diff --git a/AquaMai.Core/Helpers/NetPacketHook.cs b/AquaMai.Core/Helpers/NetPacketHook.cs
index 44b236d5..d20640d4 100644
--- a/AquaMai.Core/Helpers/NetPacketHook.cs
+++ b/AquaMai.Core/Helpers/NetPacketHook.cs
@@ -56,10 +56,14 @@ public class NetPacketHook
                     !JsonHelper.DeepEqual(responseJson, JSON.Load(decodedResponse)))
                 {
                     var modifiedResponse = Encoding.UTF8.GetBytes(responseJson.ToJSON());
+                    if (!Shim.NetHttpClientDecryptsResponse)
+                    {
+                        modifiedResponse = Shim.EncryptNetPacketBody(modifiedResponse);
+                    }
                     memoryStream.SetLength(0);
                     memoryStream.Write(modifiedResponse, 0, modifiedResponse.Length);
                     memoryStream.Seek(0, SeekOrigin.Begin);
-                    MelonLogger.Msg($"[NetPacketExtension] Modified response for {api} ({decodedResponse.Length} bytes -> {modifiedResponse.Length} bytes)");
+                    MelonLogger.Msg($"[NetPacketExtension] Modified response for {api} ({decryptedResponse.Length} bytes -> {modifiedResponse.Length} bytes)");
                 }
             }
         }
diff --git a/AquaMai.Core/Helpers/Shim.cs b/AquaMai.Core/Helpers/Shim.cs
index 0460d550..17a90f3d 100644
--- a/AquaMai.Core/Helpers/Shim.cs
+++ b/AquaMai.Core/Helpers/Shim.cs
@@ -89,6 +89,35 @@ public static class Shim
         }
     }
 
+    public static byte[] EncryptNetPacketBody(byte[] data)
+    {
+        var methods = AccessTools.TypeByName("Net.CipherAES").GetMethods();
+        var method = methods.FirstOrDefault(it => it.Name == "Encrypt" && it.GetParameters().Length <= 2);
+        if (method == null)
+        {
+            MelonLogger.Warning("No matching Net.CipherAES.Encrypt() method found");
+            // Assume encryption code is removed.
+            return data;
+        }
+        if (method.GetParameters().Length == 1)
+        {
+            return (byte[])method.Invoke(null, [data]);
+        }
+        else
+        {
+            object[] args = [data, null];
+            var result = (bool)method.Invoke(null, args);
+            if (result)
+            {
+                return (byte[])args[1];
+            }
+            else
+            {
+                throw new Exception("Net.CipherAES.Encrypt() failed");
+            }
+        }
+    }
+
     public delegate string GetAccessTokenMethod(int index);
     public static readonly GetAccessTokenMethod GetAccessToken = Iife<GetAccessTokenMethod>(() =>
     {