Versions (2)
Version DetailsCurrent
Rev: 3 • Dec 8, 2021, 12:00 PMET INFO Webhook/HTTP Request Inspection Service Domain (webhook .site in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Webhook/HTTP Request Inspection Service Domain (webhook .site in TLS SNI)"; flow:established,to_server; tls.sni; content:"webhook.site"; endswith; nocase; reference:md5,58f8070803608bd0bd2cb6b18351918e; reference:url,isc.sans.edu/forums/diary/InfoStealer+Using+webhooksite+to+Exfiltrate+Data/28088/; classtype:misc-activity; sid:2034634; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_12_08, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2023_08_25, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1567, mitre_technique_name Exfiltration_Over_Web_Service;)
Dec 8, 2021, 12:00 PM
Aug 25, 2023, 12:00 PM
Dec 8, 2021, 12:00 PM
May 31, 2024, 9:00 PM
rules/emerging-info.rules