alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Mermaid Ransomware Variant CnC? Activity M4"; flow:established,to_server; content:"GET"; http_method; content:"=ID|3a 20|"; http_uri; content:"|20 20|Key1|3a 20 20|"; http_uri; content:"|20 20|Key2|3a 20 20|"; http_uri; fast_pattern; content:"Mozilla/3.0 (compatible|3b 20|Indy Library)"; http_user_agent; depth:38; isdataat:!1,relative; http_header_names; content:!"Referer"; reference:md5,fc78e6e58352151fb77a4b92f239d381; classtype:trojan-activity; sid:2029496; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_19, deployment Perimeter, former_category MALWARE, signature_severity Major, tag Ransomware, updated_at 2020_02_19, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)

Added 2021-10-04 19:25:00 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Mermaid Ransomware Variant CnC? Activity M4"; flow:established,to_server; content:"GET"; http_method; content:"=ID|3a 20|"; http_uri; content:"|20 20|Key1|3a 20 20|"; http_uri; content:"|20 20|Key2|3a 20 20|"; http_uri; fast_pattern; content:"Mozilla/3.0 (compatible|3b 20|Indy Library)"; http_user_agent; depth:38; isdataat:!1,relative; http_header_names; content:!"Referer"; reference:md5,fc78e6e58352151fb77a4b92f239d381; classtype:trojan-activity; sid:2029496; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_19, deployment Perimeter, former_category MALWARE, performance_impact Low, signature_severity Major, tag Ransomware, updated_at 2020_02_19;)

Added 2021-09-21 20:00:46 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Mermaid Ransomware Variant CnC? Activity M4"; flow:established,to_server; content:"GET"; http_method; content:"=ID|3a 20|"; http_uri; content:"|20 20|Key1|3a 20 20|"; http_uri; content:"|20 20|Key2|3a 20 20|"; http_uri; fast_pattern; content:"Mozilla/3.0 (compatible|3b 20|Indy Library)"; http_user_agent; depth:38; isdataat:!1,relative; http_header_names; content:!"Referer"; reference:md5,fc78e6e58352151fb77a4b92f239d381; classtype:trojan-activity; sid:2029496; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_18, deployment Perimeter, former_category MALWARE, performance_impact Low, signature_severity Major, tag Ransomware, updated_at 2020_02_18;)

Added 2020-08-05 19:17:36 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Mermaid Ransomware Variant CnC? Activity M4"; flow:established,to_server; content:"GET"; http_method; content:"=ID|3a 20|"; http_uri; content:"|20 20|Key1|3a 20 20|"; http_uri; content:"|20 20|Key2|3a 20 20|"; http_uri; fast_pattern; content:"Mozilla/3.0 (compatible|3b 20|Indy Library)"; http_user_agent; depth:38; isdataat:!1,relative; http_header_names; content:!"Referer"; metadata: former_category MALWARE; reference:md5,fc78e6e58352151fb77a4b92f239d381; classtype:trojan-activity; sid:2029496; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, tag Ransomware, signature_severity Major, created_at 2020_02_18, performance_impact Low, updated_at 2020_02_18;)

Added 2020-02-19 18:51:51 UTC


Topic revision: r1 - 2021-10-04 - TWikiGuest
 
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