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utils.js
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utils.js
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// https://codeshare.frida.re/@lichao890427/find-android-hook/edit
// Any questions submit to https://github.com/lichao890427/frida_script
// Usage:
/*
// Get All Modules from /proc/self/maps
[Xiaomi MI 4LTE::com.baidu.wallet]-> getAllModules()
{
"path": "/data/app-lib/com.baidu.wallet-1/libbdpush_V2_7.so",
"vmmax": "2140905472",
"vmmin": "2140844032"
},
{
"path": "/data/data/com.baidu.wallet/files/.1/dex/apkDex/1-2.4.5.dex",
"vmmax": "2161364992",
"vmmin": "2160836608"
},
{
"path": "/data/local/tmp/re.frida.server/frida-agent-32.so",
"vmmax": "2172952576",
"vmmin": "2161606656"
},
{
"path": "/data/data/com.baidu.wallet/files/.100015/dex/apkDex/100015-1.0.0.dex",
"vmmax": "2189901824",
"vmmin": "2189869056"
}
...................
// Check got table hook
[Xiaomi MI 4LTE::com.baidu.wallet]-> checkConsistency("libdvm.so", 4)
check .got
.got 39/349 addr:41764b28 file-mem:0-40109708 __aeabi_idiv->libc.so.__divsi3
.got 44/349 addr:41764b3c file-mem:0-4010a2ec __aeabi_fadd->libc.so.__addsf3
.got 45/349 addr:41764b40 file-mem:0-4010a2e8 __aeabi_fsub->libc.so.__aeabi_frsub
.got 50/349 addr:41764b54 file-mem:0-40109864 __aeabi_dadd->libc.so.__adddf3
.got 115/349 addr:41764c58 file-mem:1f738-40109708 __aeabi_idiv->libc.so.__divsi3
.got 129/349 addr:41764c90 file-mem:1f738-4010a134 __aeabi_cdcmple->libc.so.__aeabi_cdcmpeq
.got 130/349 addr:41764c94 file-mem:1f738-401521e0 __aeabi_cfcmple->libm.so.__aeabi_cfrcmple
.got 136/349 addr:41764cac file-mem:1f738-7549c681 __android_log_print->libbaiduprotect.so.unknown
.got 138/349 addr:41764cb4 file-mem:1f738-4013a919 _Znaj->libstdc++.so._Znwj
.got 139/349 addr:41764cb8 file-mem:1f738-4013a927 _ZdaPv->libstdc++.so._ZdlPv
.got 161/349 addr:41764d10 file-mem:1f738-402d461b _ZSt24__stl_throw_length_errorPKc->libstlport.so._ZSt25__stl_throw_runtime_errorPKc
.got 190/349 addr:41764d84 file-mem:1f738-40109640 __aeabi_uidiv->libc.so.__udivsi3
.got 228/349 addr:41764e1c file-mem:1f738-7549c691 read->libbaiduprotect.so.unknown
.got 230/349 addr:41764e24 file-mem:1f738-71c17101 dlsym->libsechook.so._ZNK7android12SortedVectorIP6soinfoE8do_splatEPvPKvj
.got 231/349 addr:41764e28 file-mem:1f738-71c17421 dlopen->libsechook.so._ZNK7android12SortedVectorIP6soinfoE10do_compareEPKvS5_
.got 232/349 addr:41764e2c file-mem:1f738-400b4dad dlerror->linker._start
.got 292/349 addr:41764f1c file-mem:1f738-71c16f05 socket->libsechook.so.__socket
.got 334/349 addr:41764fc4 file-mem:1f738-4176ee11 _ZN4MaAcC1EiPKtib->libqc-opt.so._ZN4MaAcC2EiPKtib
.got 338/349 addr:41764fd4 file-mem:1f738-4176ee61 _ZN4MaAcD1Ev->libqc-opt.so._ZN4MaAcD2Ev
// Check inline hook
[Xiaomi MI 4LTE::com.baidu.wallet]-> checkConsistency("libdvm.so", 2)
check .text
.text addr:_Z17dvmDbgIsInterfacey+7 file-mem:14-df
may be hook
.text addr:_Z18dvmDbgGetClassListPjPPy+0 file-mem:4b-f8
may be hook
.text addr:_Z18dvmDbgGetClassListPjPPy+1 file-mem:15-0
may be hook
.text addr:_Z18dvmDbgGetClassListPjPPy+2 file-mem:4a-f0
may be hook
.text addr:_Z18dvmDbgGetClassListPjPPy+3 file-mem:7b-1
may be hook
.text addr:_Z18dvmDbgGetClassListPjPPy+4 file-mem:44-73
may be hook
.text addr:_Z18dvmDbgGetClassListPjPPy+5 file-mem:73-7f
may be hook
.text addr:_Z18dvmDbgGetClassListPjPPy+6 file-mem:b5-7f
