Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE BunnyLoader 3.0 Heartbeat Response"; flow:established,to_client; flowbits:isset,ET.BunnyLoaderv3.Heartbeat; http.stat_code; content:"200"; http.content_len; byte_test:0,=,7,0,string,dec; http.response_body; content:"ACTIVE|0a|"; fast_pattern; isdataat:!1,relative; reference:url,twitter.com/ViriBack/status/1757953408747569644; reference:md5,194118c43c65faad06bf5ff6cd9b52a2; classtype:trojan-activity; sid:2050888; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_and_Server, created_at 2024_02_15, deployment Perimeter, malware_family BunnyLoader, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_02_15; target:dest_ip;)