debug_wechat_send2.js
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/**
* Frida debug script v2 — auto-test multiple send message call chains
* Usage: frida -U -f com.tencent.mm --no-pause -l debug_wechat_send2.js
*/
var testResults = [];
function log(tag, msg) {
console.log("[" + tag + "] " + msg);
}
// ── Test 1: builder.a() -> m1.a() (current path, returns boolean) ──
function testChain1(toUser, content) {
log("TEST1", "builder.a() -> m1.a()");
try {
var r1 = Java.use("u01.r1");
var builder = r1.a(toUser);
log("TEST1", "builder class=" + builder.getClass().getName());
var q1 = Java.use("u01.q1");
q1.e.call(builder, content);
q1.h.call(builder, 0);
var m1 = q1.a.call(builder);
log("TEST1", "result class=" + m1.getClass().getName());
var m1cls = Java.use("u01.m1");
var ret = m1cls.a.call(m1);
log("TEST1", "m1.a() returned=" + ret);
return { chain: "builder.a()->m1.a()", result: ret };
} catch (e) {
log("TEST1", "ERROR: " + e);
return { chain: "builder.a()->m1.a()", error: e.toString() };
}
}
// ── Test 2: builder.b() (returns void, maybe real submit) ──
function testChain2(toUser, content) {
log("TEST2", "builder.b() direct submit");
try {
var r1 = Java.use("u01.r1");
var builder = r1.a(toUser);
var q1 = Java.use("u01.q1");
q1.e.call(builder, content);
q1.h.call(builder, 0);
q1.b.call(builder); // void return
log("TEST2", "builder.b() called successfully (void)");
return { chain: "builder.b()", result: "void-ok" };
} catch (e) {
log("TEST2", "ERROR: " + e);
return { chain: "builder.b()", error: e.toString() };
}
}
// ── Test 3: builder.a() then call m1.a() with different args ──
function testChain3(toUser, content) {
log("TEST3", "Try m1 other methods");
try {
var r1 = Java.use("u01.r1");
var builder = r1.a(toUser);
var q1 = Java.use("u01.q1");
q1.e.call(builder, content);
q1.h.call(builder, 0);
var m1 = q1.a.call(builder);
var m1cls = Java.use("u01.m1");
// List all public methods on m1
var methods = m1cls.class.getDeclaredMethods();
for (var i = 0; i < methods.length; i++) {
var m = methods[i];
if ((m.getModifiers() & 0x0001) && m.getParameterTypes().length === 0) {
log("TEST3", "m1 method: " + m.getName() + "() -> " + m.getReturnType().getName());
}
}
// Try calling a() again to see if it's idempotent
var ret = m1cls.a.call(m1);
log("TEST3", "m1.a() = " + ret);
return { chain: "m1.inspect", result: ret };
} catch (e) {
log("TEST3", "ERROR: " + e);
return { chain: "m1.inspect", error: e.toString() };
}
}
// ── Test 4: Try g(String) setter instead of e(String) ──
function testChain4(toUser, content) {
log("TEST4", "builder.g() instead of e()");
try {
var r1 = Java.use("u01.r1");
var builder = r1.a(toUser);
var q1 = Java.use("u01.q1");
q1.g.call(builder, content); // g(String) returns q1
q1.h.call(builder, 0);
var m1 = q1.a.call(builder);
var m1cls = Java.use("u01.m1");
var ret = m1cls.a.call(m1);
log("TEST4", "m1.a() = " + ret);
return { chain: "builder.g()->m1.a()", result: ret };
} catch (e) {
log("TEST4", "ERROR: " + e);
return { chain: "builder.g()->m1.a()", error: e.toString() };
}
}
// ── Test 5: Try f(az0.h7) ──
function testChain5(toUser, content) {
log("TEST5", "Skip f() - requires az0.h7 object");
return { chain: "builder.f()", skipped: true };
}
// ── Test 6: Hook WCDB to see which chain triggers INSERT ──
function hookWCDB() {
try {
var SQLiteDatabase = Java.use("com.tencent.wcdb.database.SQLiteDatabase");
SQLiteDatabase.insert.overload('java.lang.String', 'java.lang.String', 'android.content.ContentValues').implementation = function(table, nullCol, values) {
if (table && table.indexOf("message") !== -1) {
var talker = values.getAsString("talker");
var content = values.getAsString("content");
var isSend = values.getAsInteger("isSend");
log("WCDB", "INSERT talker=" + talker + " isSend=" + isSend + " content=" + (content ? content.substring(0, 40) : "null"));
}
return this.insert(table, nullCol, values);
};
log("WCDB", "Hook installed");
} catch (e) {
log("WCDB", "Hook failed: " + e);
}
}
// ── Main ──
Java.perform(function() {
log("MAIN", "Waiting 5s for WeChat to initialize...");
hookWCDB();
setTimeout(function() {
log("MAIN", "Running tests...");
var toUser = "filehelper";
var content = "FridaTest_" + Date.now();
testChain1(toUser, content);
setTimeout(function() {
testChain2(toUser, content + "_B");
}, 2000);
setTimeout(function() {
testChain3(toUser, content + "_C");
}, 4000);
setTimeout(function() {
testChain4(toUser, content + "_D");
}, 6000);
setTimeout(function() {
log("MAIN", "All tests done. Check WeChat chat for messages.");
}, 8000);
}, 5000);
});