#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits:!M; dsize:0; flags:F,12; ack:0; window:2048; threshold: type both, track by_dst, count 1, seconds 60; reference:url,doc.emergingthreats.net/2000543; classtype:attempted-recon; sid:2000543; rev:7; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2018-09-13 19:37:07 UTC

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Added 2018-09-13 17:52:21 UTC

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#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits:!M; dsize:0; flags:F,12; ack:0; window:2048; threshold: type both, track by_dst, count 1, seconds 60; reference:url,doc.emergingthreats.net/2000543; classtype:attempted-recon; sid:2000543; rev:7; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2017-08-07 20:55:15 UTC

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#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits:!M; dsize:0; flags:F,12; ack:0; window:2048; threshold: type both, track by_dst, count 1, seconds 60; reference:url,doc.emergingthreats.net/2000543; classtype:attempted-recon; sid:2000543; rev:7;)

Added 2011-10-12 19:09:41 UTC

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#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits:!M; dsize:0; flags:F,12; ack:0; window:2048; threshold: type both, track by_dst, count 1, seconds 60; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2000543; sid:2000543; rev:7;)

Added 2011-09-15 14:46:15 UTC

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#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits:!M; dsize:0; flags:F,12; ack:0; window:2048; threshold: type both, track by_dst, count 1, seconds 60; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2000543; sid:2000543; rev:7;)

Added 2011-09-14 20:37:11 UTC

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#alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits:!M; dsize:0; flags:F,12; ack:0; window:2048; threshold: type both, track by_dst, count 1, seconds 60; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2000543; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid:2000543; rev:7;)

Added 2011-02-04 17:21:15 UTC

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alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits:!M; dsize:0; flags:F,12; ack:0; window:2048; threshold: type both, track by_dst, count 1, seconds 60; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2000543; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid:2000543; rev:7;)

Added 2010-04-26 10:34:58 UTC

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alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits:!M; dsize:0; flags:F,12; ack:0; window:2048; threshold: type both, track by_dst, count 1, seconds 60; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2000543; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid:2000543; rev:7;)

Added 2010-04-26 10:34:58 UTC

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alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits:!M; dsize:0; flags:F,12; ack:0; window:2048; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2000543; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid:2000543; rev:6;)

Added 2009-07-14 13:39:11 UTC

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alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits:!M; dsize:0; flags:F,12; ack:0; window:2048; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2000543; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid:2000543; rev:6;)

Added 2009-07-14 13:39:11 UTC

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alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits: M; dsize: 0; flags: F,12; ack: 0; window: 2048; classtype: attempted-recon; reference:url,doc.emergingthreats.net/2000543; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid: 2000543; rev:6;)

Added 2009-02-12 18:21:19 UTC

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alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits: M; dsize: 0; flags: F,12; ack: 0; window: 2048; classtype: attempted-recon; reference:url,doc.emergingthreats.net/2000543; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid: 2000543; rev:6;)

Added 2009-02-12 18:21:19 UTC

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alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits: M; dsize: 0; flags: F,12; ack: 0; window: 2048; classtype: attempted-recon; sid: 2000543; rev:5;)

Added 2008-11-11 21:00:22 UTC

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alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits: M; dsize: 0; flags: F,12; ack: 0; window: 2048; classtype: attempted-recon; sid: 2000543; rev:5;)

Added 2008-11-11 21:00:22 UTC

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alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits: M; dsize: 0; flags: F,12; ack: 0; window: 2048; reference:arachnids,162; classtype: attempted-recon; sid: 2000543; rev:4;)

Added 2008-01-29 10:56:40 UTC

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alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -f -sF"; fragbits: M; dsize: 0; flags: F,12; ack: 0; window: 2048; reference:arachnids,162; classtype: attempted-recon; sid: 2000543; rev:4;)

Added 2008-01-29 10:56:40 UTC

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alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg: "BLEEDING-EDGE SCAN NMAP -f -sF"; fragbits: M; dsize: 0; flags: F,12; ack: 0; window: 2048; reference:arachnids,162; classtype: attempted-recon; sid: 2000543; rev:3; )

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