Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Possible Vidar Stealer C2 Config In Steam Profile"; flow:established,to_client; http.response_body; content:"|3c|title|3e|Steam|20|Community|20 3a 3a 20|"; content:"http|3a 2f 2f|"; within:20; content:"|7c 3c 2f|title|3e|"; fast_pattern; pcre:"/http(?:s)?\x3a\x2f\x2f(?:[0-9]{1,3}\.){3}[0-9]{1,3}(?:\x3a[0-9]{1,5})?\x7c\x3c\x2ftitle\x3e/"; reference:md5,deb6e2ba0b5da298a176f135d0dbb902; classtype:trojan-activity; sid:2043334; rev:3; metadata:attack_target Client_Endpoint, created_at 2023_01_18, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_10_05, reviewed_at 2024_01_26;)