alert syslog $EXTERNAL_NET any -> $HOME_NET any (msg: "[BRO] RFC1918 address scanning the network"; content: "Scan|3a 3a|Port_Scan"; pcre:"/((192)\.(168)\.(\d+)\.(\d+)|(10)\.(\d+)\.(\d+)\.(\d+)|(172)\.(1[6,7,8,9])\.(\d+)\.(\d+)|(172)\.(2[0,1,2,3,4,5,6,7,8,9])\.(\d+)\.(\d+)|(172)\.(3[0,1])\.(\d+)\.(\d+)) scanned at least \d+ unique ports/smi"; program: bro; parse_src_ip: 1; threshold: type limit, track by_src, count 1, seconds 86400; flowbits: set,recon,86400; classtype: attempted-recon; reference: url,wiki.quadrantsec.com/bin/view/Main/5002798; sid:5002798; rev:3;)

-- Main.Sagan-Wiki-Add - 2016-8-30

New revisions of 5002798 will be below...

Topic revision: r1 - 2016-08-30 - Sagan-Wiki-Add
 
This site is powered by the TWiki collaboration platform Powered by PerlCopyright © 2008-2019 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback