alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed StealC Payload Request (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; bsize:12; content:"/Clipper.exe"; fast_pattern; http.header_names; content:!"|0d 0a|user-agent|0d 0a|"; nocase; content:!"|0d 0a|referer|0d 0a|"; nocase; reference:md5,f20fae792ff01acd0cfb26a3d6cfc4be; classtype:trojan-activity; sid:2067644; rev:1; metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_02_12, deployment Perimeter, deployment SSLDecrypt, malware_family Stealc, confidence Medium, signature_severity Major, updated_at 2026_02_12; target:dest_ip;)