Windows systems have hidden network shares that are accessible only to administrators and provide the ability for remote file copy and other administrative functions. Example network shares include <code>C$</code>, <code>ADMIN$</code>, and <code>IPC$</code>. Adversaries may use this technique in conjunction with administrator-level Valid Accounts to remotely access a networked system over server message block (SMB) 1 to interact with systems using remote procedure calls (RPCs), 2 transfer files, and run transferred binaries through remote Execution. Example execution techniques that rely on authenticated sessions over SMB/RPC are Scheduled Task/Job, Service Execution, and Windows Management Instrumentation. Adversaries can also use NTLM hashes to access administrator shares on systems with Pass the Hash and certain configuration and patch levels. 3 The Net utility can be used to connect to Windows admin shares on remote systems using <code>net use</code> commands with valid credentials. 4
- Wikipedia SMB
- TechNet RPC
- Microsoft Admin Shares
- Technet Net Use
Groups using this technique
No group use in the reference set yet.
Claims
No public claim points at this technique yet.
Auto-ingested and not human-reviewed; confidence and validity read by citation.