[Emerging-Sigs] Bad Rule

Gibson, Nathan J. (HSC) Nathan-Gibson at ouhsc.edu
Tue Oct 25 16:32:27 EDT 2011


Can you take a look and correct as needed.




10/25/2011 3:29 PM :   snort[32474]: FATAL ERROR: /etc/snort/rules/snort.rules(3409) Fast pattern only contents cannot be relative or have non-zero offset/depth content modifiers.



alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN IRC pBot PHP Bot Commands"; flow:established,from_server; content:"PRIVMSG|20|"; depth:8; fast_pattern:only; pcre:"/PRIVMSG\s+\S+\s+\x3a\s*(\.user |\.logout|\.die|\.restart|\.mail |\.dns |\.download |\.exec |\.find |\.cmd |\.php |\.tcpflood |\.udpflood |\.raw |\.rndnick|\.pscan |\.ud\.server )/i"; reference:url,doc.emergingthreats.net/2003208; classtype:trojan-activity; sid:2003208; rev:12;)



GIBBY
_____________________________
Nathan J. Gibson, MsIA, CISSP, CISM,CCNA, MCSA
IT Architect
Infrastructure Services
The University of Oklahoma HSC
voice: 405.271.2644 x50340
fax:    405.271.2181
Feedback?  Email comments to Chris Hodges<mailto:chris-hodges at ouhsc.edu?subject=Heads%20up%20about%20Gibby>
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