I know this Trojan.PolyCrypt.h can make damage to my computer, so I have tried everything that I can do to get it removed. But what I have done is totally in vain. My anti-virus program gives me a warning about this Trojan every time I boot up my computer. That’s really annoying. How can I remove this Trojan from my computer completely and permanently? Please advise.

Brief Introduction to This Trojan

Why can Trojan.PolyCrypt.h be so stubborn for anti-virus to handle? It is categorized as a Trojan horse virus that can be classified as one of the most difficult computer threats to deal with for auto removal tools. Trojan infection aims on computers with Windows operating systems. Once this Trojan takes effect on the infected computer, it can damage the whole computer system including the anti-virus that installed on it. It can weaken the security level of the infected computer to make it be compromised so that other computer viruses can sneak into the target computer to make more damage. People can hardly aware when and how this Trojan infiltrates their computers without their notice. Once their anti-virus programs detect this Trojan on the computers, which means this Trojan virus has already flooded on the infected computer.

Trojan.PolyCrypt.h can be distributed by cyber hackers from the Internet and this is a main way for it to invade innocent computers. As the Internet is a global social network, this Trojan can be spread to every corner around the world. Cyber criminals who design this Trojan can use the websites to restore it, they can upload this Trojan file to the servers of websites that they own or hacked, so when people come to visit the infected websites, this Trojan can be downloaded automatically which can bypass the security inspection as it is pretended as a cache file for PC to save. This Trojan can also be implanted in free programs that can be downloaded online as hackers can make changes to those programs and re-upload to the net to serve computer users. In addition, some people can be sent some spam E-mails from Hackers which contain this Trojan as a fake attachment, also, then titles and contents of the E-mails can be fake as well, the only one purpose for them is to lure people to open the fake attachment which actually is the executable file of the Trojan.

Trojan.PolyCrypt.h can make various damages to the infected computer as soon as it is saved on the target machines. Windows XP, Windows Vista, Windows 7 and 8 can be the hard-hit systems by this Trojan attack. It can mess up the whole system by corrupting the system files and making changes to the system settings. The performance of the infected computer can be slowed down as this Trojan can waste a large part of CPU usage. If this nasty infection can’t be removed in time, the infected machine can get black screen and blue screen of death frequently that can cause severe problems to the computer hardware.

Some Traits about This Trojan

-Can slow down the performance of the computer, or even blue screen.
-Can create many junk files which occupy a lot of space in hard drive
-Can download other malicious programs into computer, which make further damage.
-Your sensitive information can be stolen by hacker who can access to your computer with the help of this Trojan.
-Cay give you many redirects all the time no matter what you are doing.
-May pretend as an anti-virus program and cheat you that computer is in dangerous, and ask you to pay to remove the threats.

NOTE: If you find any of these symptoms on your computer, that proves your PC is under attack and seriously infected. If you are not a computer savvy, Please contact YooSecurity Online PC Experts to remove this Trojan.PolyCrypt.h for you.

Manual Removal Guide of Trojan (For Computer Literate)

There is a removal guide of Trojan provided here; however, expertise is required during the process of removal, please make sure you are capable to do it by yourself.

Step 1: Find Ctrl, Alt, and Delete these 3 keys and then press them together to open task manager to end the process related to this Trojan, the name of the process of it is random.

XP task manager

Step 2: Try to find Folder Options in Control Panel, select the View tab, and then tick Show hidden files and folders and non-tick Hide protected operating system files (Recommended) and then click OK.


Step 3: Try to find the files which relate to this Trojan, and delete them all.

Step 4: Click on Start button at the right lower corner, then click on Control Panel


Then you will come to the Control Panel windows, click on Add and Remove Programs


Then try to find the program which relates to this Trojan, highlight it and choose Remove, the program’s name is random.


Step 5: Click on Start button or press Win+R, then type regedit in the box to open Registry Editor, after that, try to find
C:\Users\profile name here\AppData\

Similar video guide to modify Windows registry:


Trojan.PolyCrypt.h is a Trojan horse infection with the dangerous traits. It can mess up the whole computer gradually if it can stay a long time on the infected machine with being deleted. With this Trojan’s help, other computer threats can come to the infected machine to make more damage. Also, cyber hackers can use it to steal privacy from the infected computer. That can make the situation even worse.

Suggestion: To follow removal guide that mentioned above, a level of computer knowledge is needed. Still can’t get out of Trojan.PolyCrypt.h? Contact online experts for help now!

Published by Tony Shepherd & last updated on September 22, 2014 9:03 am

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