[BlackByte Ransomware](https://attack.mitre.org/software/S1180) is uniquely associated with [BlackByte](https://attack.mitre.org/groups/G1043) operations. [BlackByte Ransomware](https://attack.mitre.org/software/S1180) used a common key for infections, allowing for the creation of a universal decryptor.(Citation: Trustwave BlackByte 2021)(Citation: FBI BlackByte 2022) [BlackByte Ransomware](https://attack.mitre.org/software/S1180) was replaced in [BlackByte](https://attack.mitre.org/groups/G1043) operations by [BlackByte 2.0 Ransomware](https://attack.mitre.org/software/S1181) by 2023.(Citation: Microsoft BlackByte 2023)(Citation: Cisco BlackByte 2024)