may be hook
// Dump elf
[Xiaomi MI 4LTE::com.baidu.wallet]-> dumpModule("libbaiduprotect.so")
write /sdcard/libbaiduprotect.so file->mem 2bf0->75492bf0 size:45e98
*/
var O_RDONLY = 0;
var O_WRONLY = 1;
var O_RDWR = 2;
var O_APPEND = 1024;
var O_LARGEFILE = 32768;
var O_CREAT = 64;
var S_IWUSR = 128;
var S_IRWXU = 448;
var S_IRUSR = 256;
var SEEK_SET = 0;
var SEEK_CUR = 1;
var SEEK_END = 2;
function allocStr(str) {
return Memory.allocUtf8String(str);
}
function getStr(addr) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.readUtf8String(addr);
}
function putStr(addr, str) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.writeUtf8String(addr, str);
}
function getByteArr(addr, l) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.readByteArray(addr, l);
}
function getU8(addr) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.readU8(addr);
}
function putU8(addr, n) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.writeU8(addr, n);
}
function getU16(addr) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.readU16(addr);
}
function putU16(addr, n) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.writeU16(addr, n);
}
function getU32(addr) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.readU32(addr);
}
function putU32(addr, n) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.writeU32(addr, n);
}
function getU64(addr) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.readU64(addr);
}
function putU64(addr, n) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.writeU64(addr, n);
}
function getPt(addr) {
if (typeof addr == "number") {
addr = ptr(addr);
}
return Memory.readPointer(addr);
}
function putPt(addr, n) {
if (typeof addr == "number") {
addr = ptr(addr);
}
if (typeof n == "number") {
n = ptr(n);
}
return Memory.writePointer(addr, n);
}
function getExportFunction(type, name, ret, args) {
var nptr;
nptr = Module.findExportByName(null, name);
if (nptr === null) {
console.log("cannot find " + name);
return null;
} else {
if (type === "f") {
var funclet = new NativeFunction(nptr, ret, args);
if (typeof funclet === "undefined") {
console.log("parse error " + name);
return null;
}
return funclet;
} else if (type === "d") {
var datalet = Memory.readPointer(nptr);
if (typeof datalet === "undefined") {
console.log("parse error " + name);
return null;
}
return datalet;
}
}
}
function dumpMemory(addr, length) {
console.log(hexdump(Memory.readByteArray(addr, length), {
offset: 0,
length: length,
header: true,
ansi: true
}));
}
wrapper_open = getExportFunction("f", "open", "int", ["pointer", "int", "int"]);
read = getExportFunction("f", "read", "int", ["int", "pointer", "int"]);
write = getExportFunction("f", "write", "int", ["int", "pointer", "int"]);
lseek = getExportFunction("f", "lseek", "int", ["int", "int", "int"]);
wrapper_errno = getExportFunction("f", "__errno", "pointer", []);
close = getExportFunction("f", "close", "int", ["int"]);
dladdr = getExportFunction("f", "dladdr", "int", ["pointer", "pointer"]);
wrapper_sscanf = getExportFunction("f", "sscanf", "int", ["pointer", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer"]);
getpid = getExportFunction("f", "getpid", "int", []);
wrapper_popen = getExportFunction("f", "popen", "pointer", ["pointer", "pointer"]);
pclose = getExportFunction("f", "pclose", "int", ["pointer"]);
fgets = getExportFunction("f", "fgets", "pointer", ["pointer", "int", "pointer"]);
