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Rev: 1 • May 16, 2024, 12:00 PMET MALWARE Observed ACR Stealer Domain (iicc .fun) in TLS SNI
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed ACR Stealer Domain (iicc .fun) in TLS SNI"; flow:established,to_server; tls.sni; bsize:8; content:"iicc.fun"; fast_pattern; reference:url,malpedia.caad.fkie.fraunhofer.de/details/win.acr_stealer; reference:url,threatfox.abuse.ch/browse/malware/win.acr_stealer/; classtype:trojan-activity; sid:2052690; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2024_05_16, deployment Perimeter, malware_family ACR_Stealer, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_05_16, reviewed_at 2025_07_14;)
May 16, 2024, 12:00 PM
May 16, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Jul 14, 2025, 9:34 PM
rules/emerging-malware.rules