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The Evolution and History of TeslaCrypt Ransomware Virus

TeslaCrypt is a ransomware program that encrypts files. program intended for all Windows versions, including Windows Vista, Windows XP, Windows 7 and Windows 8. The program was launched in the first time around the end of February 2015. TeslaCrypt infects your computer and searches for encrypted data files.



Once all your data files have been infected, a program will be displayed. It will provide details on how to recover the files. There is a link within the instructions that connects you to the TOR Decryption Services website. This site will give you details about the current ransom amount, the number of files are encrypted, and how to pay so that your files are released. The average ransom is at $500. It is payable in Bitcoins. Each victim will have their own Bitcoin address.



Once TeslaCrypt is installed on your computer, it will create an executable with a random label within the %AppData% folder. The executable is launched and starts to look through your computer's drive letters for files that need to be encrypted. When it detects a supported data file, it encrypts it and attaches an extension that is new to the name of the file. The name is based on the version that is affecting your computer. Szv7 The program uses a variety of extensions of files to decrypt encrypted files with the release of new versions of TeslaCrypt. TeslaCrypt currently uses the following extensions for encrypted files:.cccc..abc..aaa..zzz..xyz. You could make use of TeslaDecoder to decrypt encrypted files for free. It is, of course, dependent on the version of TeslaCrypt that's infected your files.



You should note that TeslaCrypt will search all drive letters on your computer to find files to encrypt. It can scan network shares, DropBox mappings and removable drives. However, it only targets data files on network shares when you have the share assigned as drive letters on your computer. The ransomware won't encode files on network shares in the absence of a network share that is mapped as a drive letter. Once it is done scanning your computer, it will delete all Shadow Volume Copies. This is done to prevent you from restoring affected files. The application title displayed after the encryption of your PC shows the version of the ransomware.



How TeslaCrypt affects your computer



TeslaCrypt is a computer virus that can be infected when the user visits an untrusted website running an exploit kit and whose computer is running outdated software. Hackers hack websites to distribute the malware. They install a specific software program dubbed an exploit kit. This tool exploits vulnerabilities within the programs on your computer. Acrobat Reader and Java are only a few of the programs that are vulnerable. weaknesses. Once the exploit kit has successfully exploited the vulnerabilities on your computer it will automatically install and launch TeslaCrypt.



It is crucial to ensure that Windows and all other programs are up to date. It protects your system from security holes that could result in infection by TeslaCrypt.



This ransomware was the very first to actively attack data files that are used 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 game targets mean increased profits for the developers of this malware.



Versions of TeslaCrypt and associated extensions to files



TeslaCrypt is regularly updated to include new encryption techniques and file extensions. The first version encrypts files with the extension .ecc. The encrypted files, in this instance are not associated with the data files. The TeslaDecoder may be used to retrieve the original encryption key. It is possible if the key used to decrypt was zeroed out and partial key was found in key.dat. You can also find the Tesla request directly to the server with the keys for decryption.



Another version is available with encrypted file extensions.ecc or.ezz. One cannot recover the original encryption key without the private key of the authors of the ransomware when the decryption has been zeroed out. The encrypted files are not associated with the data file. The encryption key is derived from the Tesla request that is sent to the server.



The original encryption keys for the versions with extensions file names.ezz or.exx cannot be recovered without the authors private key. If the decryption secret key was zeroed out, it will not be possible to recover the original key. The encrypted files with the extension.exx are able to be linked with data files. Decryption keys can also be obtained from the Tesla request to the server.



Versions that have encrypted file extensions.ccc or.abc do not use data files. The decryption key cannot be stored on your computer. It is only decrypted if the victim has captured the key in the process of being transmitted to the server. You can retrieve the encryption key by calling Tesla. It is not possible to do this with versions after TeslaCrypt v2.1.0.



TeslaCrypt 4.0 is now available



The authors released TeslaCrypt4.0 sometime in March 2016. A quick review shows that the new version has fixed a flaw that corrupted files earlier than 4GB. It also comes with new ransom notes, and doesn't require encryption of encrypted files. It is difficult for users to learn about TeslaCryot or what occurred to their files as there is no extension. With the latest version, users will need to follow the paths outlined in the ransom notes. There are little established ways to decrypt files that have no extension, without a purchased decryption key or Tesla's private key. The files can be decrypted if a victim captured the key as it was being transmitted to the server during encryption.


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