Network 1.1.0 Analysis

Headings are ordered by stage of the game.

Non-relevant addresses are censored after the second full stop (ex. static.google.* (just in case).

Sources:

mitmproxy: 1.0.1 Linux vs Windows

Hosts to block

See patch.sh of the current version.

1 Launcher

Connection type: entirely TCP / TLSv1.2

DNS requests:

sdk-os-static.mihoyo.*
log-upload-os.mihoyo.*
api-static.mihoyo.* Game update information (trigger by launcher button)
webstatic.mihoyo.*
genshin.mihoyo.*

2 Startup & login

Connection type: TCP/TLSv1.2 and TCP/HTTP

DNS requests, sorted by appearance:

dispatchosglobal.* Server listing (required, error 4201)
osasiadispatch.* Asia server
oseurodispatch.* Europa server
osusadispatch.* USA server
webstatic-sea.mihoyo.* In-game news (optional)
log-upload(-os).* Log server (optional)
ys-log-upload(-os).* General system information server (optional, >= 4.0.0)
hk4e-sdk-os.mihoyo.* Central login and sales server (required)
hk4e-api-os.mihoyo.* Announcements, alerts (optional)
sdk-os-static.mihoyo.* Accessed at late game / exit
(sg-)public-data-api.* General system information logging (< 3.7.0)

In addition to a few unity3d hosts which have no effect when blacklisted in /etc/hosts.

Driver error log

POST request to /log when mhypbase.dll is present.

Host: overseauspider.* or uspider.*
Data:

{
    "deviceModel": "possibly unique GUID",
    (....)
    "errorCategory":"MHYpBase",
    "logStr":"HoYoDriverInter",
    "stackTrace":"[onInstallDriverError] Status=0Error=0State=0"
}

3 Game data loader

Connection type: UDP

Untouched section until it becomes necessary.

autopatchhk.yuanshen.* "Persistent" data updates

4 Gameplay

autopatchhk.yuanshen.* Presumably xLua/HotFix patch server
minor-api.m* / minor-api-os.h* "apm" reporting (Telemetry.dll)
- Yet unused. Unknown trigger.

5 Crash reporter

Connection type: TCP/HTTP

POST request to /log:

Host: overseauspider.yuanshen.* or uspider.yuanshen.*
Data:

{
  "userName": "Test",    /* Constant */
  "time": "YYYY-MM-DD hh:mm:ss.0000",
  "frame": "",           /* Unclear, perhaps game frame count */
  "stackTrace": "Log::Logger() ....", /* Partially readable backtrace */
  "logStr": "[Login] OnPlayerLoginRsp: 31", /* Error 31-4302 or .. */
  "logStr": "[Login] OnGetPlayerTokenRsp: 21", /* Error 21-4301 aka BANNED */
  "logType": "Error",
  "deviceName": "NX",    /* Unclear */
  "deviceModel": "Wine (The Wine Project)",
  "operatingSystem": "Windows 10  (10.0...",
   /* ^ Data from HKLM\Software\Wow6432Node\Microsoft\Windows NT\CurrentVersion  */
  "version": "1.0_rel OSRELWin1.0.1_...", /* Game version (bottom left) */
  "exceptionSerialNum": "0",
  "pos": "",             /* Unclear, perhaps position on the map */
  "guid": "sha256 hash",
  /* ^ Data from HKEY_CURRENT_USER\Software\miHoYoSDK\ MIHOYOSDK_DEVICE_ID */
  "errorCode": "Default",
  "errorCodeToPlatform": 4302, /* Error 31-4302 or .. */
  "errorCodeToPlatform": 4301, /* Error 21-4301 aka BANNED */
  "serverName": "os_euro"  /* European server */
}

Answer, status 200 OK:

{
  "code": 0
}

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