alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Nexus Stealer CnC? Data Exfil"; flow:established,to_server; content:"POST"; http_method; content:".php"; isdataat:!1,relative; content:!"Mozilla"; http_user_agent; content:"{"; depth:1; http_client_body; content:"|7e 3b 5e 3b|Windows|20|"; distance:0; http_client_body; within:50; fast_pattern; content:"|7e 3b 5e 3b|"; distance:0; http_client_body; content:"|7e 3b 5e 3b|"; distance:0; http_client_body; content:"|7e 3b 5e 3b|"; distance:0; http_client_body; http_header_names; content:!"Referer"; metadata: former_category MALWARE; reference:md5,8bd8582155ef003b8a24d341d75f1d7f; classtype:trojan-activity; sid:2029298; 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_21, malware_family Nexus, updated_at 2020_01_21;)

Added 2020-01-21 18:44:57 UTC


Topic revision: r1 - 2020-01-21 - TWikiGuest
 
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