomware developers. Chekyshka targets network-attach
Discovered by GrujaRS, UNNAMED is an updated variant of high-risk ransomware called Kraken Cryptor. The purpose of UNNAMED is to encrypt most stored files, whilst appending filenames with the victim's unique ID, developer's email address, and ".UNNAMED" extension. For example, "sample.jpg" might
First discovered by Michael Gillespie, Wulfric is a high-risk ransomware infection designed to compromise (encrypt data) so that developers are able to blackmail victims by offering paid recovery of their files. During encryption, Wulfric renames each file to a three-digit hexadecimal number and
RevengeRAT (also known as Revetrat) is high-risk computer infection categorized as a remote access trojan (RAT). The purpose of this malware is to provide cyber criminals with remote access to the infected machine and allow them to manipulate it. Research shows that cyber criminals proliferate th