Detect Nimplant Pe

Daniel Jeremiah@daniyyell

•updated Jun 14, 2026•0•0•4

This YARA rule detects Portable Executable (PE) files associated with the Nimplant C2 framework. It identifies Nimplant by looking for specific DLL names (some with common typos), Nim-related source file names (e.g., pixle.nim, urls.nim), Windows API function calls commonly used by malware (e.g., GetComputerNameW, CreateProcess, VirtualProtect), Zlib patterns, TLS callbacks, and specific strings like registry keys and a version string "@NimPlant v1.4". The rule requires the file to be a valid PE file (MZ header).