<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">This is because a "depth" is being used with the fast_pattern:only statement. &nbsp;You can't do that. &nbsp;<div><br></div><div><br></div><div><br><div><div>On Oct 23, 2011, at 11:21 AM, Gibson, Nathan J. (HSC) wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; "><div>Been running ET for awhile know. Had this error today. Any thoughts?</div><div><br></div><div><br></div><div><br></div><div><span class="Apple-style-span" style="font-family: Consolas; font-size: medium; ">10/23/2011 2:01 AM :&nbsp;&nbsp; snort[29071]: FATAL ERROR: /etc/snort/rules/snort.rules(3219) Fast pattern only contents cannot be relative or have non-zero offset/depth content modifiers.</span></div><div><br></div><div><br></div><div><br></div><div><br></div><div><div>alert tcp $HOME_NET any -&gt; $EXTERNAL_NET any (msg:"ET TROJAN IRC Potential bot command response"; flow:established,to_server; content:"PRIVMSG "; fast_pattern:only; depth:8; content:"|3a|"; within:30; pcre:"/((T?FTP)\x3a File transfer|(random|sequential) Port Scan|Random (Spreading|Scanner)|Exploiting IP|Exploiting\.\.|flooding\x3a|flood stopped|sending packets)|Random Method started|FINDFILE|Scan stopped|No scan thread found|thread\(s\) stopped|\x3aExec /i"; reference:url,<a href="http://doc.emergingthreats.net/2002033">doc.emergingthreats.net/2002033</a>; classtype:trojan-activity; sid:2002033; rev:16;)</div><div>alert tcp $HOME_NET $HTTP_PORTS -&gt; $EXTERNAL_NET any (msg:"ET ATTACK_RESPONSE Possible /etc/passwd via HTTP (linux style)"; flow:established,from_server; content:"root|3a|x|3a|0|3a|0|3a|root|3a|/root|3a|/"; nocase; reference:url,<a href="http://doc.emergingthreats.net/bin/view/Main/2002034">doc.emergingthreats.net/bin/view/Main/2002034</a>; classtype:misc-activity; sid:2002034; rev:8;)</div></div><div><br></div></div>
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