The danger is not a single new malware family. It is a commercial layer that helps many kinds of malware reach victims with less scrutiny.
Criminals can package remote access tools, stealers, or ransomware loaders into files designed to look different each time they are delivered.
A crypter starts with a customer-supplied malicious program and encrypts or disguises it.
More capable offerings go further, adding memory-only execution, checks for virtual machines and sandboxes, process injection, persistence, and fresh versions after a file is detected.
Crypter services help criminals disguise malware and bypass Windows Defender, EDR, and SmartScreen, making attacks harder to detect.
cybersecuritynews.com