Wide-Spread Local Admin Testing

The report demonstrates a practical post-compromise technique for detecting wide-spread reuse of the local Windows Administrator password: enumerating hosts (net view) and attempting C$ access with a known Administrator credential to identify machines where that credential is valid. The author describes discovering a shared Administrator password documented on an internal SharePoint and using a modified password-spraying/net use loop to find nearly 200 machines where the credential worked, facilitating rapid lateral movement toward Domain Administrator access.