APT / THREAT GROUP
Leslieloader
2
aliases
Last seen:Mar 17, 2026
Intelligence Profile
Leslieloader is a loader written in Golang, named after the observed AES decryption key referencing deceased actor, Leslie Cheung. The loader assists in the initial infection and deployment of the malicious payload, enabling execution on a system. The loader achieves its goal by decoding and decrypting a secondary payload binary, then injecting it into another process.
Threat Analysis
Leslieloader is a known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of unknown activity patterns.
External References
Quick Facts
TypeAPT / Threat Group
Aliases2
Also Known As
win.leslieloaderLeslieloader
External Intelligence
Malpedia: win.leslieloaderResearch Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.