alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MagicG Stealer Exfil (POST)"; flow:established,to_server; flowbits:set,ET.MagicG; http.method; content:"POST"; http.uri; bsize:7; content:"/upload"; http.user_agent; bsize:19; content:"WinHTTP|20|Example|2f|1|2e|0"; http.request_body; content:"name|3d 22|account|5f|info|22|"; fast_pattern; content:"screenshot_monitor"; content:"Software.txt"; reference:md5,62505e25eea181676a1bd047b58916c2; classtype:command-and-control; sid:2069264; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_05_11, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag c2, updated_at 2026_05_11, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)