Metasploit shellcode obfuscation to bypass antivirus

1) An interesting article has been presented by foip on how to encode shellcode so as to avoid antivirus detection. You can read that article at the following link

http://funoverip.net/2011/09/simple-shellcode-obfuscation/


2) Another interesting tips has been given by Mark Bagget which is available at the following address

http://pen-testing.sans.org/blog/2011/10/13/tips-for-evading-anti-virus-during-pen-testing


3) Loading meterpreter in a dll

http://hype-free.blogspot.com/2009/01/loading-meterpreter-in-dll.html