Emsisoft firm has released a new free decryption tool the STOP (Djvu) ransomware, in the last months the research team helped victims of many other threats.
STOP (Djvu) ransomware has 160 variants that infected more hundreds of thousands of victims worldwide. Experts estimated a total number of 460,000 victims, that makes this threat the most active and widespread ransomware today.
According to data included in Emsisoft Ransomware Statistics report for Q2 and Q3 2019, Djvu ransomware accounts for more than half of all the ransomware submissions throughout the world.
For the first time, a decryptor used a side-channel attack on the ransomware’s keystream.