Infected email attachments (macros), torrent websites, malicious ads.Īll files are encrypted and cannot be opened without paying a ransom. Cyber criminals demand payment of a ransom (usually in bitcoins) to unlock your files. A ransom demand message is displayed on your desktop. Threat Summary: NameĪvast (Win32:RansomX-gen ), Combo Cleaner (IL:Trojan.MSILZilla.5554), ESET-NOD32 (A Variant Of MSIL/Filecoder.AGP), Kaspersky (HEUR:), Microsoft (Ransom:MSIL/FileCoder.AD!MTB), Full List Of Detections ( VirusTotal)Ĭannot open files stored on your computer, previously functional files now have a different extension (for example, my.docx.locked). Users infect computers via emails by opening malicious attachments or files downloaded from websites presented in malicious emails.įake updaters can infect computers in two ways: by injecting malware instead of updating/fixing software or exploiting vulnerabilities in certain outdated software that users have installed on their computers. In most cases, users infect computers with ransomware through emails, software cracking tools/installers for cracked software, files downloaded from unreliable sources, Trojans, fake updaters. Usually, victims can avoid data loss only if they have a data backup. Most variants share the same key qualities. More examples of different ransomware variants are Zaqi, KTC, Eeyee. Ransomware encrypts files and generates a ransom note (or multiple ransom notes) containing contact and payment information. For this reason, it should be removed from the already infected computers immediately. Ransomware is a type of malware that can cause further encryptions and infections: it can encrypt new files and infect other computers on a local network. Paying a ransom should not be considered as an option because cybercriminals may not provide a decryption tool. In most cases, victims can restore files without paying a ransom only when they have a data backup or a working third-party decryption tool. It also contains the email address that victims are supposed to contact the attackers for more information. It says that victims have to pay $3,550 (or 0.065 BTC) for data decryption. The "Attention Please.txt" file is a ransom note stating that victims cannot decrypt files without the help of attackers. Screenshot of files encrypted by this ransomware: crackvirus" extension to filenames (for example, renames " 1.jpg" to " 1.jpg.crackvirus", " file.doc" to " "), creates the " Attention Please.txt" file and changes the desktop wallpaper. Crackvirus is the name of ransomware - a form of malware designed to encrypt files.
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