Hello!How can I got a guide on how to write nasl script?

[zhzhy]

I only find this which is writed in 2005,is there any recent guide?

The NASL2 reference manual

Thanks for your help!

[rippledj]

I can share here all the resources I have found on learning NASL. However, I found the best method for quickly learning NASL is to use ChatGPT. You can submit the NASL file and ChatGPT will explain it to you. If you get really smart with ChatGPT you can upload a .zip file with NASL files and get an output list of all functions used and descriptors for them. I have a work in progress somewhere that is attempting to build a sort of “manual” for NASL using this method/

• O’Reilly (need account) - 1. The Inner Workings of NASL (Nessus Attack Scripting Language) - Nessus, Snort, and Ethereal Power Tools [Book]
• ScienceDirect (need account for parts) - https://www.sciencedirect.com/topics/computer-science/nessus-attack-scripting-language
• Vijay Mukhi - NASL – Nessus Attack Scripting Language
• lItux - Section 1.12.  Important NASL Functions
• SysTutorials - https://www.systutorials.com/docs/linux/man/1-nasl/

[zhzhy]

thanks for your reply and help,I think would be very useful

[cfi]

There is also a sticky posting here:

VT Development

VT Development for OpenVAS Scanner This page collects hints and guides for developing vulnerability tests for the OpenVAS Scanner. It essentially means to write scripts in NASL language. Questions If you have any questions to VT Development please start a new thread for each question and link back to this topic if the question is related to this thread. How to start The best start is to learn from existing NASL scripts. The content of the Greenbone Community Feed contains the scripts in so…

and the scanner side NASL documentation here:

Otherwise looking at existing .nasl files and e.g. the function description within .inc files is another possibility.

[rippledj]

Thanks for that link - I didn’t know that resource existed!