alert tcp-pkt $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Agent Tesla CnC Exfil via TCP"; flow:established,to_server; content:"Time|3a 20|"; startswith; content:"|3c|br|3e|User|20|Name|3a 20|"; distance:19; within:15; content:"|3c|br|3e|Computer|20|Name|3a 20|"; distance:0; content:"|3c|br|3e|OSFullName|3a 20|"; distance:0; fast_pattern; content:"|3c|br|3e|Password|3a 20|"; content:"|3c|br|3e 3c|hr|3e|"; endswith; reference:md5,f1b1fdd112b02733cd8e5d8ed62acec1; classtype:trojan-activity; sid:2063399; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_07_10, deployment Perimeter, malware_family AgentTesla, confidence High, signature_severity Critical, updated_at 2025_07_10; target:src_ip;)