alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET RETIRED Win32/AMGO Keylogger - Keylogger Started Message via Telegram (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/bot"; startswith; content:"/sendMessage"; distance:0; http.user_agent; content:"Go-http-client/"; startswith; http.host; bsize:16; content:"api.telegram.org"; http.request_body; content:"|22|text|22 3a 22|Keylogger started|22|"; fast_pattern; reference:url,twitter.com/suyog41/status/1635247339593158657; reference:md5,838eaa6343e3b6d085a23f5b3fbfa802; classtype:trojan-activity; sid:2044584; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_03_13, deployment Perimeter, deployment SSLDecrypt, former_category MALWARE, malware_family AMGO, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_30, reviewed_at 2024_09_30; target:src_ip;)