[help,urgent] Using PCRE to match packets in hex

[Yoyo Lam <mtcyoyo () gmail com>]

Hello experts,

I have a problem about PCRE. I wrote a PCRE pattern that perfectly matches
a certain message, and I checked in some regex checker and there is no
problem. But when I put it in a Snort rule with the B modifier, it doesn't
work. Please help me to figure what happened.

The PCRE Check page:
http://www.phpliveregex.com/p/1In

My Snort rule:
alert tcp any any -> any any
(pcre:"/([0-9a-fA-F]{2})13([0-9a-fA-F]{2}){8}(77696e646f7773|6c696e7578)/B";
msg:"Some message"; sid:1234567; rev:1;)

Please help me by either
1) Telling me what I have forgotten to add/change/remove;
2) Give me the working rule :D
3) Any way that can solve this fast

This is quite urgent, so please help me asap.

Best regards,
Yoyo

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