Data Interpretation

[Michael Lynch <mlynch1212 () msn com>]

Hello,
 
First of all let me start by saying that
I have 4 days of experience with nmap
 
Last week a friend suggested that I download
and try nmap, at his suggestion I tried nmap
and found it very interesting.
After installation I tried a scan on a Linux computer
that I have, to test it out.
I found a few results that caught my eye, but I
cannot correctly interpret the results.
Could someone help me with the interpretation?
 
 

Here is what is in question! 
 
Port  Protocol  State     Service 
 
12345 tcp       filtered  netbus
27374 tcp       filtered  subseven
31337 tcp       filtered  Elite 
 
 
Here is the command that I used:
nmap -PE -v -p1-65535 -PA21,23,80,3389 -A -T4 xxx.xxx.xxx.xxx  (XXX.= my IP address)
 
I initiated this scan using the Zenmap GUI
 
I know that all the services listed here are backdoor style breaches, 
but does this mean that the machine has been infected by these or 
that there has been an attempted attack with these? 
Could someone please help me with this?
 
 
Thanks in advance,
Michael 
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