I’m using Microsoft security essentials and it keeps detecting a Trojan Horse called TrojanDownloader:Win32/Kuluoz.D. I am not sure where it comes from and what it can do on my computer. Is it dangerous? Will it steal my information? It seems MSE cannot get rid of it. As soon as I do that, it says the virus is removed but after a few minutes, the virus will come back again. What can I do?
TrojanDownloader:Win32/Kuluoz.D is a highly dangerous Trojan detected by Microsoft Security Essentials that usually sneaks into the vulnerable computers without any knowledge and runs in the background by seeking discovered vulnerability. When it is activated on your computer, it displays many unwanted results to damage your computer system. Just like this one, it is not only malicious, but also extremely annoying since this Trojan can change your computer settings, add silly active desktop icons and generate crazy pop-ups to bother PC users. It also can cause serious damage by deleting files and destroying information on your system. Similarly to other Trojan viruses, it is known to create a backdoor on your computer that gives malicious users access to your system, possibly allowing confidential or personal information to be compromised.
It must be a nightmare if computer has been infected with TrojanDownloader:Win32/Kuluoz.D virus. This virus can carry out significant troubles on the target machine. To be more specific, it can interrupt your web browsing activities aggressively by keep showing you unwanted pop-up ads or redirecting you to irrelevant web pages which you don’t want at all. Meanwhile, your computer will run noticeably slowly. It takes forever to launch a program or open a website on the browser. More worse, a Trojan Downloader is good at downloading and installing malicious software, including third-party malware and ransomware. If you don’t get rid of it instantly, cyber hackers may enable remote access to the infected system secretly with the help of this notorious Trojan horse in order to gather your vital financial information and other sensitive information for illegal tasks. Manual removal will become a better way to deal with this stubborn Trojan and save your computer in all aspects.
a. There will be lots of annoying pop-up ads and fake security alerts;
b. It will block your access to the Internet and redirect everything you do on your browser to malicious web pages;
c. It will reduce your PC performance and create many junk files to wreak chaos;
d. Antivirus programs on the computer will automatically be shut down;
e. It may come with additional viruses and malware to further damage your computer;
f. Your private and critical information may be captured by a remote host who will use them for Internet crimes;
From malicious drive-by-download scripts from corrupted porn and shareware / freeware websites.
Through spam email attachments, media downloads and social networks.
When clicking suspicious pop-ups or malicious links.
Open unknown email or download media files that contain the activation code of the virus.
Note: No matter how does the virus access your PC, users should know that there are no tools can remove this pesky Trojan automatically at this moment, it is suggested users not spend much time in downloading or paying any security software which claims can delete this stubborn virus. It is totally useless. To completely get rid of TrojanDownloader:Win32/Kuluoz.D, professional manual guide is needed.
Currently many computer users had the same experience that this virus couldn’t be removed by any anti-virus applications. So the manual approach is always required to combat this virus. And here is the step-by-step removal guide for all computer users.
1. End the malicious process from Task Manager.
Once TrojanDownloader:Win32/Kuluoz.D virus is installed, computer user may notice that CPU usage randomly jumps to 100 percent. At any time Windows always has many running processes. A process is an individual task that the computer runs. In general, the more processes, the more work the computer has to do and the slower it will run. If your system’s CPU spike is constant and remain at a constant 90-95%, users should check from Task Manager and see if there is a suspicious process occupying system resources and then end it immediately.
(The name of the virus process can be random.)
Press Ctrl+Shift+Esc to quickly bring up Task Manager Window：
2. Show hidden files and folders.
Open Folder Options by clicking the Start button, clicking Control Panel, clicking Appearance and Personalization, and then clicking Folder Options.
Click the View tab.
Under Advanced settings, click Show hidden files and folders, uncheck Hide protected operating system files (Recommended) and then click OK.
3. Open Registry entries. Find out the malicious files and entries and then delete all.
Attention: Always be sure to back up your PC before making any changes.
a. Press Windows key + R to open Run box. In the “Open” field, type “regedit” and click the “OK” button.
Then a Registry Editor window will pop up as the following picture shows:
b. Search malicious files and registry entries and then remove all of them:
%AllUsersProfile%\[random]
%AppData%\Roaming\Microsoft\Windows\Templates\[random]
%AllUsersProfile%\Application Data\.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\[random]
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Temp
TrojanDownloader:Win32/Kuluoz.D is a new Trojan detected by Microsoft Security Essentials which can be filled in your system as fast as you never imagine. When it is downloaded, your system must become extremely slow, and it gets stuck and frozen up frequently. Generally speaking, this Trojan mainly attacks Windows computer and it aims to download various malware to a compromised computer. It often infiltrates a computer through various software exploits. With the same ability like other Trojan viruses, it enables attackers to obtain full remote access and control over the targeted PC, and steals confidential information, such as online shopping and banking passwords, email credentials and network information from affected computer users. Don’t let it stay on your computer, otherwise both your computer and your privacy will be in a high risk.
Note: If you are not knowledgeable enough to be able to distinguish the location of this virus, or you are afraid of making mistake during the manual removal, please contact experts from Yoocare Online Tech Support for further help.
Published by on March 2, 2014 9:25 am, last updated on March 2, 2014 9:26 am
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