I saw a hacker submitted a *.txt file in our OJS 3.1 site. Hacker email was firstname.lastname@example.org which hacked other sites (you can find his Email information in Google). I deleted the submission.This action done last week.
Today, I saw a new hacker (or previous! person), submitted a new docx file in our site. This file has some codes in its contexts. I deleted the submission.
I have a question. Is it possible hacker attached a virus/malware etc. to *.docx file and hack my computer or site?
Please help me. I don’t know many things about hackers.