Public key is hardcoded in the ransomware binary and differs per sample. The symmetric key is encrypted by the RSA-4096 cipher and appended to the end of the encrypted file. Akira Encryption Schemaĭuring the run, the ransomware generates a symmetric encryption key using CryptGenRandom(), which is the random number generator implemented by Windows CryptoAPI. The Linux version is 64-bit and uses the Boost library. In June 2023, a security researcher rivitna published a sample that is compiled for Linux. The binary is linked by Microsoft Linker version 14.35. Additionally, Boost library was used to implement the asynchronous encryption code. It is written in C++ with heavy support from C++ libraries. The Akira ransomware comes as a 64-bit Windows binary written for Windows operating system. Note that this ransomware is not related to the Akira ransomware discovered by Karsten Hahn in 2017 and our decryptor cannot be used to decrypt files from this old variant. Skip to how to use the Akira Ransomware Decryptor The Akira ransomware appeared in March 2023 and since then, the gang claims successful attacks on various organizations in the education, finance and real estate industries, amongst others. You can also try the pre-configured salts that have been used by known Stampado campaigns in the wild so far.Researchers for Avast have developed a decryptor for the Akira ransomware and released it for public download. Instead submit the malware file via email to so I can extract the correct salt for you. If the malware has already been removed, please don't attempt to reinfect yourself. Fill in the ID and email address and click the "Detect. In order to determine the salt automatically the ransomware has to be running on the system. The salt can either be specified manually or detected automatically. Since version 1.17.0 each Stampado infection also has a unique "salt" that is specific to the ransomware buyer. Please put both information into the appropriate fields in the options tab. Please keep in mind that both are case sensitive, so proper capitalization does matter. In order for the decrypter to work you will require both the email you are asked to contact as well as your ID. Known variants of this ransomware ask victims to contact, ,, or to facilitate payment. Written in AutoIt, it encrypts files using AES-256 encryption and renames them to *.locked. Stampado is a ransomware kit offered within various hacking communities.
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