Deobfuscation & Decode
Beautify
For example, if we were using Firefox, we can open the browser debugger with [ CTRL+SHIFT+Z ], and then click on our script secret.js. This will show the script in its original formatting, but we can click on the '{ }' button at the bottom, which will Pretty Print the script into its proper JavaScript formatting:
Furthermore, we can utilize many online tools or code editor plugins, like Prettier or Beautifier. Let us copy the secret.js script:
Code: javascript
We can see that both websites do a good job in formatting the code:
We can find many good online tools to deobfuscate JavaScript code and turn it into something we can understand. One good tool is UnPacker. Let's try copying our above-obfuscated code and run it in UnPacker by clicking the UnPack button.
Tip: Ensure you do not leave any empty lines before the script, as it may affect the deobfuscation process and give inaccurate results.
POST Request
To send a POST request, we should add the -X POST flag to our command, and it should send a POST request:
Tip: We add the "-s" flag to reduce cluttering the response with unnecessary data
However, POST request usually contains POST data. To send data, we can use the "-d "param1=sample"" flag and include our data for each parameter, as follows:
Now that we know how to use cURL to send basic POST requests, in the next section, we will utilize this to replicate what server.js is doing to understand its purpose better.
Base64 Encode
Base64 Decode
Hex Encode
Hex Decode
Rot13 Encode
Rot13 Decode
Last updated