Security researchers have published a new suite of tools designed to help victims of the prolific Black Basta ransomware recover their files.

Berlin-based Security Research (SR) Labs revealed in a recent GitHub post that the tools exploit a weakness in the encryption algorithm.

Black Basta uses a ChaCha keystream to XOR encrypt 64-byte-long chunks of victim files.

“Our analysis suggests that files can be recovered if the plaintext of 64 encrypted bytes is known. Whether a file is fully