ET INFO Webhook/HTTP Request Inspection Service Domain (webhook .site in TLS SNI)

SID: 2034634Rev: 30 views
History
Sourceet/open
CreatedDecember 8, 2021
UpdatedAugust 25, 2023
Classificationmisc-activity
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;)

Metadata

affected productWindows_XP_Vista_7_8_10_Server_32_64_Bit
attack targetClient_Endpoint
created at2021_12_08
deploymentPerimeter
performance impactLow
confidenceHigh
signature severityInformational
updated at2023_08_25
mitre tactic idTA0010
mitre tactic nameExfiltration
mitre technique idT1567
mitre technique nameExfiltration_Over_Web_Service

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