UF2 (Microsoft Update Format 2) is a file format used by Microsoft to distribute updates for various software products. While UF2 files are widely used, there is limited publicly available information on their internal structure and content. This paper presents UF2 Decompiler, a tool designed to reverse-engineer UF2 files and extract their contents. We describe the UF2 file format, the design and implementation of the UF2 Decompiler, and its capabilities.
class UF2File: def __init__(self, file_path): self.file_path = file_path self.header = None self.payload = None self.metadata = None self.digital_signature = None uf2 decompiler
# Read UF2 file payload payload_offset = header_struct[2] f.seek(payload_offset) self.payload = f.read() UF2 (Microsoft Update Format 2) is a file
Microsoft's UF2 file format is used to distribute updates for various software products, including Windows, Office, and Visual Studio. UF2 files are essentially container files that hold update payloads, metadata, and digital signatures. While UF2 files are widely used, their internal structure and content are not well understood, making it challenging for researchers and developers to analyze and work with these files. We describe the UF2 file format, the design
import struct import hashlib
# Usage uf2_file = UF2File('example.uf2') uf2_file.parse() print(uf2_file.header) print(uf2_file.payload) print(uf2_file.metadata) print(uf2_file.digital_signature)