Computer viruses are harmful programs that can convey through various methods and usually using Internet connection and compromised files. Most computer viruses can be detected by security programs like Anti-virus and Anti-malware. However, there are still some that can conceal their presence by exploiting vulnerabilities on the operating system.

Remove Sysenter Hook Rootkit

Sysenter Hook Rootkit is deemed as very notorious malware that may attack every Windows computer system. This detection is from AVG antivirus and covers a wide variety of rootkit Trojan.

Remove BitGuard Malware

BitGuard is a potentially unwanted program that gets installed on the computer without user’s approval. This malware from Performersoft also loads BitGuard Toolbar into the browser through add-ons or plug-ins. Comes with its scope is to replace the home page with its own page and configure unknown search engine to be the default one.

How to remove Caribarena Malware

Caribarena malware is a ransomware that infects the operating system of targeted PC. Once cyber crooks successfully dropped the virus onto your computer, you may see the message on your full screen saying, “Your computer has been blocked.”

Remove Trojan:Win32/Crilock.A

Trojan:Win32/Crilock.A is a Trojan that encrypts files on the computer and demands payment for the private key in order to decrypt them. In most cases, security experts tagged this threat as Ransomware. It is a malicious program that locks the PC or its contents in order to gain profit from worrying victim.

“Warning! Critical update” (IE, Firefox, and Chrome fake update)

“Warning! Critical update” is served from Depending on visitor’s browser, the warning will appear convincing you to download an update. This fake update for Internet Explorer, Google Chrome, and Mozilla Firefox claims to make your Internet browsing safer. Here is the text you will see when you land on the said web site.

Remove CryptoLocker Virus

CryptoLocker is a virus, Trojan, or malware on one code that attempts to seek money from computer users. This kind or computer infection can be considered as ransomware. However, it will not lock the computer and demands for payment to obtain the unlock code.

“The Computer is Locked by Internet Service Provider” Ransomware

“The Computer is Locked by Internet Service Provider” is one malware from the class of ransomware. Cyber crook that made this scam pretend to be from authority, FBI in particular, to threaten computer users. They believe that doing this way is somehow easier to collect money from victims.