strings - print the sequences of printable characters in files
List all 17-printable-characters-long strings
# strings Level-0.exe | egrep ^\.{17}$
L3v3lZ340_is_D02e
virtual thunk to
hidden alias for
transaction_safe
std::basic_string
unsigned __int128
decltype(nullptr)
NSt6locale5facetE
St13__ios_failure
St13bad_exception
St13messages_base
St13runtime_error
St7codecvtIDiDuiE
St7codecvtIDsDuiE