alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Snake Keylogger CnC Exfil via Telegram"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/sendDocument?chat_id="; http.request_body; content:"PC Name|3a|"; content:"Snake|20|Keylogger"; fast_pattern; content:"Snake|20|Keylogger"; distance:0; http.host; content:"telegram.org"; endswith; http.header_names; content:!"Referer"; content:!"Accept"; content:!"User-Agent"; classtype:trojan-activity; sid:2031604; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_02_03, deployment Perimeter, malware_family Snake_Keylogger, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_02_03;)