How to modify the signature reference in sid-msg.map

["Jinqiao Yu" <jinqiaoyu () hotmail com>]

Hi,
For whatever reason, I want to modify some signature references. For 
instance, in sid-msg.map
for signature 1923.  The original message is as follows:
1923 || RPC portmap UDP proxy attempt

Then I changed it to:

1923 || RPC portmap UDP proxy attempt || cve, CAN-2003-0028 || bugtraq, 7123

In the rpc.rules file, the original corresponding line is as follows:

alert udp $EXTERNAL_NET any -> $HOME_NET 111 (msg:"RPC portmap UDP proxy 
attempt"; content:"|00 01 86 A0|"; content:"|00 00 00 05|"; distance:4; 
within:4; classtype:rpc-portmap-decode; sid:1923; rev:2;)

Then I changed it to:

alert udp $EXTERNAL_NET any -> $HOME_NET 111 (msg:"RPC portmap UDP proxy 
attempt"; content:"|00 01 86 A0|"; content:"|00 00 00 05|"; distance:4; 
within:4;  reference:cve,CAN-2003-0028; reference:bugtraq,7123; 
classtype:rpc-portmap-decode; sid:1923; rev:2;)

I did this because I want snort to give the two references wherever the 
signature is matched. The references will be shown at ACID also. But after I 
made the above changes and restart snort, I still
got the same alert without any reference information.( CAN-2003-0028, 
bugtraq 7123).
Do I need to modify any additional information? I was trying this for quite 
a long time and could make it. Please help me?


Thanks in advance.
Victor

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