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; reference:url,doc.emergingthreats.net/2003194; classtype:attempted-dos; sid:2003194; rev:6; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2018-09-13 19:38:36 UTC

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Added 2018-09-13 17:53:09 UTC

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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; reference:url,doc.emergingthreats.net/2003194; classtype:attempted-dos; sid:2003194; rev:6; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2017-08-07 20:56:31 UTC

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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; reference:url,doc.emergingthreats.net/2003194; classtype:attempted-dos; sid:2003194; rev:6;)

Added 2011-10-12 19:13:01 UTC

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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; sid:2003194; rev:6;)

Added 2011-09-14 22:25:58 UTC

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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 2011-02-04 17:22:18 UTC

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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;)

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