rapid7/metasploit-framework — pull request #253 by corelanc0d3r (2012-03-21 13:40:51+00:00)
Title: rewrote DNS TXT query out-of-band payload delivery shellcode

tested it on

WinXP SP2
WinXP SP3
Win7 SP1 64bit (wow64)
Windows 2003 Server R2 SP2

Please check usage comments inside the module for more info