Versions (3)
Version DetailsCurrent
Rev: 3 • Apr 29, 2019, 12:00 PMET MALWARE Novaloader Stage 2 VBS Request
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Novaloader Stage 2 VBS Request"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/cabaco2.txt"; fast_pattern; nocase; endswith; http.user_agent; content:"Mozilla/4.0 (compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest.5)"; reference:url,www.zscaler.com/blogs/research/novaloader-yet-another-brazilian-banking-malware-family; reference:md5,4ef89349a52f9fcf9a139736e236217e; classtype:trojan-activity; sid:2027289; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2019_04_29, deployment Perimeter, confidence High, signature_severity Major, tag Novaloader, updated_at 2020_09_17;)
Apr 29, 2019, 12:00 PM
Sep 17, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules