Versions (3)
Version DetailsCurrent
Rev: 17 • Sep 23, 2010, 12:00 PMGPL NETBIOS SMB C$ share access
alert tcp $EXTERNAL_NET any -> $HOME_NET 139 (msg:"GPL NETBIOS SMB C$ share access"; flow:established,to_server; content:"|00|"; depth:1; content:"|FF|SMBu"; within:5; distance:3; byte_test:1,!&,128,6,relative; byte_jump:2,34,little,relative; content:"C|24 00|"; distance:2; nocase; content:!"IPC|24 00|"; within:5; distance:-5; nocase; classtype:protocol-command-decode; sid:2100533; rev:17; 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 6, 2025, 4:34 PM
rules/emerging-netbios.rules