Bundled Python runtime execution alongside sideloaded loader DLL

Emiliano Mema@Nosalva

•updated Aug 25, 2026•1•0•22

Detects the execution of python.exe or pythonw.exe from locations other than standard installation directories (C:\Python, C:\Program Files\Python), accompanied by the presence of associated DLLs (msvcp150/160.dll or python3xx.dll). This behavior is often indicative of portable Python environments being used for malicious script execution.