alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed TinyNuke Payload Request (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; bsize:12; content:"/syncloh.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:2067643; 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_02_12, deployment Perimeter, deployment SSLDecrypt, malware_family TinyNuke, confidence High, signature_severity Major, updated_at 2026_02_12; target:src_ip;)