Comment by weinzierl

Why is ELF a good example?

    7F 45 4C 46

- MUST be the very first N bytes in the file -> check

- MUST be at least four bytes long, eight is better -> check, but only four

- MUST include at least one byte with the high bit set -> nope

- MUST include a byte sequence that is invalid UTF-8 -> nope

- SHOULD include a zero byte -> nope

So, just 1.5 out of 5. Not good.

By the way, does anyone know the reason it starts with DEL (7F) specifically?