Preface: NNTP port probeLogo -Internet Security Systems

NNTP port probe

advICE :Intrusions : 2003010
 FAQ
Oh my gosh, I'm being HACKED!!!
How do I report the hacker to my ISP?
I'm seeing lots of attacks, is this normal?
Summary

Someone is scanning the system to see if it supports the NNTP service.

Details

NNTP (Network News Transport Protocol) is the protocol used to transfer USENET messages around the Internet.

Hackers regularly scan the Internet looking for machines that might support this service. Primarily, they are looking for machines they can use to anonymously read messages from or post messages to. There are web sites that list "open" NNTP servers that can be used anonymously.

 more information
TCP port probe  
This section describes more about the symptom of somebody probing ports on your system.  
Underground Anonymous NNTP  
Someone scanning for the NTTP port probe might be looking for a system they can read from or post to anonymously.  
NNTP Service  
More about the NNTP service.  

 parametric information
portThis indicates the TCP port that was probed.
reason The reason for the port probe.
Firewalled:the incoming TCP SYN or UDP frame was stopped by the firewall.
RSTsent:the incoming TCP SYN frame was rejected by the computer.
ICMPsent:the incoming UDP frame was rejected by the computer.
NOanswer:there was no response to the incoming SYN frame.

 
Version appeared: 2.5 

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