Recognition and decryption solve different problems. A recognition tool can help classify ransomware evidence, while a decryptor needs the correct family support and usable cryptographic material.
Recognition answers “what is it?”
A ransomware recognition workflow uses observable indicators to classify the attack. That can reduce the risk of running a decryptor for the wrong family.
Decryption answers “can these files be recovered?”
Even with a correct family name, the answer depends on the encryption key and the capabilities of the available decryptor.
Why this distinction matters for STOP/Djvu
STOP/Djvu infections can share recognizable extensions while still producing different recovery outcomes depending on offline or online keys.
Avoid tool-name confusion
Search results can combine old tool names, recognition utilities and unrelated archives. Verify the publisher and exact product before running any executable.
For a source-integrity workflow, use the safe download checklist.