alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Mermaid Ransomware Variant CnC? Activity M2"; flow:established,to_server; urilen:>50; content:"GET"; http_method; content:"data.php?info="; http_uri; fast_pattern; pcre:"/^[A-Za-z0-9\?=]{25,}$/URsi"; content:"Mozilla/3.0 (compatible|3b 20|Indy Library)"; http_user_agent; depth:38; http_header_names; content:!"Referer"; metadata: former_category MALWARE; reference:md5,b3bc3fe63fad42ae8bcd448b8aec3e3e; classtype:trojan-activity; sid:2029320; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2020_01_24, malware_family Ransomware, updated_at 2020_01_24;)

Added 2020-01-24 19:12:24 UTC


Topic revision: r1 - 2020-01-25 - TWikiGuest
 
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