function errno() {
return getU32(wrapper_errno());
}
function popen(command, type) {
if (typeof command == "string") {
command = allocStr(command);
}
if (typeof type == "string") {
type = allocStr(type);
}
return wrapper_popen(command, type);
}
function getCommandOutput(cmd) {
var fp = popen(cmd, "r");
if (fp.isNull()) {
return null;
}
var output = "";
var buffer = malloc(1024);
while (fgets(buffer, 1024, fp) > 0) {
output += getStr(buffer);
}
pclose(fp);
return output;
}
function getProcessName() {
var fd = open("/proc/" + getpid() + "/cmdline", O_RDONLY, 0);
if (fd == -1) {
return "unknown";
}
var buffer = malloc(32);
read(fd, buffer, 32);
close(fd);
return getStr(buffer);
}
function open(pathname, flags, mode) {
if (typeof pathname == "string") {
pathname = allocStr(pathname);
}
return wrapper_open(pathname, flags, mode);
}
function getFileSize(fd) {
return lseek(fd, 0, SEEK_END);
}
function malloc(size) {
return Memory.alloc(size);
}
function memcpy(dst, src, n) {
return Memory.copy(dst, src, n);
}
function sscanf(buffer, format, np1, np2, np3, np4, np5, np6, np7, np8, np9, np10, np11) {
if (typeof format == "string") {
format = allocStr(format);
}
return wrapper_sscanf(buffer, format, np1, np2, np3, np4, np5, np6, np7, np8, np9, np10, np11);
}
function getSymbol(addr) {
if (addr == 0) {
return new Object();
}
var dlinfo = malloc(32);
var npaddr = ptr(addr);
putU64(dlinfo.add(0), 0);
putU64(dlinfo.add(8), 0);
putU64(dlinfo.add(16), 0);
putU64(dlinfo.add(24), 0);
dladdr(npaddr, dlinfo);
var sym = new Object();
if (Process.pointerSize == 4) {
libnameptr = getPt(dlinfo.add(0));
if (libnameptr.isNull()) {
sym.libname = "unknown";
} else {
sym.libname = getStr(libnameptr);
}
funcnameptr = getPt(dlinfo.add(8));
if (funcnameptr.isNull()) {
sym.funcname = "unknown";
} else {
sym.funcname = getStr(funcnameptr);
}
sym.libbase = getU32(dlinfo.add(4));
sym.funcoff = npaddr.sub(getPt(dlinfo.add(12)));
} else {
libnameptr = getPt(dlinfo.add(0));
if (libnameptr.isNull()) {
sym.libname = "unknown";
} else {
sym.libname = getStr(libnameptr);
}
funcnameptr = getPt(dlinfo.add(16));
if (funcnameptr.isNull()) {
sym.funcname = "unknown";
} else {
sym.funcname = getStr(funcnameptr);
}
sym.libbase = getU64(dlinfo.add(8));
sym.funcoff = npaddr.sub(getPt(dlinfo.add(24)));
}
if (sym.libname == "unknown" || sym.funcname == "unknown") {
for (var i = global_symbols.length - 1; i >= 0; i--) {
if (addr >= global_symbols[i].address) {
sym.libname = global_symbols[i].path;
sym.funcname = global_symbols[i].name;
sym.funcoff = addr - global_symbols[i].address;
break;
}
}
}
return sym;
}
function readSmallFile(filepath) {
var fd = open(filepath, O_RDONLY, 0);
if (fd == -1) {
return null;
}
var buffersize = 0x1000;
var buffer = malloc(buffersize);
lseek(fd, 0, SEEK_SET);
var output = "";
while (read(fd, buffer, buffersize) != 0) {
output += getStr(buffer);
}
close(fd);
return output;
}
function getAllModules() { // Some modules may hide themselves in 'solist', so we use maps instead
var modulelines = readSmallFile("/proc/self/maps").split("\n");
var modules = new Array();
var buffer = malloc(512);
for (var i = 0; i < modulelines.length; i++) {
putStr(buffer.add(256), modulelines[i]);
putU64(buffer.add(0), 0); // begin address
putU64(buffer.add(8), 0); // end address
putU64(buffer.add(16), 0); // permission
putU64(buffer.add(24), 0); // pgoff
