diff --git a/applications/979_途途课堂/meta.json b/applications/979_途途课堂/meta.json
index 67f8d10..9030a82 100644
--- a/applications/979_途途课堂/meta.json
+++ b/applications/979_途途课堂/meta.json
@@ -1,18 +1,18 @@
 {
-  "id": "96f2105f-f8fd-4a2e-8997-94cb67106d6e",
+  "id": "749ab96c-041a-1be5-6fb9-18bba219bba9",
   "name": "979_途途课堂",
   "longName": "979_途途课堂",
-  "developer": "",
-  "website": "",
+  "developer": "北京途途向上线上学科培训学校",
+  "website": "https://gaotu100.com",
   "packageName": {
-    "android": "",
-    "ios": ""
+    "android": "com.gaotu100.tutu",
+    "ios": "com.gaotu100.tutu"
   },
   "properties": {
-    "category": "",
-    "subcategory": "",
+    "category": "business-systems",
+    "subcategory": "general-business",
     "content": "unknown",
-    "parentApp": "",
-    "risk": 1
+    "risk": 1,
+    "characteristics": "vulnerability,saas"
   }
 }
\ No newline at end of file
diff --git a/applications/979_途途课堂/signature.json b/applications/979_途途课堂/signature.json
index 1107258..55fe82c 100644
--- a/applications/979_途途课堂/signature.json
+++ b/applications/979_途途课堂/signature.json
@@ -1,3 +1,71 @@
 {
-  "surrogates": []
-}
+  "surrogates": [
+    {
+      "name": "surrogate_1",
+      "description": "",
+      "signatures": [
+        {
+          "name": "979_途途课堂_common.server_fqdn",
+          "conditions": [
+            {
+              "attributeType": "string",
+              "description": "",
+              "attributeName": "common.server_fqdn",
+              "negate_option": false,
+              "items": [
+                {
+                  "item": "$p.gsxcdn.com",
+                  "description": ""
+                },
+                {
+                  "item": "$file.gsxservice.com",
+                  "description": ""
+                },
+                {
+                  "item": "$pb0.genshuixue.com",
+                  "description": ""
+                },
+                {
+                  "item": "$fast-api.wenzaizhibo.com",
+                  "description": ""
+                },
+                {
+                  "item": "$habo-time.baijiahulian.com",
+                  "description": ""
+                },
+                {
+                  "item": "$api.gaotu100.com",
+                  "description": ""
+                },
+                {
+                  "item": "$p.gsxtj.com",
+                  "description": ""
+                },
+                {
+                  "item": "$i.gsxcdn.com",
+                  "description": ""
+                },
+                {
+                  "item": "$m.gaotu.cn",
+                  "description": ""
+                },
+                {
+                  "item": "$rock-gateway.baijia.com",
+                  "description": ""
+                },
+                {
+                  "item": "$m.gaotu100.com",
+                  "description": ""
+                },
+                {
+                  "item": "$materialcenter.gsxcdn.com",
+                  "description": ""
+                }
+              ]
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file