#alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET DELETED SMTP NATO Secret"; flow:to_server,established; content:"Subject|3A|"; pcre:"///((NATO\sSECRET)|NS)//MR/ism"; reference:url,doc.emergingthreats.net/bin/view/Main/2002419; classtype:policy-violation; sid:2002419; rev:4; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2018-09-13 19:37:55 UTC

Added 2018-09-13 17:52:47 UTC

#alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET DELETED SMTP NATO Secret"; flow:to_server,established; content:"Subject|3A|"; pcre:"///((NATO\sSECRET)|NS)//MR/ism"; reference:url,doc.emergingthreats.net/bin/view/Main/2002419; classtype:policy-violation; sid:2002419; rev:4; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2017-08-07 20:55:57 UTC

##alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET DELETED SMTP NATO Secret"; flow:to_server,established; content:"Subject|3A|"; pcre:"///((NATO\sSECRET)|NS)//MR/ism"; reference:url,doc.emergingthreats.net/bin/view/Main/2002419; classtype:policy-violation; sid:2002419; rev:4;)

Added 2012-04-23 23:03:58 UTC

#alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET POLICY SMTP NATO Secret"; flow:to_server,established; content:"Subject|3A|"; pcre:"///((NATO\sSECRET)|NS)//MR/ism"; reference:url,doc.emergingthreats.net/bin/view/Main/2002419; classtype:policy-violation; sid:2002419; rev:3;)

Added 2011-10-12 19:11:38 UTC

#alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET POLICY SMTP NATO Secret"; flow:to_server,established; content:"Subject|3A|"; pcre:"///((NATO\sSECRET)|NS)//MR/ism"; classtype:policy-violation; reference:url,doc.emergingthreats.net/bin/view/Main/2002419; sid:2002419; rev:3;)

Added 2011-09-14 21:47:23 UTC

#alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET POLICY SMTP NATO Secret"; flow:to_server,established; content:"Subject|3A|"; pcre:"///((NATO\sSECRET)|NS)//MR/ism"; classtype:policy-violation; reference:url,doc.emergingthreats.net/bin/view/Main/2002419; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/POLICY/POLICY_Classified_Information; sid:2002419; rev:3;)

Added 2011-02-04 17:21:50 UTC

#alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET POLICY SMTP NATO Secret"; flow:to_server,established; content:"Subject|3A|"; pcre:"///((NATO\sSECRET)|NS)//MR/ism"; classtype:policy-violation; reference:url,doc.emergingthreats.net/bin/view/Main/2002419; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/POLICY/POLICY_Classified_Information; sid:2002419; rev:3;)

Added 2009-02-10 20:53:05 UTC

#alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET POLICY SMTP NATO Secret"; flow:to_server,established; content:"Subject|3A|"; pcre:"///((NATO\sSECRET)|NS)//MR/ism"; classtype:policy-violation; reference:url,doc.emergingthreats.net/bin/view/Main/2002419; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/POLICY/POLICY_Classified_Information; sid:2002419; rev:3;)

Added 2009-02-10 20:53:05 UTC

#alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET POLICY SMTP NATO Secret"; flow:to_server,established; content:"Subject|3A|"; pcre:"///((NATO\sSECRET)|NS)//MR/ism"; classtype:policy-violation; sid:2002419; rev:2;)

Added 2008-01-31 18:48:08 UTC

#alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET POLICY SMTP NATO Secret"; flow:to_server,established; content:"Subject|3A|"; pcre:"///((NATO\sSECRET)|NS)//MR/ism"; classtype:policy-violation; sid:2002419; rev:2;)

Added 2008-01-31 18:48:08 UTC

#alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"BLEEDING-EDGE POLICY SMTP NATO Secret"; flow:to_server,established; content:"Subject|3A|"; pcre:"///((NATO\sSECRET)|NS)//MR/ism"; classtype:policy-violation; sid:2002419; rev:1;)