Versions (4)
Version DetailsCurrent
Rev: 1 • Feb 27, 2024, 12:00 PMET MALWARE Win32/MarioLoader CnC Activity (POST) M2
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/MarioLoader CnC Activity (POST) M2"; flow:established,to_server; urilen:11; http.method; content:"POST"; http.uri; content:"/bot/report"; fast_pattern; http.header_names; content:"|0d 0a|X-Client-Uuid|0d 0a|"; http.header; content:"X-Client-Uuid|3a 20|"; pcre:"/^(?:(?:[a-z0-9]{8}\x2d)(?:[a-z0-9]{4}\x2d))(?:[a-z0-9]{4}\x2d)(?:[a-z0-9]{4}\x2d)(?:[a-z0-9]{12})[\r\n]/R"; http.user_agent; content:"Mozilla|2f|4|2e|0|20 28|compatible|3b 20|MSIE|20|7|2e|0|3b 20|Windows|20|NT|20|"; startswith; reference:md5,a0a3ab98d2cf869aec830a98d4be2dfa; classtype:trojan-activity; sid:2051121; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_02_27, deployment Perimeter, malware_family Win32_MarioLoader, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_27;)
Feb 27, 2024, 12:00 PM
Feb 27, 2024, 12:00 PM
Feb 27, 2024, 10:01 PM
Aug 13, 2025, 9:35 PM
rules/emerging-malware.rules