- decrypt_images.c: try image_keys.json lookup first, fall back to
config.json single key when CT pattern not mapped (previously returned
-5 immediately in multi-key mode)
- find_image_key.c: cap ASCII context printf to remaining buffer length,
preventing out-of-bounds read near region end
Previous range [a-z0-9] was too broad, matching non-hex characters
g-z which wastes CPU on false candidates. WeChat image keys are
lowercase hex strings.
Quickstart step 4 referenced scan_keys.js which doesn't exist in the
repo. Replace with find_all_keys_macos.c (Method A) and note Frida as
Method B requiring user's own script. Also add config.json note for
step 5.
- Remove forward-to-backslash conversion in JSON keys — forward slashes
are native macOS paths and don't need JSON escaping (backslash paths
like \b would be misinterpreted as escape sequences by JSON parsers)
- Add size==0 guard after mach_vm_region to prevent infinite loop
- Zero out SQLite header offset 20 (reserved-space) after decryption,
otherwise SQLite miscalculates usable page size
- Add comment noting production code should verify HMAC on every page,
not just page 1
- glob() does not support ** recursive matching on macOS (POSIX).
Replace with nftw() + opendir to recursively walk db_storage/.
- Add overlap between memory chunks to catch x'...' patterns
spanning chunk boundaries.
Scans WeChat process memory for SQLCipher encryption keys using
Mach VM API. Outputs all_keys.json compatible with decrypt_db.py.
Build: cc -O2 -o find_all_keys_macos find_all_keys_macos.c -framework Foundation
Usage: sudo ./find_all_keys_macos [pid]
bbingz