
Security News
TypeScript is Porting Its Compiler to Go for 10x Faster Builds
TypeScript is porting its compiler to Go, delivering 10x faster builds, lower memory usage, and improved editor performance for a smoother developer experience.
frida-stack
Advanced tools
Small frida module for ensuring you get the stack information you wanted.
Often when using Frida, I would run into issues with wanting specific stack traces. Then I realized I didn't have a specific context window, or the stack traces didn't contain the correct shared libraries in them. This resulted in me re-writing the same functions all the time.
In other instances, mostly when reverse engineering heavily obfuscated or packed code, I would have discovered functions or places in memory which had been created without any exports available. This would lead to questions like, what process/library owned this? Where am I inside those libraries?
To answer the above questions, I wrapped some of the standard Thread.Backtrace
functions
and added some scanning of the Process
memory ranges.
$ npm install frida-extended-stack
import { Stack } from 'frida-stack'
function hook_exit() {
const _exitPtr = Module.findExportByName('libc.so', '_exit');
if (_exitPtr) {
const _exit = new NativeFunction(_exitPtr, 'int', ['int']);
Interceptor.replace(
_exitPtr,
new NativeCallback(
function (status) {
console.log(`[+] _exit : ${status} from ${Stack.getModuleInfo(this.context.pc)}`);
console.log(Stack.native(this.context)
return _exit(status);
},
'int',
['int'],
),
);
}
}
Output:
[Pixel 4::com.example.package ]-> [+] _exit : 0 from 0x7713d25000 libexamplesharedlib.so:0x1aae8
0x7713d25000 libexamplesharedlib.so:0x1aae8
Now you have a library and the exact offset into the library for reversing.
Copyright 2020-2024 Tim 'diff' Strazzere <diff@protonmail.com>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
FAQs
Getting better stacks and backtraces in Frida
We found that frida-stack demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
TypeScript is porting its compiler to Go, delivering 10x faster builds, lower memory usage, and improved editor performance for a smoother developer experience.
Research
Security News
The Socket Research Team has discovered six new malicious npm packages linked to North Korea’s Lazarus Group, designed to steal credentials and deploy backdoors.
Security News
Socket CEO Feross Aboukhadijeh discusses the open web, open source security, and how Socket tackles software supply chain attacks on The Pair Program podcast.