diff --git a/applications/1321_云班课/meta.json b/applications/1321_云班课/meta.json
index 60be87a..e97d61f 100644
--- a/applications/1321_云班课/meta.json
+++ b/applications/1321_云班课/meta.json
@@ -1,18 +1,18 @@
 {
-  "id": "f2509b24-4584-40ea-91ee-33762e3c16af",
+  "id": "a5ff2f64-3f44-dbee-b1a4-d1226ed05703",
   "name": "1321_云班课",
   "longName": "1321_云班课",
-  "developer": "",
-  "website": "",
+  "developer": "北京智启蓝墨信息技术有限公司",
+  "website": "https://mosoteach.cn/",
   "packageName": {
-    "android": "",
-    "ios": ""
+    "android": "com.mosoink.teach",
+    "ios": "com.mosoink.teach"
   },
   "properties": {
-    "category": "",
-    "subcategory": "",
+    "category": "collaboration",
+    "subcategory": "social-networking",
     "content": "unknown",
-    "parentApp": "",
-    "risk": 1
+    "risk": 1,
+    "characteristics": "vulnerability"
   }
 }
\ No newline at end of file
diff --git a/applications/1321_云班课/signature.json b/applications/1321_云班课/signature.json
index 1107258..792675d 100644
--- a/applications/1321_云班课/signature.json
+++ b/applications/1321_云班课/signature.json
@@ -1,3 +1,31 @@
 {
-  "surrogates": []
-}
+  "surrogates": [
+    {
+      "name": "surrogate_1",
+      "description": "",
+      "signatures": [
+        {
+          "name": "1321_云班课_common.server_fqdn_",
+          "conditions": [
+            {
+              "attributeType": "string",
+              "description": "",
+              "attributeName": "common.server_fqdn",
+              "negate_option": false,
+              "items": [
+                {
+                  "item": "$coreapi.mosoteach.cn",
+                  "description": ""
+                },
+                {
+                  "item": "$api.mosoteach.cn",
+                  "description": ""
+                }
+              ]
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file