Versions (3)
Version DetailsCurrent
Rev: 1 • Feb 27, 2024, 12:00 PMET INFO Outbound SMB2 NTLM Auth Attempt to External Address
alert smb $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Outbound SMB2 NTLM Auth Attempt to External Address"; flow:established,to_server; content:"|fe|SMB"; content:"NTLMSSP|00 03 00 00 00|"; within:200; fast_pattern; classtype:misc-activity; sid:2051116; rev:1; metadata:attack_target Client_and_Server, created_at 2024_02_27, deployment Perimeter, performance_impact Significant, confidence High, signature_severity Minor, updated_at 2024_02_27; target:src_ip;)
Feb 27, 2024, 12:00 PM
Feb 27, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 21, 2024, 3:00 AM
rules/emerging-info.rules