putU64(buffer.add(32), 0); // major
putU64(buffer.add(40), 0); // minor
putU64(buffer.add(48), 0); // ino
putU64(buffer.add(56), 0); // path
sscanf(buffer.add(256), "%lx-%lx %c%c%c%c %llx %x:%x %lu %s", buffer.add(0), buffer.add(8), buffer.add(16), buffer.add(17), buffer.add(18), buffer.add(19), buffer.add(24), buffer.add(32), buffer.add(40), buffer.add(48), buffer.add(56));
var vmmin = getU64(buffer.add(0));
var vmmax = getU64(buffer.add(8));
var path = getStr(buffer.add(56));
if (path[0] != "/") {
continue;
}
// Check exist
var exist = false;
for (var j = 0; j < modules.length; j++) {
if (modules[j].path == path) {
if (modules[j].vmmin > vmmin) {
modules[j].vmmin = vmmin;
}
if (modules[j].vmmax < vmmax) {
modules[j].vmmax = vmmax;
}
exist = true;
break;
}
}
if (!exist) {
var module = new Object();
module.vmmin = vmmin;
module.vmmax = vmmax;
module.path = path;
modules.push(module);
}
}
return modules;
}
// Export function: get all loaded module info
function checkAllModules() {
if (modules == null) {
modules = getAllModules();
}
for (var i = 0; i < modules.length; i++) {
console.log("start:" + modules[i].vmmin.toString(16) + " end:" + modules[i].vmmax.toString(16) + " path:" + modules[i].path);
}
}
function getModuleInfo(name) {
if (modules == null) {
modules = getAllModules();
}
for (var i = 0; i < modules.length; i++) {
if (modules[i].path.indexOf(name) != -1) {
console.log(i + " start:" + modules[i].vmmin.toString(16) + " end:" + modules[i].vmmax.toString(16) + " path:" + modules[i].path);
}
}
}
function getElfData(module) {
if ("sections" in module) {
return true;
}
var fd = open(module.path, O_RDONLY, 0);
if (fd == -1) {
return false;
}
// Read elf header
var size_of_Elf32_Ehdr = 52;
var off_of_Elf32_Ehdr_phoff = 28; // 4
var off_of_Elf32_Ehdr_shoff = 32; // 4
var off_of_Elf32_Ehdr_phentsize = 42; // 2
var off_of_Elf32_Ehdr_phnum = 44; // 2
var off_of_Elf32_Ehdr_shentsize = 46; // 2
var off_of_Elf32_Ehdr_shnum = 48; // 2
var off_of_Elf32_Ehdr_shstrndx = 50; // 2
var size_of_Elf64_Ehdr = 64;
var off_of_Elf64_Ehdr_phoff = 32; // 8
var off_of_Elf64_Ehdr_shoff = 40; // 8
var off_of_Elf64_Ehdr_phentsize = 54; // 2
var off_of_Elf64_Ehdr_phnum = 56; // 2
var off_of_Elf64_Ehdr_shentsize = 58; // 2
var off_of_Elf64_Ehdr_shnum = 60; // 2
var off_of_Elf64_Ehdr_shstrndx = 62; // 2
// Parse Ehdr
var ehdr = malloc(64);
lseek(fd, 0, SEEK_SET);
read(fd, ehdr, 64);
var is32bit = getU8(ehdr.add(4)) != 2; // 1:32 2:64
if (is32bit) {
var phoff = getU32(ehdr.add(off_of_Elf32_Ehdr_phoff));
var shoff = getU32(ehdr.add(off_of_Elf32_Ehdr_shoff));
var phentsize = getU16(ehdr.add(off_of_Elf32_Ehdr_phentsize));
var phnum = getU16(ehdr.add(off_of_Elf32_Ehdr_phnum));
var shentsize = getU16(ehdr.add(off_of_Elf32_Ehdr_shentsize));
var shnum = getU16(ehdr.add(off_of_Elf32_Ehdr_shnum));
var shstrndx = getU16(ehdr.add(off_of_Elf32_Ehdr_shstrndx));
var off_of_Elf_Shdr_shname = 0; // 4
var off_of_Elf_Shdr_shaddr = 12; // 4
var off_of_Elf_Shdr_shoffset = 16; // 4
var off_of_Elf_Shdr_shsize = 20; // 4
} else {
var phoff = getU64(ehdr.add(off_of_Elf64_Ehdr_phoff));
var shoff = getU64(ehdr.add(off_of_Elf64_Ehdr_shoff));
var phentsize = getU16(ehdr.add(off_of_Elf64_Ehdr_phentsize));
var phnum = getU16(ehdr.add(off_of_Elf64_Ehdr_phnum));
var shentsize = getU16(ehdr.add(off_of_Elf64_Ehdr_shentsize));
var shnum = getU16(ehdr.add(off_of_Elf64_Ehdr_shnum));
