reversemedium
Я работаю в криптовалюте (I work in cryptocurrency)
hackerlab
Task: Decrypt encrypted file and extract flag from decrypted binary. Solution: Reverse 4-stage encryption (XOR, ROL, block swap, modifier), then extract function sizes from ELF to build bitmap image with flip+rotate transformations.
$ ls tags/ techniques/
multi_stageelf_analysisxorcustom_encryptionrol_rorblock_swapvisual_steganographyfunction_size_encodingimage_transformationbinary_reversing
Custom encryption algorithm reverse engineeringXOR + ROL + block swap + modifier decryptionFunction size to bitmap conversionImage transformation (flip + rotate)
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