This is a CONNECT tunnel, through which encrypted HTTPS traffic flows.
Fiddler's HTTPS Decryption feature is enabled, but this specific tunnel was configured not to be decrypted. Settings can be found inside Tools > Options > HTTPS.
A SSLv3-compatible ServerHello handshake was found. Fiddler extracted the parameters below.
Version: 3.3 (TLS/1.2)
SessionID:B8 1E 89 A4 74 64 74 B6 3C FB 61 53 E9 63 7C 7C D3 78 57 03 A1 47 44 4E C4 C1 85 E8 BD 6D 04 1E
Random:40 DC CC BD 45 18 6A 8A B9 1E 7E 3F A7 32 97 A2 EF F9 83 6C A8 47 8E 46 5D AC 43 2E 15 A2 83 41
Cipher:TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 [0xCCA8]
CompressionSuite:NO_COMPRESSION [0x00]
Extensions:
renegotiation_info00
extended_master_secretempty
ALPNhttp/1.1

某宝搜fd抓包，那里有远程安装服务

好兄弟，等我学会了再教你