I found this Trojan-PSW.Win32.Tepfer.sika always exists in my computer. I tried to remove it, unfortunately I gained nothing. I have used different kinds of anti-virus programs, but none of them can help me remove it completely. My computer is getting slower and slower now; sometimes it comes to blue screens with no reason. Can somebody help me get rid of it?

Some Knowledge About This Trojan

Trojan-PSW.Win32.Tepfer.sika is a malicious Trojan can be spread from the Internet, people can be easily infected by it when they encounter to some unknown websites or softwares. This Trojan can bundle itself to other programs, so it can access to the innocent computer during the installation of those programs without your consent, but actually, it comes to your computer with your approval, and the only thing is that you don’t know those programs contain this Trojan. Comparing to other legal programs, this Trojan is small, but the damage it can make to the computer is beyond your imagination. Hackers can put this Trojan into some webpages, so during the visit, Trojan can invade computer as a cache file about those websites. Anti-virus programs can detect this Trojan successfully, but to remove it by those anti-virus softwares is not an easy thing. This Trojan has the same character that all Trojans have, that’s the reproduce ability. With this tricky trait, to kick off this Trojan completely from computer is a difficult thing for those people who are not computer savvy.

Once this Trojan-PSW.Win32.Tepfer.sika infiltrates into computer, the system registry can be corrupted automatically, and many key system files can be removed or broken. At the same time, many junk files can be saved from the Internet, those files can be hidden in your computer which can waste a large capacity of your hard drive, and they are not easy to be cleaned up. The result of these two symptoms can be serious, computer performance can be slower and slower, and finally it will come to a complete computer crash. What’s worse, this Trojan contains keylogger which can steal your personal information such as bank account, credit card and so on. And cyber criminals can use your private information for illegal activities. Also, there are some other bad things may happen to computer. First, you may get many redirects when you try to use your browser to do something; most of them are commercial advertisements to lure you to buy goods. Your browser setting may also be modified by this Trojan. This Trojan may display as a fake security tool in your computer and exaggerate that your computer is at risk. In order to remove all the threats, you need to purchase the program to help. Don’t be taken it; all it does is to cheat you to pay.

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.
-May 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-PSW.Win32.Tepfer.sika 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 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-PSW.Win32.Tepfer.sika can cause fatal damage to those computer which are infected by it. The system registry can be changed and many important system-related files can be corrupted, after these things, computer can suffer from many errors than before. By the help of this Trojan, many other garbage files can come to your computer without your notice. Great usage of CPU can be occupied by those unpleasant processes which makes the computer extremely slow or even freeze. Further more, your private information can be leaked out to the hacker who can access to your computer with this Trojan’s help. To avoid more lost to your computer and yourself, please do remember remove it as you detect it is in your computer.

Suggestion: To follow removal guide that mentioned above, a level of computer knowledge is needed. Still can’t get out of this Trojan-PSW.Win32.Tepfer.sika? Contact online experts for help now!

Published by Tony Shepherd & last updated on December 27, 2013 2:16 pm

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