Giving a try to MAX's psnuffle. Working fine, ruby spanking one core (100% cpu load).

Code:
       =[ msf v3.3-dev
+ -- --=[ 397 exploits - 246 payloads
+ -- --=[ 21 encoders - 8 nops
       =[ 181 aux

msf > db_destroy
msf > db_create[*] Creating a new database instance...[*] Successfully connected to the database[*] File: /root/.msf3/sqlite3.db
msf > use sniffer/psnuffle
msf auxiliary(psnuffle) > set interface mon0
interface => mon0
msf auxiliary(psnuffle) > run[*] Auxiliary module running as background job
msf auxiliary(psnuffle) >[*] Loaded protocol FTP from /pentest/exploits/framework3/data/exploits/psnuffle/ftp.rb...[*] Loaded protocol IMAP from /pentest/exploits/framework3/data/exploits/psnuffle/imap.rb...[*] Loaded protocol POP3 from /pentest/exploits/framework3/data/exploits/psnuffle/pop3.rb...[*] Loaded protocol URL from /pentest/exploits/framework3/data/exploits/psnuffle/url.rb...[*] Sniffing traffic.....
However msfconsole seems to lock here, no further commands accepted. Tried Ctrl+Z but session quits instead of going to background. Using an Alfa in monitor mode with rtl8187.

Am I slow today?