Versions (3)
Version DetailsCurrent
Rev: 1 • Jul 10, 2024, 12:00 PMET INFO Observed Commonly Actor Abused Online Service Domain (imgurl .ir in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Commonly Actor Abused Online Service Domain (imgurl .ir in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".imgurl.ir"; endswith; fast_pattern; classtype:misc-activity; sid:2054430; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_07_10, deployment Perimeter, confidence High, signature_severity Informational, tag TA_Abused_Online_Service, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_10;)
Jul 10, 2024, 12:00 PM
Jul 10, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 11, 2025, 10:35 PM
rules/emerging-info.rules