alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN [PTsecurity] JS.Trojan-Downloader.Nemucod.yo HTTP POST (:Exec:)"; flow: established, to_server; content:!"Referer|3a|"; http_header; content:"|3a 3a 3a|Exec|3a 3a 3a|http"; http_client_body; depth:40; fast_pattern; content:"|3a|//"; http_client_body; distance:0; within:4; content:".exe|3a 3a|";http_client_body; distance:0; within:100; threshold:type limit, track by_src, count 1, seconds 30; metadata: former_category TROJAN; classtype:trojan-activity; sid:2024701; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Internet, signature_severity Major, created_at 2017_09_12, malware_family Nemucod, performance_impact Moderate, updated_at 2017_09_12;)

Added 2017-09-12 16:23:29 UTC

Topic revision: r1 - 2017-09-12 - TWikiGuest
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