QuirkyLoader: The Malware Delivery Engine You Need to Watch

A new malware loader called QuirkyLoader is making the rounds, pushing well-known threats like Agent Tesla, AsyncRAT, and Snake Keylogger. Unlike older loaders, it relies on stealthy DLL injection techniques, letting it slip under endpoint defenses.

Researchers note QuirkyLoader’s modular design, it can adapt to new malware families quickly. Once inside, it establishes persistence and opens the door for credential theft and surveillance.

For defenders, this highlights the importance of layered detection, strong endpoint monitoring, and careful scrutiny of email attachments and downloads.

Cybersecurity researchers have disclosed details of a new malware loader called QuirkyLoader that's being used to deliver via email spam campaigns an array of next-stage payloads ranging from information stealers to remote access trojans since November 2024