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The Evolution and History of TeslaCrypt Ransomware The Virus

TeslaCrypt is a ransomware program that encrypts files. program designed for all Windows versions, including Windows Vista, Windows XP, Windows 7 and Windows 8. The ransomware application was first released towards the end February 2015. TeslaCrypt is a virus that infects your computer and looks for data files to encrypt.



When all your data files are infected, a program will be displayed. It will provide information on how to recover them. There is a hyperlink in the instructions to connect you to the TOR Decryption Service website. This site will provide information about the current ransom amount, the number of files are encrypted, and how to make payment so your files can be released. The ransom amount typically starts at $500. It can be paid in Bitcoins. Each customer will have a unique Bitcoin address.



Once TeslaCrypt is installed on your computer, it generates an executable that is randomly labeled in the %AppData% directory. The executable launches and examines your drive letters for files that can be encrypted. It attaches an extension to the name of each supported data file it locates. This name is determined by the version that has affected your system. With the release of new versions of TeslaCrypt it uses different file extensions for encrypted files. TeslaCrypt currently employs the following extensions to encrypted files:.cccc..abc..aaa..zzz..xyz. You could use TeslaDecoder to decrypt encrypted files for free. It's dependent on which version of TeslaCrypt is infected.



It is important to note that TeslaCrypt will look through all drive letters on your computer to find files to encrypt. It can be used to encrypt network shares, DropBox mappings, and removable drives. It only targets network shares ' data files if the network share is marked as a drive letter on your computer. If you haven't mapped the network share as a drive-letter, the ransomware will not encrypt the files on that network share. Once it has completed scanning your PC, it will erase all Shadow Volume Copies. This prevents you from restoring affected files. The ransomware's version is indicated by the application title that appears after encryption.



How your computer gets infected with TeslaCrypt



TeslaCrypt infects computers if the user visits a hacked site that has an exploit kit and old software. Developers hack websites to distribute the malware. An exploit kit is a software program that they install. This kit seeks to take an advantage of weaknesses in the programs of your computer. Some of the programs with vulnerabilities are commonly exploited are Windows, Acrobat Reader, Adobe Flash and Java. Once the exploit tool has successfully exploited the vulnerabilities on your computer it automatically installs and starts TeslaCrypt.



It is crucial to ensure that Windows and all other programs are up to current. It protects your computer from vulnerabilities that could cause infection by TeslaCrypt.



This ransomware was the very first to actively target data files utilized by PC video games. It targets game files for games such as MineCraft, Steam, World of Tanks, League of Legends and Half-life 2. Diablo, Fallout 3, Skyrim, Dragon Age, Call of Duty, RPG Maker and many more. However, it has not been determined if the game's targets result in more revenues for the creators of this malware.



Versions of TeslaCrypt and file extensions



TeslaCrypt is frequently updated to include new file extensions and encryption methods. The first version encrypts files that have the extension .ecc. The encrypted files, in this instance, are not paired with the data files. TeslaDecoder can also be used to recover the encryption key that was originally used. It is possible if the key used to decrypt was zeroed out and partial key was discovered in key.dat. The decryption key could be located in the Tesla request sent to the server.



There is another version with encrypted extension of files like .ecc and .ezz. One cannot recover the original encryption key without the private key of the authors of the ransomware when the decryption has been eliminated. The encrypted files cannot be paired with the data files. The encryption key is derived from the Tesla request that is sent to the server.



For the version with extension file names .ezz and .exx, the original decryption key cannot be recovered without the author's private key in the event that the decryption key was zeroed out. this that or the other The encrypted files that have the extension .exx are paired with data files. The encryption key can also be obtained from the Tesla request to the server.



Versions with encrypted file extensions.ccc or.abc don't use data files. The key to decrypt cannot be stored on your computer. It can only be decrypted when that the victim captures the key as it was being transmitted to the server. You can get the decryption key by contacting Tesla. This is not possible for TeslaCrypt versions prior to v2.1.0.



The release of TeslaCrypt 4.0



Recently, the authors released TeslaCrypt 4.0 sometime in March 2016. The latest version addresses an issue that caused damaged files that were larger than 4GB. It also includes new ransom notes and does not use an extension for encrypted files. The absence of an extension makes it hard for users to learn the details of TeslaCryot and what happened to their files. With the new version, users will have to follow the path outlined in the ransom notes. There are no established methods to decrypt files that have no extension without a decryption key or Tesla's private key. If the victim takes the key as it was being sent to an online server the files could be decrypted.


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