Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MalDoc Retrieving Qbot Payload 2022-06-14"; flow:established,to_server; http.method; content:"GET"; http.request_line; content:".RES HTTP/1.1"; endswith; bsize:<23; fast_pattern; http.uri; pcre:"/^\x2f\d{1,5}\x2eRES$/"; http.host; pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/"; http.user_agent; content:"ms-office|3b 20|MSOffice"; reference:url,isc.sans.edu/diary/rss/28728; reference:md5,e7015438268464cedad98b1544d643ad; classtype:trojan-activity; sid:2036983; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_14, deployment Perimeter, deprecation_reason Age, malware_family Qbot, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_12_02, reviewed_at 2024_12_02;)