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Danger level 7
Type: Trojans
Common infection symptoms:
  • Cant change my homepage
  • Connects to the internet without permission
  • Installs itself without permissions
  • Shows commercial adverts
  • Slow Computer
  • Slow internet connection
  • System crashes


Trojan.Zeroaccess!gen4 is one of the detections from the Trojan.Zeroaccess group of Trojan horses that first appeared in January, 2012 and has been prevalent ever since. It affects almost all operating systems, including Windows XP, Windows Vista, Windows NT, Windows Server 2003 and Windows 2000. The biggest number of infections has been detected in the United States, although Trojan.Zeroaccess!gen4 is also rather common in Canada, Brasil, India and Spain.

This Trojan is a cunning infection, because it uses rootkits to hide its presence and it can also open a backdoor in order for other malware to enter your system. It is of no surprise that Trojan.Zeroaccess!gen4 is known to be related to Backdoor.Tidserv. However, backdoors are not the only thing Trojan.Zeroaccess!gen4 can bring onto your system. It is also known to install fake security applications (rogues) that display bogus computer safety reports urging the user to purchase non-existent antivirus service.

Trojan.Zeroaccess!gen4 usually enters the system via infected websites, but it is also common for it to arrive via the so-called drive-by download. The Trojan is also able to update itself through p2p networks so you have be very careful about what you download and when.

Even though the initial objective of Trojan.Zeroaccess!gen4 is to make money via advertising that is called click fraud, the Trojan is also no stranger to connecting to its command and control server in order to allow a hacker to attack your system remotely. Eventually, Trojan.Zeroaccess!gen4 might even be responsible for your computer becoming a part of a wide botnet.

Whatever symptoms you might be experiencing, it is clear that you have to remove Trojan.Zeroaccess!gen4 right here and now. Due to the fact that it uses rootkits, it is hard to terminate it on your own, but if you use a program that kills all the regenerated rootkits, you will be able to delete Trojan.Zeroaccess!gen4 automatically. Get yourself a reliable computer safeguard application and make sure that Trojan.Zeroaccess!gen4 is gone for good.

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How to manually remove Trojan.Zeroaccess!gen4

Files associated with Trojan.Zeroaccess!gen4 infection:


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