Extract text from encrypted files (BC5B)
To convert BC5B files to another format, you need Emsisoft Decryptor or other Encoded software.
To convert other file formats to the "Encrypted Ransomware File" file type, you need software like Emsisoft Decryptor or a similar tool.
A .bc5b file is a user document, image, or media file that has been maliciously encrypted by a ransomware infection, often a variant of the STOP/Djvu ransomware family. The ransomware targets common data formats and scrambles their contents using strong cryptographic algorithms like AES-256 and RSA, appending the .bc5b extension to the original filename. Users typically encounter these files alongside a ransom note text file demanding payment for a decryption key. Cybersecurity companies like Emsisoft and organizations like No More Ransom occasionally release decryption tools, but recovery is not guaranteed without an offline key.
The primary disadvantage of the .bc5b format is that the file is entirely unusable. You cannot view the images, read the documents, or play the videos. The encryption creates a strict barrier, making the file inaccessible to the operating system and any standard application. The ideal target formats are the original extensions of the files before the infection occurred, such as JPG, DOCX, or MP4.
This file format is exceptionally difficult to open or convert because the data is cryptographically locked. Online converters fail to process it because they lack the specific private keys required to decrypt the payload. Often, only a dedicated decryption tool can properly read or export the data. If our analysis detects unencrypted headers or a supported underlying embedded format, viewing partial data may still be possible.
Convert.Guru analyzes your BC5B file, detects the exact format, and lets you read the text inside.
If you want to convert BC5B file to , you can use Emsisoft Decryptor or similar software from the "Ransomware Encrypted Data" category. In the File menu, look for Save As… or Export….
To convert files to BC5B, try Emsisoft Decryptor or another comparable tool in the "Ransomware Encrypted Data" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our BC5B converter.