February 12, 2024 at 08:39AM
Cybersecurity researchers at Kookmin University and Korea Internet and Security Agency have discovered an “implementation vulnerability” in Rhysida ransomware, enabling the first successful decryption of its data. The findings led to the development of a recovery tool distributed by KISA, achieving data decryption by exploiting implementation vulnerabilities in ransomware. The ransomware targets various sectors and utilizes advanced encryption techniques.
After reviewing the meeting notes, the key takeaways are as follows:
– Cybersecurity researchers discovered an “implementation vulnerability” allowing them to decrypt data locked by the Rhysida ransomware.
– The researchers from Kookmin University and KISA successfully decrypted the ransomware and are distributing a recovery tool through KISA.
– Rhysida ransomware employs the double extortion tactic and targets various sectors like education, manufacturing, information technology, and government.
– The ransomware uses LibTomCrypt for encryption and applies intermittent encryption to evade detection.
– The ransomware uses a cryptographically secure pseudo-random number generator for key generation, which was key to the researchers’ ability to recover the data without paying a ransom.
These are the main points from the meeting notes. If you need further details or specific information, please let me know.