Versions (3)
Version DetailsCurrent
Rev: 1 • Nov 15, 2023, 12:00 PMET MALWARE Latrodectus 404 Response
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Latrodectus 404 Response"; flow:established,to_client; http.stat_code; content:"404"; http.server; content:"nginx/"; startswith; file.data; content:"<TITLE>404 Not Found</TITLE>|0a 20 20|"; fast_pattern; content:"</BODY></HTML>"; distance:0; pcre:"/^(?:\r\n){50}$/R"; classtype:trojan-activity; sid:2049233; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_11_15, deployment Perimeter, malware_family Latrodectus, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_15; target:dest_ip;)
Nov 15, 2023, 12:00 PM
Dec 15, 2023, 12:00 PM
Nov 16, 2023, 11:00 PM
Aug 18, 2025, 8:35 PM
rules/emerging-malware.rules