Hello. I had a similar situation and I found a blog https://gridinsoft.com/blogs/trojanwin32-wacatac/ that helped me. After reading, I understood what and how. Signs of a Trojan infection include unusual system behavior, slow performance, or unfamiliar programs running. If you suspect an infection, disconnect from the internet and run a full antivirus scan immediately. Quarantine or remove any detected threats, and review system processes for unknown entries. To prevent future infections, regularly back up important data, avoid suspicious downloads, and stay cautious when opening email attachments or links.