How Dangerous is Trojan Win32/sirefef.ev?

Trojan Win32/sirefef.ev is a highly dangerous Trojan variant that comes from the big t Trojan:Win32/Sirefef family. The similar variants that are popular over Internet and bothering people are such as Trojan:Win32/Sirefef.AM, Trojan:Win32/Sirefef. AG, Trojan:Win32/Sirefef.S, Trojan:Win32/Sirefef.AH, Trojan:Win32/Sirefef.AB, Trojan:Win32/Sirefef.Y, Trojan:Win32/Sirefef.O, Trojan:Win32/Sirefef.W, etc. TrojanWin32/sirefef.ev can bring damage to computer system and data security. Infected computer may be disconnected from Internet and will shut down every few minutes, which stops you form removing the Trojan by installing some removal tool or spyware programs. What is horrible, TrojanWin32/sirefef.ev may come bundled with other malwares, Trojans, worms or bugs, which will definitely make the system more and more compromised. If the Trojan endeavors to access your system kernel and infect the MBR, you will lose access to the system. Besides, unauthorized remote access may be opened for attackers to upload and activates further malware on the system, thus leaving your system and data unprotected and risky. In a word, it is a huge threat that you are advised to remove it as soon as possible.

Trojan Win32/sirefef.ev is a Threatening Trojan horse by Impressions

  1. Trojan Win32/sirefef.ev is a dangerous Trojan
  2. Trojan Win32/sirefef.ev comes bundled with other malware
  3. Trojan Win32/sirefef.ev can pop up numerous annoying advertisements
  4. Trojan Win32/sirefef.ev may communicate with remote hacker and send out information
  5. Trojan Win32/sirefef.ev is able to drop additional virus
  6. Trojan Win32/sirefef.ev can seriously damage the compromised system
  7. Trojan Win32/sirefef.ev violates your privacy and steals confidential information


Possible sources to get infected with viruses

Computer viruses are really annoying and can sneak on your computer without any consent. The best way to avoid viruses is to keep away from the viruses sources and get an up to date antivirus and antispyware software. Though for some nasty viruses, anti-viruses may fail to pick it up and you have to turn to manual removal, at least you get a warming alert to tell that you are infected. Here are some possible sources.
1. P2P network. Since it is a network for people to share files, you may be infected when sharing some infected files.
2. Free files or programs download. Don’t download unknown “free” software. Free software for downloading is usually a lure used by hackers, which you may be infected with spyware, bugs, worms, or any other viruses.
3. Corrupted Websites.You can be infected with viruses while browsing websites that are planted with virus codes. Avoid opening unknown email attachments. It is greatly possible that some viruses are bundled with the attachments.
4. Strange files and spam links.Strange files or files from unreliable sources with .bat, .exe, .msi, .ocx or .vbs endings may contain Trojans.

How to Remove Trojan Win32/sirefef.ev Easily?

Soutions 1 : Remove Trojan Win32/sirefef.ev Manually

Solution 2 : Remove Trojan Win32/sirefef.ev Automatically by Spyhunter

Details for Solution 1 – Remove Trojan Win32/sirefef.ev Manually by Yourself

Step1. Press CTRL+ALT+DELETE to open the Windows Task Manager. Then stop all infected processes.

Step2. Click Start button and select Run. Type regedit into the box and click OK to proceed. Once the Registry Editor is open, search for the registry entries and selects Delete.

Step4. Search for files and delete them manually.

The associated files and registry entries of Trojan Win32.agent.adb that need to be removed are listed as follows:

%CommonAppData%\<random characters>
%CommonAppData%\<random characters>\<random characters>
%CommonAppData%\<random characters>\<random characters>.exe
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System "DisableRegedit" = 0
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System "DisableRegistryTools" = 0
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System "DisableTaskMgr" = 0
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "Inspector"
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Settings "net" = 2012-3-1_2
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Settings "UID" = "fneqtdmtpi"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ashCnsnt.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avxmonitor9x.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\fnrb32.exe

Read more how to delete Trojan Win32/sirefef.ev registry entries

Note: What if I tell you there is a quicker way to block Trojan Win32/sirefef.ev? Do you dare to give it a shot? Download and install Spyhunter! With the help of Spyhunter, Trojan Win32/sirefef.ev will be smashed in a minute and your computer will be protected from other sorts of malware like trojan, spyware and ransomware.

Details for Solution 2 – Remove Trojan Win32/sirefef.ev Automatically by Spyhunter

Step 1: click the link to download and install Spyhunter on your computer.

Step 2: click ” Yes, protect my homepage” to protect your browser.

Step 3: Click “Scan Now” to scan your computer to block Trojan Win32/sirefef.ev


Kill 2 birds with 1 stone! Download and Install Spyhunter to smash Trojan Win32/sirefef.ev and protect your computer at the same time. You wouldn’t regret your choice!

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