alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Matiex Keylogger Exfil Via Telegram"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/sendDocument?chat_id="; content:"|20|Matiex|20|Keylogger|20|"; fast_pattern; http.host; bsize:16; content:"api.telegram.org"; http.request_body; content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|document|22 3b 20|filename=|22|MatiexPasswords.txt|22 0d 0a|"; reference:url,twitter.com/James_inthe_box/status/1289205457559547910; reference:md5,1275d29213c2580894371739beb16148; classtype:command-and-control; sid:2030633; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_07_31, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_19;)