alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE GoBrut/StealthWorker Requesting Brute Force List (flowbit set)"; flow:established,to_server; flowbits:set,ET.PhpMyAdminBrute.1; threshold:type limit, count 1, seconds 120, track by_src; http.method; content:"GET"; http.uri; content:"?worker=php_b"; fast_pattern; endswith; http.user_agent; content:"Ubuntu|3b 20|Linux|20|x86_64"; http.accept_enc; content:"gzip"; depth:4; endswith; http.header_names; content:!"Referer"; reference:md5,1c315f9487ad20c3ac72747f13968507; reference:url,blog.yoroi.company/research/gobrut-a-new-golang-botnet/; reference:url,blog.yoroi.company/research/new-gobrut-version-in-the-wild/; classtype:trojan-activity; sid:2033717; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_01_14, deployment Perimeter, malware_family PhpMyAdminBrute, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_09_17;)