ET EXPLOIT_KIT Observed ClickFix Payload Delivery Domain (cptoptious .com in TLS SNI)
Sourceet/open
CreatedDecember 31, 2025
UpdatedDecember 31, 2025
Classificationexploit-kit
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Observed ClickFix Payload Delivery Domain (cptoptious .com in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".cptoptious.com"; endswith; fast_pattern; classtype:exploit-kit; sid:2066514; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2025_12_31, deployment Perimeter, malware_family ClickFix, performance_impact Low, confidence High, signature_severity Major, tag Exploit_Kit, updated_at 2025_12_31, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;)
Metadata
affected productWeb_Browsers
attack targetClient_Endpoint
created at2025_12_31
deploymentPerimeter
malware familyClickFix
performance impactLow
confidenceHigh
signature severityMajor
tagExploit_Kit
updated at2025_12_31
mitre tactic idTA0001
mitre tactic nameInitial_Access
mitre technique idT1189
mitre technique nameDrive_by_Compromise
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