var shstrndx = getU16(ehdr.add(off_of_Elf64_Ehdr_shstrndx));
var off_of_Elf_Shdr_shname = 0; // 4
var off_of_Elf_Shdr_shaddr = 16; // 8
var off_of_Elf_Shdr_shoffset = 24; // 8
var off_of_Elf_Shdr_shsize = 28; // 8
}
// Parse Shdr
var shdrs = malloc(shentsize * shnum);
lseek(fd, shoff, SEEK_SET);
read(fd, shdrs, shentsize * shnum);
if (is32bit) {
shstr_offset = getU32(shdrs.add(shentsize * shstrndx + off_of_Elf_Shdr_shoffset));
shstr_size = getU32(shdrs.add(shentsize * shstrndx + off_of_Elf_Shdr_shsize));
} else {
shstr_offset = getU64(shdrs.add(shentsize * shstrndx + off_of_Elf_Shdr_shoffset));
shstr_size = getU64(shdrs.add(shentsize * shstrndx + off_of_Elf_Shdr_shsize));
}
var str_tbl = malloc(shstr_size);
lseek(fd, shstr_offset, SEEK_SET);
read(fd, str_tbl, shstr_size);
var sections = new Array();
for (var i = 0; i < shnum; i++) {
if (is32bit) {
var shname_off = getU32(shdrs.add(i * shentsize + off_of_Elf_Shdr_shname));
var shname = getStr(str_tbl.add(shname_off));
var shaddr = getU32(shdrs.add(i * shentsize + off_of_Elf_Shdr_shaddr));
var shoffset = getU32(shdrs.add(i * shentsize + off_of_Elf_Shdr_shoffset));
var shsize = getU32(shdrs.add(i * shentsize + off_of_Elf_Shdr_shsize));
} else {
var shname_off = getU32(shdrs.add(i * shentsize + off_of_Elf_Shdr_shname));
var shname = getStr(str_tbl.add(shname_off));
var shaddr = getU64(shdrs.add(i * shentsize + off_of_Elf_Shdr_shaddr));
var shoffset = getU64(shdrs.add(i * shentsize + off_of_Elf_Shdr_shoffset));
var shsize = getU64(shdrs.add(i * shentsize + off_of_Elf_Shdr_shsize));
}
if (shname == ".text" || shname == ".rodata" || shname == ".got" || shname == ".got.plt") {
// Check item
var section = new Object();
section.name = shname;
section.memaddr = shaddr + module.vmmin;
section.memoff = shaddr;
section.fileoff = shoffset;
section.size = shsize;
section.data = malloc(shsize);
lseek(fd, shoffset, SEEK_SET);
read(fd, section.data, shsize);
sections.push(section);
}
if (shname == ".dynsym" || shname == ".dynstr" || shname == ".rel.dyn" || shname == ".rel.plt") {
var section = new Object();
section.size = shsize;
section.memaddr = shaddr + module.vmmin;
section.memoff = shaddr;
section.fileoff = shoffset;
module[shname] = section;
}
}
if (Process.pointerSize == 4) {
var sym_2_str = [];
if ((".dynsym" in module) && (".dynstr" in module)) {
for (var i = 0; i < module[".dynsym"].size / 16; i++) {
sym_2_str.push(getStr(module[".dynstr"].memaddr + getU32(module[".dynsym"].memaddr + 16 * i)));
}
}
module.sym_2_str = sym_2_str;
var relmap = {};
if (".rel.dyn" in module) {
var shsize = module[".rel.dyn"].size;
var memaddr = module[".rel.dyn"].memaddr;
for (var j = 0; j < shsize / 8; j++) {
var key = getU32(memaddr + j * 8);
var val = getU32(memaddr + j * 8 + 4) >> 8;
if (key != 0 && val != 0) {
relmap[key] = val;
}
}
}
if (".rel.plt" in module) {
var shsize = module[".rel.plt"].size;
var memaddr = module[".rel.plt"].memaddr;
for (var j = 0; j < shsize / 8; j++) {
var key = getU32(memaddr + j * 8);
var val = getU32(memaddr + j * 8 + 4) >> 8;
if (key != 0 && val != 0) {
relmap[key] = val;
}
}
}
module.dyn_2_name = relmap;
}
module.sections = sections;
return true;
}
function compareMemory(module, mask) {
for (var i = 0; i < module.sections.length; i++) {
section = module.sections[i];
if (section.name == ".rodata" && (mask & 1) != 0) {
// Compare directly
console.log("check .rodata");
