Threat library

Threat Encyclopedia

Browse recent How To Fix Guide articles in this category, with practical notes for identifying, removing, and understanding related security issues.

Novoopt.exe Virus (Coin Miner Trojan) Removal

Novoopt.exe process is a Trojan Coin Miner that utilizes the infected computer's resources to mine electronic currency without your permission. It can be Monero,...

Matchpop.exe Virus (Coin Miner Trojan) Removal

Matchpop.exe process is a Trojan Coin Miner that uses the infected computer system's resources to mine digital currency without your consent. It can be...

Isminer.exe Virus (Coin Miner Trojan) Removal

Isminer.exe process is a Trojan Coin Miner that makes use of the contaminated computer's resources to mine digital currency without your authorization. It can...

Sihost.exe High CPU Usage on Windows 10/11

Sihost.exe is a vital Windows process that manages the Windows Shell experience, including the GUI, desktop icons, taskbar, Start menu, and file explorer. It...

Virus:Win64/Sirefef.B — Virus Removal Guide

If you see the message reporting that the Virus:Win64/Sirefef.B was identified on your PC, or in times when your computer system functions too slow...

Virus:Win32/Parite.B — Virus Removal Guide

If you see the message reporting that the Virus:Win32/Parite.B was identified on your Windows PC, or in times when your computer system functions also...

Trojan:Win32/Kovter.A!lnk — Virus Removal Guide

If you see the message reporting that the Trojan:Win32/Kovter.A!lnk was identified on your computer, or in times when your computer system works too slowly...

Misleading:Win32/Chekuem — Virus Removal Guide

If you see the message reporting that the Misleading:Win32/Chekuem was identified on your computer, or in times when your computer system works too slow...