Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Steallerium Stealer Data Exfil via Telegram (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/bot"; startswith; content:"|2f|sendDocument|3f|chat|5f|id"; content:"&caption=|f0 9f 94 94|New|20|Log|20|From|3a 20|"; fast_pattern; content:"|f0 9f 94 90|Password|3a 20|"; http.host; content:"api.telegram.org"; bsize:16; reference:url,twitter.com/suyog41/status/1696071374178222119; classtype:trojan-activity; sid:2047813; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_08_29, deployment Perimeter, deployment SSLDecrypt, malware_family Win32_Steallerium, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_08_29;)