alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT ZPHP Domain in TLS SNI (forumsecrets .com)"; flow:established,to_server; tls.sni; dotprefix; content:".forumsecrets.com"; endswith; fast_pattern; reference:url,www.trellix.com/en-us/about/newsroom/stories/research/new-techniques-of-fake-browser-updates.html; reference:url,infosec.exchange/@monitorsg/111442806557991840; classtype:exploit-kit; sid:2049271; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2023_11_20, deployment Perimeter, former_category EXPLOIT_KIT, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, updated_at 2023_11_20;)

Reference
URL	http://www.trellix.com/en-us/about/newsroom/stories/research/new-techniques-of-fake-browser-updates.html
URL	http://infosec.exchange/@monitorsg/111442806557991840

Metadata
affected_product	Web_Browsers
attack_target	Client_Endpoint
created_at	2023_11_20
deployment	Perimeter
former_category	EXPLOIT_KIT
performance_impact	Low
confidence	High
signature_severity	Minor
tag	Exploit_Kit
updated_at	2023_11_20