var filedata = new Uint8Array(getByteArr(section.data, section.size));
var memdata = new Uint8Array(getByteArr(ptr(section.memaddr), section.size));
for (var j = 0; j < section.size; j++) {
if (filedata[j] != memdata[j]) {
console.log(".rodata\taddr:" + (section.memaddr + j).toString(16) + " file-mem:" + filedata[j].toString(16) + "-" + memdata[j].toString(16));
}
}
} else if (section.name == ".text" && (mask & 2) != 0) {
// Compare and get symbol
console.log("check .text");
var filedata = new Uint8Array(getByteArr(section.data, section.size));
var memdata = new Uint8Array(getByteArr(ptr(section.memaddr), section.size));
for (var j = 0; j < section.size; j++) {
if (filedata[j] != memdata[j]) {
sym = getSymbol(section.memaddr + j);
console.log(".text\taddr:" + sym.funcname + "+" + sym.funcoff.toString(16) + " file-mem:" + filedata[j].toString(16) + "-" + memdata[j].toString(16));
if ((memdata[j] == 0x01 && memdata[j + 1] == 0x00 && memdata[j + 2] == 0x9f && memdata[j + 3] == 0xef) || (memdata[j] == 0xf0 && memdata[j + 1] == 0x01 && memdata[j + 2] == 0xf0 && memdata[j + 3] == 0xe7) || (memdata[j] == 0x01 && memdata[j + 1] == 0xde) || (memdata[j] == 0xf0 && memdata[j + 1] == 0xf7 && memdata[j + 2] == 0x00 && memdata[j + 3] == 0xa0) || (memdata[j] == 0x0d && memdata[j + 1] == 0x00 && memdata[j + 2] == 0x05 && memdata[j + 3] == 0x00) || (memdata[j] == 0x00 && memdata[j + 1] == 0x00 && memdata[j + 2] == 0x20 && memdata[j + 3] == 0xd4) || memdata[j] == 0xcc) {
console.log("software breakpoint detected!!!");
j = j + 4;
} else {
console.log("may be hook");
}
}
}
} else if (section.name == ".got" && (mask & 4) != 0) {
console.log("check .got");
if (Process.pointerSize == 4) {
var filedata = new Uint32Array(getByteArr(section.data, section.size));
var memdata = new Uint32Array(getByteArr(ptr(section.memaddr), section.size));
for (var j = 0; j < section.size / 4; j++) {
var F = filedata[j];
var M = memdata[j];
if (F + module.vmmin != M && F != M) {
var msym = getSymbol(M);
var fsym = module.sym_2_str[module.dyn_2_name[section.memoff + j * 4]];
if (msym.funcname != fsym) {
console.log(".got " + j + "/" + section.size / 4 + "\taddr:" + (section.memaddr + j * 4).toString(16) + " file-mem:" + F.toString(16) + "-" + M.toString(16) + " " + fsym + "->" + msym.libname + "." + msym.funcname + "+" + msym.funcoff);
}
}
}
} else {
var filedata = new Uint32Array(getByteArr(section.data, section.size));
var memdata = new Uint32Array(getByteArr(ptr(section.memaddr), section.size));
for (var j = 0; j < section.size / 8; j++) {
var F = filedata[j * 2] * 0x100000000 + filedata[j * 2 + 1];
var M = memdata[j * 2] * 0x100000000 + memdata[j * 2 + 1];
if (F + module.vmmin != M && F != M) {
var msym = getSymbol(M);
var fsym = module.sym_2_str[module.dyn_2_name[section.memoff + j * 4]];
if (msym.funcname != fsym) {
console.log(".got " + j + "/" + section.size / 8 + "\taddr:" + (section.memaddr + j * 8).toString(16) + " file-mem:" + F.toString(16) + "-" + M.toString(16) + " " + fsym + "->" + msym.libname + "." + msym.funcname + "+" + msym.funcoff);
}
}
}
}
} else if (section.name == ".got.plt" && (mask & 8) != 0) {
console.log("check .got.plt");
if (Process.pointerSize == 4) {
var filedata = new Uint32Array(getByteArr(section.data, section.size));
var memdata = new Uint32Array(getByteArr(ptr(section.memaddr), section.size));
for (var j = 3; j < section.size / 4; j++) { // First 3 is special
