Versions (3)
Version DetailsCurrent
Rev: 2 • Nov 15, 2023, 12:00 PMET MALWARE Latrodectus Alive Response M1
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Latrodectus Alive Response M1"; flow:established,to_client; flowbits:isset,ET.Latrodectus.alive; http.stat_code; content:"200"; http.server; content:"nginx/"; startswith; file.data; bsize:12; content:"5,1"; startswith; fast_pattern; pcre:"/^5,1[0-9]{9}$/"; classtype:trojan-activity; sid:2049232; rev:2; metadata:attack_target Client_Endpoint, created_at 2023_11_15, deployment Perimeter, malware_family Latrodectus, performance_impact Significant, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_15, reviewed_at 2024_02_13; 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