ScrapHacks/frida/frida_hook_read_trace.js
Daniel Seiller 8d92f25b8c Lots of Updates (expand for more):
- Started implementing new parser for chunked data
- Started documenting data formats
- Started dissector for network protocol
- Added AI-Graph renderer (converts .pth files to python data you can import into Blender)
- Added Script to convert savefile to JSON
- Added (old) parser for chunked data format
- Added basic parser for LFVF data section (Vertex Data)
- Added script to analyze and filter read trace generated with frida script
- Added various Frida scripts
2020-08-04 18:05:34 +02:00

174 lines
4.5 KiB
JavaScript

var pak_files = {}
var ftypes = {}
var record=false;
var current_block_id;
var filename;
var t0 = performance.now();
Interceptor.attach(ptr("0x5e3b50"), { //read_block_header
onEnter: function (args) {
filename = pak_files[this.context.ecx] || this.context.ecx;
current_block_id = args[0].readUtf8String();
},
onLeave: function(ret) {
return ret;
}
})
// Interceptor.attach(ptr("0x5e3c50"), { // read_block_id
// onEnter: function (args) {
// var filename=pak_files[this.context.ecx]||this.context.ecx;
// var id=args[1].readUtf8String();
// console.log("[+read_block("+filename+")]",id,args[1]);
// },
// // onLeave: function(ret) {
// // console.log("[-read_ini_block] Ret:",ret);
// // }
// })
Interceptor.attach(ptr("0x7B43B020"),{
onEnter: function(args) {
var info={};
info['this']=args[0];
info['Length']=args[1];
info['Usage']=args[2];
info['FVF']=args[3];
info['Pool']=args[4];
info['ppVertexBuffer']=args[4];
send({CreateVertexBuffer:info});
}
})
Interceptor.attach(ptr("0x5e3bb0"), { // read_stream_wrapper
onEnter: function (args) {
this.args = {};
this.args[0] = args[0];
this.args[1] = args[1];
this.timestamp = performance.now()-t0;
},
onLeave: function (ret) {
var data=Memory.readByteArray(this.args[0],this.args[1].toInt32());
var stack = Thread.backtrace(this.context,Backtracer.ACCURATE);
var obj={
filename,
timestamp: this.timestamp,
block_id: current_block_id,
stack
};
send(obj,data);
}
})
Interceptor.attach(ptr("0x5e3800"), { // fopen_from_pak
onEnter: function (args) {
this.filename = args[0].readUtf8String();
},
onLeave: function (ret) {
if (ret != 0) {
pak_files[ret] = this.filename;
}
}
})
// Interceptor.attach(ptr("0x5e3c50"), { // read_block_id
// onEnter: function (args) {
// console.log("[+read]",args[0],args[1]);
// },
// onLeave: function(ret) {
// console.log("[-read] Ret:",ret);
// }
// })
// Interceptor.attach(ptr("0x6665a0"), { // load_m3d_1
// onEnter: function (args) {
// console.log("[M3D_1]",args[0].readUtf8String());
// }
// })
// Interceptor.attach(ptr("0x666900"), { // load_m3d_2
// onEnter: function (args) {
// console.log("[M3D_2]",args[0].readUtf8String());
// }
// })
function dasm(addr, size) {
var size = size || 8;
var offset = 0;
var ret = [];
while (ret.length != size) {
var inst = Instruction.parse(ptr(addr).add(offset));
ret.push(("[" + inst.address + "] " + inst.mnemonic + " " + inst.opStr).trim());
offset += inst.size;
}
return ret;
}
function r(addr, options) {
var options = options || {}
var max_depth = options.max_depth || 4;
var num = options.num || 4;
var ret = {};
var vals = [
"S8",
"U8",
"S16",
"U16",
"S32",
"U32",
"Float",
"Double",
"Pointer",
"CString",
"Utf8String",
"Utf16String",
"AnsiString"
];
vals.forEach(function (k) {
try {
ret[k] = ptr(addr)['read' + k]()
} catch (e) {
ret[k] = undefined;
}
})
try {
ret["code"] = dasm(addr, 8);
} catch (e) {
ret["code"] = undefined;
}
if (max_depth > 1) {
var p = {};
var read_ptr = false;
for (var i = 0; i < num; ++i) {
if (ret["Pointer"] === undefined) {
continue;
}
p[i * Process.pointerSize] = r(ret["Pointer"].add(i * Process.pointerSize), {
max_depth: max_depth - 1,
num
});
read_ptr = true;
}
if (read_ptr) {
ret["p"] = p;
}
}
return ret;
}
// function test() {
// for (var p = 0; p < 4; ++p) {
// var player = ptr(0x7FE944).readPointer().add(0x288 + p * 4).readPointer();
// if (!player.isNull()) {
// console.log("Player " + (p+1) + ":", player);
// console.log(JSON.stringify(r(player),null,4));
// }
// }
// }