You'll need to buy a good anti-virus tool.
Answer
What Is Trojan?A Trojan (or Trojan horse, Trojan virus) is a kind of malware which appears to perform a desirable function for the user but instead facilitates unauthorized access to the user's computer system. Trojan virus are designed to allow a hacker remote access to a target computer system. It is very dangerous for you that to have a Trojan installed on your system. Your PC will be attacked easier than before. Trojan provides others with approach to control your computer. Trojan virus not only slows down the computer performance but also collects your private information, deletes PC files maliciously, steals your passwords, modifies your system settings, and monitors your computer activity. If you don't remove Trojan hidden on your computer and keep running the risky system, your computer will get more and more unstable and someday the system would be crashed. How to remove Trojan easily?There are many a Trojan removal solutions available on the internet. Any one of them may probably help you remove Trojan virus. However, we are now talking about which removal solution is the best and most effective one. Nobody wants to waste much time to remove Trojan virus. The most common way to remove Trojan virus is to delete the program which contains Trojan. And you have to find out the program with problem firstly. It is really a time consuming method for you to remove Trojan virus. Therefore, you need a Trojan removal tool to help you clean your computer.You need to run these 3 essential programs to remove all the spyware on your computer.
If you do not have an internet security suit and only an anti virus
1. Run Malwarebytes Anti-Malware
2. Run a complete scan with free curing utility Dr.Web CureIt!
3. Run the anti spyware removal programs spybot or Superantispyware
Browsers
Use Mozilla firefox or the Google chrome browser for browsing unsafe websites
Install ThreatFire
ThreatFire, features innovative real-time behavioral protection technology that provides powerful standalone protection or the perfect complement to traditional signature-based antivirus programs offers unsurpassed protection against both known and unknown zero-day viruses, worms, trojans, rootkits, buffer overflows, spyware, adware and other malware.
Run an online virus scan like
* Trend Micro HouseCall * Kaspersky free online virus scanner * Windows Live OneCare safety scanner * BitDefender Online Scanner * ESET Online Antivirus Scanner * F-Secure Online Virus Scanner * avast! Online Scanner
update your software by running
Secunia Online Software Inspector
Install a good antivirus in your computer.
Keep your antivirus updated. If automatic updates are available, configure your antivirus to use them.
Keep your permanent antivirus protection enabled at all times.
I had a Trojan Backdoor, and I removed it with Malwarebytes' AntiMalware.
You can refer to Symantec website. http://securityresponse.symantec.com/avcenter/venc/data/backdoor.sdbot.html
You have the find the exact location and manually delete them.
all viruses get locked into a box do to your firewall and antivirus settings... you can check the settings on there to get rid of it
Contact AVG.
AVG found this virus in a newly downloaded program from PC Tools called "Spyware Doctor with AntiVirus"
Run this scanner: http://www.mwti.net/antivirus/free_utilities.asp Direct link: http://www.mwti.net/download/tools/mwav.exe
cycbot backdoor activity is classified as a malicious computer virus and it can pop up every 5 minutes. I can understand how that would be annoying. With the post ( .pcfixessupport.com/cycbot-backdoor-activity-remove-cycbot-backdoor-activity-completely/) , i think you can successfully get rid of cycbot backdoor activity.
Download The Cleaner 4.1 Professional here: http://www.moosoft.com/products/cleaner/download/ and it should sniff out all trojans and quarantine them. After that you need to go into the quarantine and delete them.
oh,I have this Trojan too,here is a guide to remove: http://www.xdelbox.com/how-to-get-rid-of-Trojan-keyloggerwin32fung/
I would suggest you remove Media Player 9.0 and reinstall Media Player 10. Removing WMP 9.0 and installing WMP 10.0 probably will not remove the back door CCT trojan. Anti-virus is far more likely to get rid of it.
http://www.ewido.net/en/?section=download Install and run it. Let it fix whatever it finds! Turn off System Restore. Turn off Remote Assistance.) It helps, believe me.