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;
)