Skip to content
Products
Junior Mobile Security Engineer
Able to interpret data exchanges in unencrypted apps and gain limited proficiency in common programming languages.
View Pricing
Intermediate Mobile Analyst
Proficient in advanced tool utilization, capable of bypassing anti-debugging protections and developing custom scripts via tool APIs to enhance analytical efficiency.
Research Tiers
Junior VS Intermediate Analyst Comparison
Advanced Security Researcher
Capable of enhancing core modules in open-source reversing tools and implementing kernel-level bypasses for advanced verification mechanisms.
View Advanced Analyst
Mobile Reverse Engineering Environment
Reverse analysis tool system customized based on Android source code， Implementation principle， Easy to use！
Explore Thematic Courses
NullFlag mobile App
Pricing
Specialties & Utilities
Featured Topics
Native Hook
Fix the structure and function table of C++
Kernel Hook
Develop based on the kernel hook framework.
Memory CRC
Memory checksum verification bypass and anti-cracking
IDA Pro Plugins
Developing native or Python plugins using the IDA API
Frida Stalker
Trace the execution flow of function assembly instructions
eBPF Development
Kernel-level low-layer monitoring
All NullFlag Specialties
Reverse Engineering Toolkit
gojue eCapture
capture SSL/TLS text content without a CA.
stackplz Plus
eBPF-based stack tracing tool on android.
FRIDA-DEXDump
A frida tool to find and dump dex in memory.
deReferencing plugin
IDA plugin implements new registers and stack views.
All intergrations
BUNDLES
Hex-Ray Usage
we’ll explore the essentials of IDA capabilities to kickstart your journey and disassemble your first binary file
See User Guide
MORE
Hex-Ray Release Notes
C++ SDK
IDAPython SDK
Resources
NullFlag Academy
Videos, books, and resources to help you master tips.
Blog
Blog articles with the latest news and tips.
Knowledge Base
A support network to help you make the most to Base.
Frida Release Notes
You can promptly receive updates on our latest news.
Get Help
There is include our all help documents , you can find you needed content by searching.
Professional Service
Problem Assistance and Tutoring Services
If you encounter difficult issues, you can submit your questions to us. We will respond within a guaranteed timeframe .
Other Resources
Join Our Community
Become a member of our online communication group to receive instant notifications and get timely solutions to your questions.
Join us on Discord!
Instructor
Account
Courses
Log In / Registration
about
blog
contact
Creamy pesto & kale pasta
Products
Native Hook
Kernel Hook
Memory CRC
IDA Pro Plugins
Frida Stalker
eBPF Development
gojue eCapture
stackplz Plus
eBPF Development
Support
Contact Us
Documentation
Company
Privacy Policy
Terms and Conditions
Refund Policy
Our Partners
Hex Rays
Ole André Vadla Ravnås
skylot / jadx
Jeb Pro
Stay Connected
Subscribe to our newsletter
Email
*
Sign Up
YouTube
GitHub
Twitter
Copyright 2025 NullFlag LLC All Rights Reserved.
Scroll to top
Scroll to top
