Re: snort rule assistance/need help have to complete in short notice by next week

[Eric Mowatt via Snort-sigs <snort-sigs () lists snort org>]

Aloha Joel
Do you have an example we can follow to the homework question? Seriously would like to see it. Not necessarily to small 
dns requests but maybe something like the .top Donain resolutions. 

Thank you
Mahalos
Eric


Made on Kauai 

> On May 29, 2021, at 8:18 AM, Joel Esler (jesler) via Snort-sigs <snort-sigs () lists snort org> wrote:
>
> https://snort.org/faq/can-i-have-help-with-my-homework
>
>
>
> — 
> Sent from my  iPad
>
> > > On May 29, 2021, at 10:02, Real Gamerholic via Snort-sigs <snort-sigs () lists snort org> wrote:
> > 
> > <image.png>
> >   
> > 1. I want to catch internal DNS requests (requests smaller than 512 bytes) originating from any internal IP address. 
> > What will I put in the blanks to complete the Snort rule? Have to be as specific as possible (use "any" sparingly, 
> > if at all).  
> > alert <blank 1> 192.168.8.1/<blank 2> <blank 3> -> <blank 4> <blank 5> (msg:"DNS request detected!"; sid:1;)
> > 2. John doe remotely compromised the Active Directory server on the network. He/she is attempting to port scan the 
> > DNS server with nmap’s -sT option to discover an SSH service. What Snort rule will detect John Doe malicious 
> > activity (this instance). Have to be as specific as possible (use "any" sparingly, if at all).
> >
> > alert <blank 1> <blank 2> <blank 3> -> <blank 4> <blank 5> (msg:”SSH activity detected!"; sid:2;)
> >
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> Visit the Snort.org to subscribe to the official Snort ruleset, make sure to stay up to date to catch the most <a 
> href=" https://snort.org/downloads/#rule-downloads";>emerging threats</a>!
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href=" https://snort.org/downloads/#rule-downloads";>emerging threats</a>!