VERY IMPORTANT

The report describes an attack campaign leveraging the CVE-2024-4577 vulnerability to deliver the "TellYouThePass" ransomware. The attackers use the vulnerability to execute arbitrary PHP code and run a malicious HTML application that loads a .NET variant of the ransomware into memory. Upon execution, the ransomware contacts a command-and-control server, enumerates directories, terminates processes, encrypts files, and leaves a ransom note.