I think I just made a big mistake on my computer. I just click on a pop-up that interests me a lot. However, after that, a thing called Trojan.Cryptlock.J!gm had been detected by my anti-virus program. The security tool only quarantined it but can’t get rid of it for me. And now, every time I turn on my computer, I can get warned by the tool about this thing. How can I get this thing totally off from my computer? Please help!

Brief Introduction to This Trojan

Trojan.Cryptlock.J!gm is a product made by cyber hackers who want to get illegal benefits from innocent computer users. It comes from Trojan family which is a kind of computer infection that can infiltrate target computers secretly without being known by PC users. The size of this infection can be really small, which can make it be widely distributed on the Internet by cyber hackers. Usually, cyber hackers can implant this infection to those websites which are porn web pages and some unsafe downloading websites. Even some reputable websites can be hacked as well. Those crooks can edit the malicious scripts of this Trojan and upload the files of it to the hacked websites’ servers. In this case, computer users who go to the corrupted websites can be attacked by this infection right away, and they would have no idea about it.

In addition, this Trojan.Cryptlock.J!gm infection can be sent to the unsuspecting computer users via spam E-mails. Cyber hackers can falsify some fake E-mails with legit place and contents and send them randomly to computer users. People who receive the fake mails can be lured to open the attachment which is the executable file of this Trojan, once the corrupted attachment is opened, the Trojan can infiltrate the target computers immediately. What’s more, people can get this Trojan on their computers if they download something which has already been infected by this Trojan virus onto their machines.

As a Trojan infection, this Trojan.Cryptlock.J!gm can generate many unwanted problem at the backdoor during the use. Trojan infection usually doesn’t come alone. It can help many other Trojans and viruses to come once the infected computers have Internet connection. It can occupy a large percent of CPU usage, as a result, the infected machine can perform like a snail. PC users will take a long time to open programs and sometimes they can get not responding errors when they launch some software. What’s worse, some variations of this Trojan can contain a more dangerous virus, it is a kind of virus that can able to encrypt all the files saved on the infected machines. PC users will have to pay a large amount of money to decrypt the files. If not, the files can be decrypted forever as there is not a efficient way to recover them at present.

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.Cryptlock.J!gm 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.Cryptlock.J!gm is a dangerous Trojan infection with strong destructivity. It targets on Windows machines all over the world. Innocent computer users can get attacked by this Trojan if they are careless when go online. Some kinds of this Trojan can be able to encrypt the files on the infected machines and scam people to pay. It is necessary for every computer user who suffers from this Trojan to get it removed completely from computer before further damages and losses occur.

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

Published by Tony Shepherd & last updated on November 18, 2014 1:13 pm

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