alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE AHK.CREDSTEALER.A MalDoc Retrieving Payload"; flow:established,to_server; http.method; content:"GET"; http.uri; pcre:"/^\/[0-9]{6,16}-(?:pro|xl2|us1)$/s"; http.user_agent; bsize:10; content:"AutoHotkey"; fast_pattern; http.header_names; content:!"|0d 0a|Connection"; content:!"|0d 0a|Referer|0d 0a|"; reference:url,www.trendmicro.com/en_us/research/20/l/stealth-credential-stealer-targets-us-canadian-bank-customers.html; classtype:trojan-activity; sid:2031433; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_18, deployment Perimeter, confidence High, signature_severity Major, updated_at 2024_03_12;)