Re: Snort sfpreprocessor question

[Leo Nespoli <leo4b () hotmail it>]

Hi Dr. Lewis,


I've attached the pcap file you requested me.

I did a nmap scan, so that a portscan rule is fired.

I've sfportscan preprocessor enabled, together with some preprocessor rules.

This is the log that is coming out:

 [122:1:1] (portscan) TCP Portscan [Classification: Attempted Information Leak] [Priority: 2] {PROTO:255} 192.168.1.110 
-> 192.168.1.107


Thanks for your time and your availability,

MaLeo.


________________________________
Da: Al Lewis (allewi) <allewi () cisco com>
Inviato: martedì 31 maggio 2016 07.22
A: Leo Nespoli; snort-users () lists sourceforge net
Oggetto: RE: Snort sfpreprocessor question


Can you provide a conf and pcap of the traffic that is generating PROTO:255 alerts please?



Thanks



Albert Lewis

QA SNORT/Sourcefire

SOURCEfire, Inc. now part of Cisco

9780 Patuxent Woods Drive
Columbia, MD 21046

Phone: (office) 443.430.7112

Email: allewi () cisco com



From: Leo Nespoli [mailto:leo4b () hotmail it]
Sent: Monday, May 30, 2016 2:06 PM
To: snort-users () lists sourceforge net
Subject: [Snort-users] Snort sfpreprocessor question



Hello,



Is it possible to change the protocol field generated by sfpreprocessor?

I have some logs with {PROTO:255}, and I'd like to change this field.



Thanks,

MaLeo.

Attachment: proto_255.pcap
Description: proto_255.pcap

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