Unpacking and repacking electron apps
A practical guide to exploring, modifying, and understanding Electron apps by unpacking and repacking ASAR archives.
Reverse-Engineering
Digging into reMarkable internal
Reverse engineering analysis of Xochitl, reMarkable’s proprietary user interface. Exploration of the thumbnail generation system, discovery of undocumented APIs (/thumbnail and /search), and detailed analysis of the document rendering process using IDA Pro.
Reverse engineering a simple license check
Breaking down a macOS app’s licensing system - from watermark removal to key generation
RootsMagic license key analysis
Reverse engineering analysis of RootsMagic’s license validation system, revealing the custom Base32 encoding scheme, 60-bit data structure, and proprietary checksum algorithm used for offline license verification.
Mysterious UUID in Android Widevine Libraries
Reverse-engineering analysis of Android Widevine libraries revealing the unexpected presence of a historical FairPlay UUID (29701fe4-3cc7-4a34-8c5b-ae90c7439a47) alongside the official Widevine UUID.
Master PDF Editor patch analysis
Master PDF Editor patch analysis
Leech license patch analysis
Leech license patch analysis
Bypassing debugger detection
In this article, I will present a simple yet effective solution to bypass anti-debugging techniques: modifying the Firefox source code itself.