Back to Rule

Rule History

SID: 2103142 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 3Sep 23, 2010, 12:00 PM

GPL NETBIOS SMB-DS Trans2 FIND_FIRST2 andx attempt

alert tcp $EXTERNAL_NET any -> $HOME_NET 445 (msg:"GPL NETBIOS SMB-DS Trans2 FIND_FIRST2 andx attempt"; flow:established,to_server; content:"|00|"; depth:1; content:"|FF|SMB"; within:4; distance:3; pcre:"/^(\x75|\x2d|\x2f|\x73|\xa2|\x2e|\x24|\x74)/sR"; content:"2"; depth:1; offset:39; byte_jump:2,0,little,relative; content:"|01 00|"; within:2; distance:29; flowbits:set,smb.trans2; flowbits:noalert; classtype:protocol-command-decode; sid:2103142; rev:3; metadata:created_at 2010_09_23, confidence Medium, 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 9, 2025, 9:35 PM

rules/emerging-netbios.rules