After data encryption, the ransomware appends a file tail containing the RSA-2048 encrypted file key.Įncrypted file names are given extra done, a file named read_me. The ransomware uses two different encryption methods RC4 and AES 192. The variants can be distinguished by encrypted file extension. Avast Decryption Tool for AtomSilo and LockFile will work for both strains due to their similarities, even with different deployment tactics being used for each. All the Avast Decryption Tools are available in one zip here. Avast Decryption Tool for AtomSilo and LockFile is released to decrypt files held by the AtomSilo and Lockfile ransomware strain. Each block is encrypted by AES GCM symmetric cipher. Avast Decryption Tool for BTCWare can unlock BTCWare, a ransomware strain that first appeared in March 2017 and has spawned five known five variants. Any data past 9437184 bytes (0x900000) is left in plain text. Files are encrypted by blocks each block has 1048576 (0x100000) bytes. Download Avast Decryption Tool for Globe Ransomware 1.0.0. The ransomware creates a 32-byte encryption key for every file designated for encryption. NET (C) and encrypts files via Chacha20 or AES-256. The HermeticRansom ransomware avoids encrypting files in Program Files and Windows folders to keep the victim’s PC operational. Avast Decryption Tool for Prometheus decrypts files held by the Prometheus ransomware strain. Avast Decryption Tool for HermeticRansom decrypts the ransomware strain accompanying the data wiper HermeticWiper that has recently been circulating in Ukraine.
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