Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Elusive Stealer CnC Exfil via Telegram"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/sendDocument"; endswith; http.host; content:"api.telegram.org"; bsize:16; http.request_body; content:"name|3d 22|chat|5f|id|22 0d 0a|"; content:"name|3d 22|caption|22 0d 0a|"; content:"ElusiveReadme.txt"; fast_pattern; reference:md5,0f00b9d4f63ec99dc4bb6dd729811e9a; reference:url,twitter.com/suyog41/status/1760168286711677328; classtype:trojan-activity; sid:2051071; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_02_22, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_22;)