alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sS window 2048"; fragbits:!D; dsize:0; flags:S,12; ack:0; window:2048; threshold: type both, track by_dst, count 1, seconds 60; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2000537; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid:2000537; rev:8;)

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

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sS window 2048"; fragbits:!D; dsize:0; flags:S,12; ack:0; window:2048; threshold: type both, track by_dst, count 1, seconds 60; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2000537; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid:2000537; rev:8;)

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

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sS window 2048"; fragbits:!D; dsize:0; flags:S,12; ack:0; window:2048; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2000537; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid:2000537; rev:7;)

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

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sS window 2048"; fragbits:!D; dsize:0; flags:S,12; ack:0; window:2048; classtype:attempted-recon; reference:url,doc.emergingthreats.net/2000537; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid:2000537; rev:7;)

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

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sS"; fragbits: D; dsize: 0; flags: S,12; ack: 0; window: 2048; classtype: attempted-recon; reference:url,doc.emergingthreats.net/2000537; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid: 2000537; rev:6;)

Added 2009-02-11 19:24:44 UTC

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sS"; fragbits: D; dsize: 0; flags: S,12; ack: 0; window: 2048; classtype: attempted-recon; reference:url,doc.emergingthreats.net/2000537; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/SCAN/SCAN_NMAP; sid: 2000537; rev:6;)

Added 2009-02-11 19:24:44 UTC

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sS"; fragbits: D; dsize: 0; flags: S,12; ack: 0; window: 2048; classtype: attempted-recon; sid: 2000537; rev:5;)

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

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sS"; fragbits: D; dsize: 0; flags: S,12; ack: 0; window: 2048; classtype: attempted-recon; sid: 2000537; rev:5;)

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

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sS"; fragbits: D; dsize: 0; flags: S,12; ack: 0; window: 2048; reference:arachnids,162; classtype: attempted-recon; sid: 2000537; rev:4;)

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

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sS"; fragbits: D; dsize: 0; flags: S,12; ack: 0; window: 2048; reference:arachnids,162; classtype: attempted-recon; sid: 2000537; rev:4;)

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

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg: "BLEEDING-EDGE SCAN NMAP -sS"; fragbits: D; dsize: 0; flags: S,12; ack: 0; window: 2048; reference:arachnids,162; classtype: attempted-recon; sid: 2000537; rev:3; )