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cve-2022 | Level: Easy  | Total Lab Runs: 0 | Premium Lab

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In May 2017, a worldwide ransomware attack infamously known as WannaCry was set in motion. It targeted Microsoft Windows operating system by encrypting the data on the victim's machine and seeking ransom in exchange for a promise to decrypt all the encrypted files and potentially undo the damage, but that's far from the truth, as we discuss further! This ransomware used the EternalBlue, an exploit of Microsoft's implementation of their SMB protocol, released by The Shadow Brokers hacker group in April 2017, to gain access to remote Windows machines in most cases. However, it also used the DoublePulsar backdoor to spread itself from the infected machines.

In this lab, we will learn how an attacker can use HTML smuggling to deliver the WannaCry executable to the target user. And how running this executable will encrypt the data/files on the target user's machine, holding him on ransom to get that data back.

A Kali GUI machine and a target machine server 2019 are provided to you. The IP address of the target machine is provided in a text file named target placed on the Desktop of the Kali machine (/root/Desktop/target). 

Your task is to create a web page and javascript that allows a malicious executable (wannacry.exe) to download on the target machine when a user visits an attacker's web server. 

Objective: Infect the target machine using file smuggling with HTML and JavaScript techniques. 


  • Your Kali machine has an interface with IP address 10.10.X.Y. Run “ip addr” to know the values of X and Y.
  • The IP address of the target machine is mentioned in the file “/root/Desktop/target”
  • Do not attack the gateway located at IP address 192.V.W.1 and 10.10.X.1

The following activities are strictly prohibited on this website unless otherwise explicitly stated as allowed in the mission statement:

  • Using automated scanners
  • Using brute force attacks
  • Denial of Service attacks
  • Attacking other student machines in challenges where you might achieve a shell on the vulnerable system
  • Attacking the lab infrastructure

Users violating the above will be either temporarily or permanently banned from the website. 

If you are unsure about an activity, then please contact support to confirm that it is allowed on our website.

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