Skip to content
Null Flag
  • 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 ResearcherCapable of enhancing core modules in open-source reversing tools and implementing kernel-level bypasses for advanced verification mechanisms.
      • View Advanced Analyst
    • Mobile Reverse Engineering EnvironmentReverse 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 ServicesIf you encounter difficult issues, you can submit your questions to us. We will respond within a guaranteed timeframe .
      • Other Resources
    • Join Our CommunityBecome a member of our online communication group to receive instant notifications and get timely solutions to your questions.
      • Join us on Discord!
  • Instructor
  • sign in
    • My Profile
    • Courses
    • Log In / Registration
Null Flag
  • about
  • blog
  • contact

Dachshund

Long-bodied and playful, originally bred for hunting badgers.

Abyssinian Cat

Abyssinian Cat

The Abyssinian Cat is one of the oldest known breeds

Read More Abyssinian CatContinue

Maine Coon

Maine Coon

Maine Coons remain one of the most popular and cherished cat breeds worldwide.

Read More Maine CoonContinue

Products
  • Native Hook
  • Kernel Hook
  • Memory CRC
  • IDA Pro Plugins
  • Frida Stalker
  • eBPF Development
  • gojue eCapture
  • stackplz Plus
  • eBPF Development
Support
  • Contact Us
  • Nonprofit Program
  • Experts
  • 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
  • YouTube
  • GitHub
  • Twitter
Copyright 2025 NullFlag LLC All Rights Reserved.
Scroll to top