debug_wechat_send7.js
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/**
* Frida debug script v7 — deep inspect u01.g2 and u01.f2 constructor
*/
function log(tag, msg) {
console.log("[" + tag + "] " + msg);
}
function deepInspect(obj, tag, depth) {
if (!obj || depth <= 0) return;
var cls = obj.getClass();
log(tag, "class=" + cls.getName());
var fields = cls.getDeclaredFields();
for (var i = 0; i < fields.length; i++) {
var f = fields[i];
f.setAccessible(true);
try {
var val = f.get(obj);
if (val === null) {
log(tag, " " + f.getName() + " = null [" + f.getType().getName() + "]");
} else if (f.getType().getName() === "java.lang.String") {
log(tag, " " + f.getName() + " = \"" + val + "\" [String]");
} else if (f.getType().getName() === "int" || f.getType().getName() === "long") {
log(tag, " " + f.getName() + " = " + val + " [" + f.getType().getName() + "]");
} else if (f.getType().getName() === "boolean") {
log(tag, " " + f.getName() + " = " + val + " [boolean]");
} else if (f.getType().getName().startsWith("[L")) {
log(tag, " " + f.getName() + " = array [" + f.getType().getName() + "]");
} else {
log(tag, " " + f.getName() + " = " + val.toString().substring(0, 80) + " [" + f.getType().getName() + "]");
}
} catch (e) {
log(tag, " " + f.getName() + " [error: " + e + "]");
}
}
// Also inspect methods
var methods = cls.getDeclaredMethods();
for (var i = 0; i < methods.length; i++) {
var m = methods[i];
if (m.getModifiers() & 0x0001) { // public
var params = "";
var pts = m.getParameterTypes();
for (var j = 0; j < pts.length; j++) {
params += pts[j].getName() + ",";
}
log(tag, " method: " + m.getName() + "(" + params + ") -> " + m.getReturnType().getName());
}
}
}
Java.perform(function () {
log("MAIN", "Inspecting u01.g2 and u01.f2...");
try {
var f2 = Java.use("u01.f2");
var constructors = f2.class.getDeclaredConstructors();
for (var i = 0; i < constructors.length; i++) {
var ctor = constructors[i];
var params = ctor.getParameterTypes();
var sig = "";
for (var j = 0; j < params.length; j++) {
sig += params[j].getName() + ",";
}
log("MAIN", "u01.f2 constructor: (" + sig + ")");
}
} catch (e) {
log("MAIN", "f2 constructor error: " + e);
}
try {
var g2 = Java.use("u01.g2");
var constructors = g2.class.getDeclaredConstructors();
for (var i = 0; i < constructors.length; i++) {
var ctor = constructors[i];
var params = ctor.getParameterTypes();
var sig = "";
for (var j = 0; j < params.length; j++) {
sig += params[j].getName() + ",";
}
log("MAIN", "u01.g2 constructor: (" + sig + ")");
}
log("MAIN", "u01.g2 methods:");
var methods = g2.class.getDeclaredMethods();
for (var i = 0; i < methods.length; i++) {
var m = methods[i];
if (m.getModifiers() & 0x0001) {
var params = "";
var pts = m.getParameterTypes();
for (var j = 0; j < pts.length; j++) {
params += pts[j].getName() + ",";
}
log("MAIN", " " + m.getName() + "(" + params + ") -> " + m.getReturnType().getName());
}
}
} catch (e) {
log("MAIN", "g2 inspect error: " + e);
}
// Hook f2 constructor to capture g2 instance
try {
var f2cls = Java.use("u01.f2");
var ctors = f2cls.class.getDeclaredConstructors();
for (var i = 0; i < ctors.length; i++) {
var ctor = ctors[i];
var ptypes = ctor.getParameterTypes();
var overloadSig = [];
for (var j = 0; j < ptypes.length; j++) {
overloadSig.push(ptypes[j].getName());
}
log("MAIN", "Hooking f2 constructor overload: " + overloadSig.join(","));
// Use Frida's overload system
try {
if (overloadSig.length === 1) {
f2cls.$init.overload(overloadSig[0]).implementation = function(arg0) {
log("F2_CTOR", "u01.f2 created with 1 arg: " + arg0);
if (arg0) {
deepInspect(arg0, "G2_INSIDE", 1);
}
this.$init(arg0);
};
} else if (overloadSig.length === 2) {
f2cls.$init.overload(overloadSig[0], overloadSig[1]).implementation = function(arg0, arg1) {
log("F2_CTOR", "u01.f2 created with 2 args");
if (arg0) deepInspect(arg0, "G2_INSIDE", 1);
this.$init(arg0, arg1);
};
} else if (overloadSig.length === 3) {
f2cls.$init.overload(overloadSig[0], overloadSig[1], overloadSig[2]).implementation = function(arg0, arg1, arg2) {
log("F2_CTOR", "u01.f2 created with 3 args");
if (arg0) deepInspect(arg0, "G2_INSIDE", 1);
this.$init(arg0, arg1, arg2);
};
}
} catch (e) {
log("MAIN", "Failed to hook constructor: " + e);
}
}
} catch (e) {
log("MAIN", "f2 constructor hook error: " + e);
}
// Also hook f2.run to show full g2 fields
try {
var f2cls = Java.use("u01.f2");
f2cls.run.implementation = function() {
log("F2_RUN", "===== u01.f2.run() =====");
try {
var dField = this.getClass().getDeclaredField("d");
dField.setAccessible(true);
var g2 = dField.get(this);
if (g2) {
deepInspect(g2, "G2_FULL", 2);
}
} catch (e) {
log("F2_RUN", "Failed to get d field: " + e);
}
this.run();
log("F2_RUN", "===== done =====");
};
} catch (e) {
log("MAIN", "f2.run hook error: " + e);
}
log("MAIN", "All hooks installed. Send a message manually.");
});