Versions (2)
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Rev: 1 • Oct 23, 2025, 12:00 PMET MALWARE Observed Phantom Captcha Domain (aerobionix .com in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Phantom Captcha Domain (aerobionix .com in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".aerobionix.com"; endswith; fast_pattern; reference:md5,61660f072008998bf57f8ad602408b68; reference:url,www.sentinelone.com/labs/phantomcaptcha-multi-stage-websocket-rat-targets-ukraine-in-single-day-spearphishing-operation/; classtype:trojan-activity; sid:2065353; rev:1; metadata:attack_target Client_Endpoint, created_at 2025_10_23, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_23;)
Oct 23, 2025, 12:00 PM
Oct 23, 2025, 12:00 PM
Oct 23, 2025, 9:34 PM
Oct 24, 2025, 9:34 PM
rules/emerging-malware.rules