SYSENTER hook is classified as an infamous Trojan infection that sneaks into your computer by utilizing flaws in your firewall and other vulnerabilities in your security system. It is detected by AVG antivirus and covers a wide variety of rootkit Trojan. However, the AVG antivirus can’t remove it because the entry and installation of SYSENTER hook is concealed.
As a nasty Trojan malware, it injects a code to legitimate windows process to conceal itself and prevent itself from being detected or removed by all kinds of antivirus programs. It distributes by spam email, bundled downloads, social engineering, fake online malware scanners and so on. It starts its malicious activities by creating a backdoor in your computer which allows a remote attacker to gain control on the compromised computer. The most noticeable symptom on the presence of this Trojan is extreme reduction on performance of the computer.
Once the SYSENTER hook exists on your computer, it may take a long time at startup or shut down, even when you attempt to open a website, it keeps freezing. Moreover, it changes the default setting of the internet web browser of your PC and while surfing internet, this infection will redirect you to other links that are full of fake and malicious advertisements. Besides, this Trojan infection compromises with your system security and steals your confidential information and delivers to the remote hackers. So, we recommend you to remove SYSENTER hook immediately from your computer before it becomes too late.
Symptoms of SYSENTER hook threat
1. SYSENTER hook invades system without any permission.
2. SYSENTER hook will reset the internet connection and keeps warning computer users.
3. SYSENTER hook slows down your computer speed considerably. This includes opening program, shutting down your computer, and slowing down Internet.
4. SYSENTER hook pops up annoying advertisements while you surfing the internet.
5. SYSENTER hook will shut down your anti-virus and anti-spyware programs. This virus will also infect and corrupt your registry, making your computer totally bareness.
6. SYSENTER hook steals your privacy information and compromises your security.
SYSENTER hook removal guide
Solution A: Manual Removal Instruction
Step 1: Reboot the PC and keep pressing F8 key on the keyboard upon PC startup but before logging in. Hit the arrow keys to choose "Safe Mode with Networking" option, and then tap Enter key to enter Safe Mode with Networking.
Step 2: Kill malicious processes:
Step 3: Delete infected files:
%Documents and Settings%\[UserName]\Application Data\[random]
Step 4: Delete infected registry values:
Step 1: Download SpyHunter freely by clicking on the below button.
Step 3: After the installation is complete, open SpyHunter and click Scan Computer Now! to start scan your computer.
Step 4: When the scan is completed, you can see that all the threats including SYSENTER hook are detected successfully. Then click Fix Threats button to clean your computer.
Manual removal of SYSENTER hook is known as the most effective way. Anyway, it refers to key parts of computer system, and is recommended only for advanced users. If you don's have sufficient expertise on doing that, it is recommended to use the later removal suggestion so that SpyHunter can help you get rid of your problems directly and completely.