alert tcp $HOME_NET 5060 -> $EXTERNAL_NET any (msg:"ET VOIP Multiple Unauthorized SIP Responses TCP"; flow:established,from_server; content:"SIP/2.0 401 Unauthorized"; depth:24; threshold: type both, track by_src, count 5, seconds 360; classtype:attempted-dos; reference:url,doc.emergingthreats.net/2003194; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VOIP/VOIP_Unauth; sid:2003194; rev:6;)

Added 2009-07-29 15:45:36 UTC

alert tcp $HOME_NET 5060 -> $EXTERNAL_NET any (msg:"ET VOIP Multiple Unauthorized SIP Responses TCP"; flow:established,from_server; content:"SIP/2.0 401 Unauthorized"; depth:24; threshold: type both, track by_src, count 5, seconds 360; classtype:attempted-dos; reference:url,doc.emergingthreats.net/2003194; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VOIP/VOIP_Unauth; sid:2003194; rev:6;)

Added 2009-07-29 15:45:36 UTC

alert ip $HOME_NET 5060 -> $EXTERNAL_NET any (msg:"ET VOIP Multiple Unauthorized SIP Responses"; content:"SIP/2.0 401 Unauthorized"; depth:24; threshold: type both, track by_src, count 5, seconds 360; classtype:attempted-dos; reference:url,doc.emergingthreats.net/2003194; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VOIP/VOIP_Unauth; sid:2003194; rev:5;)

Added 2009-02-16 21:30:26 UTC

alert ip $HOME_NET 5060 -> $EXTERNAL_NET any (msg:"ET VOIP Multiple Unauthorized SIP Responses"; content:"SIP/2.0 401 Unauthorized"; depth:24; threshold: type both, track by_src, count 5, seconds 360; classtype:attempted-dos; reference:url,doc.emergingthreats.net/2003194; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VOIP/VOIP_Unauth; sid:2003194; rev:5;)

Added 2009-02-16 21:30:26 UTC

alert ip $HOME_NET 5060 -> $EXTERNAL_NET any (msg:"ET VOIP Multiple Unauthorized SIP Responses"; content:"SIP/2.0 401 Unauthorized"; depth:24; threshold: type both, track by_src, count 5, seconds 360; classtype:attempted-dos; sid:2003194; rev:4;)

Added 2008-05-18 19:52:14 UTC

alert ip $HOME_NET 5060 -> $EXTERNAL_NET any (msg:"ET VOIP Multiple Unauthorized SIP Responses"; content:"SIP/2.0 401 Unauthorized"; depth:24; threshold: type both, track by_src, count 5, seconds 360; classtype:attempted-dos; sid:2003194; rev:4;)

Added 2008-05-18 19:52:13 UTC

alert ip $HOME_NET 5060 -> any any (msg:"ET VOIP Multiple Unauthorized SIP Responses"; content:"SIP/2.0 401 Unauthorized"; depth:24; threshold: type both, track by_src, count 5, seconds 360; classtype:attempted-dos; sid:2003194; rev:3;)

Added 2008-01-29 11:02:27 UTC

alert ip $HOME_NET 5060 -> any any (msg:"ET VOIP Multiple Unauthorized SIP Responses"; content:"SIP/2.0 401 Unauthorized"; depth:24; threshold: type both, track by_src, count 5, seconds 360; classtype:attempted-dos; sid:2003194; rev:3;)

Added 2008-01-29 11:02:27 UTC

alert ip $HOME_NET 5060 -> any any (msg:"BLEEDING-EDGE VOIP Multiple Unauthorized SIP Responses"; content:"SIP/2.0 401 Unauthorized"; depth:24; threshold: type both, track by_src, count 5, seconds 360; classtype:attempted-dos; sid:2003194; rev:2;)

Added 2007-06-03 23:30:26 UTC

alert ip $HOME_NET 5060 -> any any (msg:"BLEEDING-EDGE VOIP Multiple Unathorized SIP Responses"; content:"SIP/2.0 401 Unauthorized"; depth:24; threshold: type both, track by_src, count 5, seconds 360; classtype:attempted-dos; sid:2003194; rev:1;)