If you're seeing unusual data in the Google Analytics account for your website, then there may be bots spamming your Analytics. Spam bots may show data from Russian, China, South America etc. Some spam bots can send fake traffic to your Analytics without ever visiting your website.
Since their visit is not technically recorded on the server log, we can not block them for you, however you can block them through your Google Analytics account. See the following guide on how to do so: