Ransomware is computer malware which holds a computer system, or the data it contains, hostage against its user by demanding a ransom for its restoration.
by batn00b November 29, 2009
Ransomware is a very destructive and annoying type of malware that holds your computer and/or its files hostage. The malware then asks to pay a certain amount in bitcoins to the authors in order to re-gain access. Some known variants such as Mischa, CryptoWall, and Locky will encrypt each and every one of your files with extensions such as .mp3, .txt, .html, .jpg, .png, .mp4 and so on. The encryption used is commonly RSA with key strengths of either 2048 or 4096 bits. Only the private key can be used to decrypt the files, which the authors hold on their servers or botnets. Without it, decryption is virtually impossible. However, some older ransomwares have been cracked or decommissioned which led to the spawning of decryption tools or leaked master decryption keys. Ways this malware spreads is either through exploit kits, email attachments, bad downloads, or through other trojans or botnets. To avoid infection, keep software up to date and have at least 1 solid antivirus (not including windows defender).
by Spotlightsrule October 05, 2016