Versions (3)
Version DetailsCurrent
Rev: 4 • Sep 23, 2010, 12:00 PMGPL NETBIOS SMB IActivation little endian bind attempt
alert tcp $EXTERNAL_NET any -> $HOME_NET 139 (msg:"GPL NETBIOS SMB IActivation little endian bind attempt"; flow:established,to_server; content:"|00|"; depth:1; content:"|FF|SMB%"; within:5; distance:3; byte_test:1,!&,128,6,relative; content:"&|00|"; within:2; distance:56; content:"|5C|PIPE|5C 00|"; distance:4; nocase; byte_jump:2,-17,relative,from_beginning,little; isdataat:4,relative; content:"|05|"; byte_test:1,&,16,3,relative; content:"|0B|"; within:1; distance:1; content:"|B8|J|9F|M|1C|}|CF 11 86 1E 00| |AF|n|7C|W"; within:16; distance:29; flowbits:set,dce.iactivation.bind; flowbits:noalert; classtype:protocol-command-decode; sid:2103378; rev:4; metadata:created_at 2010_09_23, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)
Sep 23, 2010, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
Oct 15, 2025, 9:35 PM
rules/emerging-netbios.rules