#alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg:"ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM|3a|"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; reference:url,doc.emergingthreats.net/bin/view/Main/2001795; classtype:denial-of-service; sid:2001795; rev:9; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

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

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Added 2018-09-13 17:52:37 UTC

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#alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg:"ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM|3a|"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; reference:url,doc.emergingthreats.net/bin/view/Main/2001795; classtype:denial-of-service; sid:2001795; rev:9; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2017-08-07 20:55:41 UTC

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#alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg:"ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM|3a|"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; reference:url,doc.emergingthreats.net/bin/view/Main/2001795; classtype:denial-of-service; sid:2001795; rev:9;)

Added 2017-05-09 17:26:45 UTC

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alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg:"ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM|3a|"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; reference:url,doc.emergingthreats.net/bin/view/Main/2001795; classtype:denial-of-service; sid:2001795; rev:9;)

Added 2011-10-12 19:10:55 UTC

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alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg:"ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM|3a|"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; classtype: denial-of-service; reference:url,doc.emergingthreats.net/bin/view/Main/2001795; sid:2001795; rev:9;)

Added 2011-09-14 21:05:11 UTC

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alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg:"ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM|3a|"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; classtype: denial-of-service; reference:url,doc.emergingthreats.net/bin/view/Main/2001795; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/DOS/DOS_Mail-From; sid:2001795; rev:9;)

Added 2011-02-04 17:21:36 UTC

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alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg: "ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM|3a|"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; classtype: denial-of-service; reference:url,doc.emergingthreats.net/bin/view/Main/2001795; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/DOS/DOS_Mail-From; sid:2001795; rev:9;)

Added 2010-06-23 13:46:09 UTC

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alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg: "ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM|3a|"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; classtype: denial-of-service; reference:url,doc.emergingthreats.net/bin/view/Main/2001795; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/DOS/DOS_Mail-From; sid:2001795; rev:9;)

Added 2010-06-23 13:46:09 UTC

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alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg: "ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM|3a|"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; classtype: denial-of-service; reference:url,doc.emergingthreats.net/bin/view/Main/2001795; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/DOS/DOS_Mail-From; sid: 2001795; rev:9;)

Added 2009-02-06 19:00:55 UTC

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alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg: "ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM|3a|"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; classtype: denial-of-service; reference:url,doc.emergingthreats.net/bin/view/Main/2001795; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/DOS/DOS_Mail-From; sid: 2001795; rev:9;)

Added 2009-02-06 19:00:55 UTC

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alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg: "ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM\:"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; classtype: denial-of-service; sid: 2001795; rev:8;)

Added 2008-01-25 10:03:39 UTC

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alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg: "ET DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM\:"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; classtype: denial-of-service; sid: 2001795; rev:8;)

Added 2008-01-25 10:03:39 UTC

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alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg: "BLEEDING-EDGE DOS Excessive SMTP MAIL-FROM DDoS?"; flow: to_server, established; content:"MAIL FROM\:"; nocase; window: 0; id:0; threshold: type limit, track by_src, count 30, seconds 60; classtype: denial-of-service; sid: 2001795; rev:7; )

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