Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE MSIL/NR42 Bot Parsing Config From Webpage"; flow:established,from_server; threshold:type both, track by_src, count 60, seconds 60; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"<sendusername>"; fast_pattern; content:"</sendusername>"; within:30; content:"<guser>"; distance:0; content:"</guser>"; distance:0; content:"<files>"; distance:0; content:"</files>"; distance:0; content:"<cmdua>"; distance:0; content:"</cmdua>"; distance:0; content:"<cmdkmt>"; distance:0; reference:md5,32730022593ebd2c93126d34bc60b654; classtype:trojan-activity; sid:2024182; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_04_06, deployment Perimeter, deprecation_reason Age, malware_family MSIL_NR42, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2024_05_06, reviewed_at 2024_05_06;)