var F = filedata[j];
var M = memdata[j];
if (F + module.vmmin != M && F != M) {
var msym = getSymbol(M);
var fsym = module.sym_2_str[module.dyn_2_name[section.memoff + j * 4]];
if (msym.funcname != fsym) {
console.log(".got.plt " + j + "/" + section.size / 4 + "\taddr:" + (section.memaddr + j * 4).toString(16) + " file-mem:" + F.toString(16) + "-" + M.toString(16) + " " + fsym + "->" + msym.libname + "." + msym.funcname + "+" + msym.funcoff);
}
}
}
} else {
var filedata = new Uint32Array(getByteArr(section.data, section.size));
var memdata = new Uint32Array(getByteArr(ptr(section.memaddr), section.size));
for (var j = 0; j < section.size / 8; j++) {
var F = filedata[j * 2] * 0x100000000 + filedata[j * 2 + 1];
var M = memdata[j * 2] * 0x100000000 + memdata[j * 2 + 1];
if (F + module.vmmin != M && F != M) {
var msym = getSymbol(M);
var fsym = module.sym_2_str[module.dyn_2_name[section.memoff + j * 4]];
if (msym.funcname != fsym) {
console.log(".got " + j + "/" + section.size / 8 + "\taddr:" + (section.memaddr + j * 8).toString(16) + " file-mem:" + F.toString(16) + "-" + M.toString(16) + " " + fsym + "->" + msym.libname + "." + msym.funcname + "+" + msym.funcoff);
}
}
}
}
}
}
}
// Export function: check all loaded module consistence with file
/**
nfilter : null for all modules, "libc.so" for libc.so
mask : 0x1 for .rodata, 0x2 for .text, 0x4 for .got, 0x8 for .plt.got
*/
var global_symbols = new Array();
var modules = null;
function checkConsistency(nfilter, mask) {
if (modules == null) {
modules = getAllModules();
}
if (global_symbols.length == 0) {
for (var i = 0; i < modules.length; i++) {
// modules address/name/type
var tp = modules[i].path.split("/");
var path = tp[tp.length - 1];
var modsym = Module.enumerateExportsSync(path);
var modbase = new Object();
modbase.address = modules[i].vmmin;
modbase.name = "unknown";
modbase.type = "modbase";
modsym.push(modbase);
modsym.sort(function(v1, v2) {
return v1.address - v2.address;
});
for (var j = 0; j < modsym.length; j++) {
modsym[j].path = path;
}
global_symbols = global_symbols.concat(modsym);
}
}
for (var i = 0; i < modules.length; i++) {
if (nfilter == null || modules[i].path.indexOf(nfilter) != -1) {
if (getElfData(modules[i])) {
compareMemory(modules[i], mask);
}
}
}
}
function dumpModule(name) {
if (modules == null) {
modules = getAllModules();
}
var modindx = -1;
for (var i = 0; i < modules.length; i++) {
if (modules[i].path.indexOf(name) != -1) {
// Get file name
modindx = i;
break;
}
}
if (modindx != -1) {
var filepath = modules[modindx].path;
var tp = filepath.split("/");
var filename = tp[tp.length - 1];
var textindx = -1;
var sections = null;
if (getElfData(modules[modindx])) {
// Recover .text section
sections = modules[modindx].sections;
for (var j = 0; j < sections.length; j++) {
if (sections[j].name == ".text") {
textindx = j;
break;
}
}
}
var newpath = "/sdcard/" + filename;
getCommandOutput("cp " + filepath + " " + newpath);
var fmodule = open(newpath, O_WRONLY, 0);
if (textindx != -1 && fmodule != -1) {
console.log("write " + newpath + " file->mem " + sections[textindx].fileoff.toString(16) + "->" + sections[textindx].memaddr.toString(16) + " size:" + sections[textindx].size.toString(16));
lseek(fmodule, sections[textindx].fileoff, SEEK_SET);
write(fmodule, ptr(sections[textindx].memaddr), sections[textindx].size);
close(fmodule);
}
}
}