Versions (4)
Version DetailsCurrent
Rev: 5 • May 26, 2021, 12:00 PMET MALWARE BazaLoader CnC Activity
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE BazaLoader CnC Activity"; flow:established,to_server; http.method; content:"GET"; http.uri; content:!"."; content:!"&"; http.header; content:"Date|3a 20|"; content:"GMT|0d 0a|"; distance:0; pcre:"/^[a-z]{3,15}\x3a\x20/Rs"; content:"|0d 0a|User-Agent|3a 20|apiutwq|0d 0a|"; fast_pattern; distance:100; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; reference:md5,96764a0a62e66a147a3d4db0e59a6e34; classtype:command-and-control; sid:2033033; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_05_26, deployment Perimeter, deployment SSLDecrypt, deprecation_reason Age, malware_family BazaLoader, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_12, reviewed_at 2024_01_05;)
May 26, 2021, 12:00 PM
Mar 12, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 11, 2025, 9:34 PM
rules/emerging-malware.rules