/usr/lib/ is in libpoco-dev 1.8.0.1-1ubuntu4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/libPocoData.so
/usr/lib/libPocoDataMySQL.so
/usr/lib/libPocoDataODBC.so
/usr/lib/libPocoDataSQLite.so
/usr/lib/libPocoFoundation.so
/usr/lib/libPocoJSON.so
/usr/lib/libPocoMongoDB.so
/usr/lib/libPocoNet.so
/usr/lib/libPocoNetSSL.so
/usr/lib/libPocoRedis.so
/usr/lib/libPocoUtil.so
/usr/lib/libPocoXML.so
/usr/lib/libPocoZip.so
/usr/lib/cmake/
/usr/lib/cmake/Poco/
/usr/lib/cmake/Poco/PocoConfig.cmake
/usr/lib/cmake/Poco/PocoConfigVersion.cmake
/usr/lib/cmake/Poco/PocoCryptoConfig.cmake
/usr/lib/cmake/Poco/PocoCryptoConfigVersion.cmake
/usr/lib/cmake/Poco/PocoCryptoTargets-none.cmake
/usr/lib/cmake/Poco/PocoCryptoTargets.cmake
/usr/lib/cmake/Poco/PocoDataConfig.cmake
/usr/lib/cmake/Poco/PocoDataConfigVersion.cmake
/usr/lib/cmake/Poco/PocoDataMySQLConfig.cmake
/usr/lib/cmake/Poco/PocoDataMySQLConfigVersion.cmake
/usr/lib/cmake/Poco/PocoDataMySQLTargets-none.cmake
/usr/lib/cmake/Poco/PocoDataMySQLTargets.cmake
/usr/lib/cmake/Poco/PocoDataODBCConfig.cmake
/usr/lib/cmake/Poco/PocoDataODBCConfigVersion.cmake
/usr/lib/cmake/Poco/PocoDataODBCTargets-none.cmake
/usr/lib/cmake/Poco/PocoDataODBCTargets.cmake
/usr/lib/cmake/Poco/PocoDataSQLiteConfig.cmake
/usr/lib/cmake/Poco/PocoDataSQLiteConfigVersion.cmake
/usr/lib/cmake/Poco/PocoDataSQLiteTargets-none.cmake
/usr/lib/cmake/Poco/PocoDataSQLiteTargets.cmake
/usr/lib/cmake/Poco/PocoDataTargets-none.cmake
/usr/lib/cmake/Poco/PocoDataTargets.cmake
/usr/lib/cmake/Poco/PocoFoundationConfig.cmake
/usr/lib/cmake/Poco/PocoFoundationConfigVersion.cmake
/usr/lib/cmake/Poco/PocoFoundationTargets-none.cmake
/usr/lib/cmake/Poco/PocoFoundationTargets.cmake
/usr/lib/cmake/Poco/PocoJSONConfig.cmake
/usr/lib/cmake/Poco/PocoJSONConfigVersion.cmake
/usr/lib/cmake/Poco/PocoJSONTargets-none.cmake
/usr/lib/cmake/Poco/PocoJSONTargets.cmake
/usr/lib/cmake/Poco/PocoMongoDBConfig.cmake
/usr/lib/cmake/Poco/PocoMongoDBConfigVersion.cmake
/usr/lib/cmake/Poco/PocoMongoDBTargets-none.cmake
/usr/lib/cmake/Poco/PocoMongoDBTargets.cmake
/usr/lib/cmake/Poco/PocoNetConfig.cmake
/usr/lib/cmake/Poco/PocoNetConfigVersion.cmake
/usr/lib/cmake/Poco/PocoNetSSLConfig.cmake
/usr/lib/cmake/Poco/PocoNetSSLConfigVersion.cmake
/usr/lib/cmake/Poco/PocoNetSSLTargets-none.cmake
/usr/lib/cmake/Poco/PocoNetSSLTargets.cmake
/usr/lib/cmake/Poco/PocoNetTargets-none.cmake
/usr/lib/cmake/Poco/PocoNetTargets.cmake
/usr/lib/cmake/Poco/PocoRedisConfig.cmake
/usr/lib/cmake/Poco/PocoRedisConfigVersion.cmake
/usr/lib/cmake/Poco/PocoRedisTargets-none.cmake
/usr/lib/cmake/Poco/PocoRedisTargets.cmake
/usr/lib/cmake/Poco/PocoUtilConfig.cmake
/usr/lib/cmake/Poco/PocoUtilConfigVersion.cmake
/usr/lib/cmake/Poco/PocoUtilTargets-none.cmake
/usr/lib/cmake/Poco/PocoUtilTargets.cmake
/usr/lib/cmake/Poco/PocoXMLConfig.cmake
/usr/lib/cmake/Poco/PocoXMLConfigVersion.cmake
/usr/lib/cmake/Poco/PocoXMLTargets-none.cmake
/usr/lib/cmake/Poco/PocoXMLTargets.cmake
/usr/lib/cmake/Poco/PocoZipConfig.cmake
/usr/lib/cmake/Poco/PocoZipConfigVersion.cmake
/usr/lib/cmake/Poco/PocoZipTargets-none.cmake
/usr/lib/cmake/Poco/PocoZipTargets.cmake
/usr/lib/libPocoCrypto.so