From: inode (inode@mediaservice.net)
Date: Thu Feb 14 2008 - 15:42:10 EST
What is RunAsUser?
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RunAsUser is able to run a command as another user. You need the local
administrator privileges and the user must have a running process on the
system.
How does it work?
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RunAsUser uses dll injection techniques to gain SYSTEM privileges. With
SYSTEM privileges the dll is able to open the target process, duplicate
the access token and run a program with the user privileges.
What I can do with RunAsUser?
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RunAsUser can be used in a lot of situations, the most interesting usage
is the privilege escalation that can be done on a Microsoft domain. If
the user has local administrator rights and a domain admin is logged on
the system you can get domain administrator privileges.
Command line arguments
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-p <pid>
Pid of the target process
-c <command>
Command to be executed with user privileges
-s <session ID> Target session ID
Session where the new process is spawned. To get your current session id
run taskmgr.exe, go to "View" -> "Select columns" and select "Session
ID" and search one of your current processes.
-l <lsass pid> (optional)
RunAsUser looks for the lsass.exe process. If this process fails, try
using this option specifying the lsass pid.
You can download source and binary at:
http://lab.mediaservice.net/code.php#runasuser
inode
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