discovered 27 Aug 2026
sleepwalker
→ View on GitHubSLEEPWALKER is a passive backdoor tool designed for offensive security tasks, featuring a 64-bit Windows DLL that impersonates `dpapi.dll` and loads into ESET's Management Agent. It utilizes a proprietary command language interpreted through a 23-opcode bytecode system, allowing for various operations including data transmission and remote execution of shellcode upon receiving a specific trigger packet. Notably, the tool includes a Python controller for compiling and encrypting commands, alongside a configurable architecture enabling advanced covert command execution and behavior customization.