Bug #2216
Updated by Victor Julien over 6 years ago
Hello Gentlemen, I have a wonderful sig to Emotet that unfortunately is hitting where it shouldn`t. <pre> alert http $EXTERNAL_NET [443,7080,8080,80] -> $HOME_NET any (msg:"ETPRO TROJAN W32/Emotet.v4 Checkin Fake 404 Payload Response"; flow:established,from_server; content:"404"; http_stat_code; content:"Content-Type|3a 20|text/html"; http_header; pcre:"/Content-Length\x3a\x20\d{6}/Hmi"; file_data; content:!"<html"; nocase; pcre:"/^[\x20-\x7e\r\n]{0,20}[^\x20-\x7e\r\n][\x20-\x7e\r\n]{0,20}[^\x20-\x7e\r\n][\x20-\x7e\r\n]{0,20}[^\x20-\x7e\r\n]/si"; metadata: former_category TROJAN; reference:md5,dacdcd451204265ad6f44ef99db1f371; classtype:trojan-activity; sid:2828007; rev:2; metadata:created_at 2017_09_19, malware_family Emotet, updated_at 2017_09_19;) </pre>