/usr/ is in libengine-pkcs11-openssl 0.1.8-3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/engines/
/usr/lib/ssl/
/usr/lib/ssl/engines/
/usr/lib/ssl/engines/engine_pkcs11.so
/usr/share/
/usr/share/doc-base/
/usr/share/doc-base/engine-pkcs11
/usr/share/doc/
/usr/share/doc/engine_pkcs11/
/usr/share/doc/engine_pkcs11/README
/usr/share/doc/engine_pkcs11/NEWS.gz
/usr/share/doc/libengine-pkcs11-openssl/
/usr/share/doc/libengine-pkcs11-openssl/html/
/usr/share/doc/libengine-pkcs11-openssl/html/wiki/
/usr/share/doc/libengine-pkcs11-openssl/html/wiki/index.html
/usr/share/doc/libengine-pkcs11-openssl/html/wiki/trac.css
/usr/share/doc/libengine-pkcs11-openssl/html/wiki/MailingLists.html
/usr/share/doc/libengine-pkcs11-openssl/html/wiki/AuthorsAndCredits.html
/usr/share/doc/libengine-pkcs11-openssl/html/wiki/PageTemplates.html
/usr/share/doc/libengine-pkcs11-openssl/html/wiki/SubversionRepository.html
/usr/share/doc/libengine-pkcs11-openssl/html/wiki/QuickStart.html
/usr/share/doc/libengine-pkcs11-openssl/copyright
/usr/share/doc/libengine-pkcs11-openssl/changelog.Debian.gz
/usr/lib/engines/engine_pkcs11.so