Remove Trojan:Win32/Sirefef.AH Manually, Get Rid of Trojan:Win32/Sirefef.AH Permanently

Trojan:Win32/Sirefef.AH is classified as nasty Trojan horse which is as repulsive as the previously released virus Trojan:Win32/Sirefef.AC. Designed by malicious cyber criminals, Trojan:Win32/Sirefef.AH can mess up the whole affecting system even make it unusable. There are many methods for its penetration onto the corrupted PC, such as social networks, doubtful websites, freeware, shareware, spam messages, etc. This action is usually without any of users’ approval or awareness. Be careful when surfing the internet or downloading something.

When installed inside a PC, Trojan:Win32/Sirefef.AH can run in the background and perform various malicious behaviors. On one hand, it has the ability to consume your system resource and clog your computer with useless processes. Thus it’s not surprised that the PC is running abnormally, slower and slower, without access to certain file or program. Sometimes, the computer will randomly crash or you will get annoying crash reports. On the other hand, Trojan:Win32/Sirefef.AH may embed malicious code to your browser and redirect your search results to unexpected ads website from which more dangerous malware can be brought to your computer. It’s really very pesky and drives you mad if you want to use the browser to search something useful.

Undoubtedly, Trojan:Win32/Sirefef.AH has the similar features as other trojans. It’s capable to record target users’ logins and passwords he or she usually enters, and then transmit this info to an attacker via a remote server, which poses a high risk to their privacy security. Trojan:Win32/Sirefef.AH uses rootkit technology to bypass installed removal tools or shut down firewall. Thus, although you have top antivirus program available, Trojan:Win32/Sirefef.AH virus still gets through easily. That’s why Microsoft security essentials always keeps popping up, showing you the virus but it will not delete it thoroughly. In such circumstance, there is still solution to get rid of the Trojan:Win32/Sirefef.AH virus - manual removal, which is the most recommended way, also the only effective way to remove the virus and give an all-around protection for the infected computer.

How to Remove Trojan:Win32/Sirefef.AH Virus Manually?
1). Before you take the action, you have better get in safe mode with networking.

2). Stop the associated processes of Trojan:Win32/Sirefef.AH:
wb.exe
system.exe
Windows.exe
WUDHost.exe
svchost.exe
win32rundll.exe

3). Delete the associated files of Trojan:Win32/Sirefef.AH:
C:\WINDOWS\system32\ random letters.exe
 %SYSTEMDRIVE%\*.*
C:\Documents and Settings\Lounge Lizard\My Documents\Downloads\7zip.exe (PUP.Adware.Installer) C:\Documents and Settings\Lounge Lizard\My Documents\Downloads\7Zip_Setup.exe (Adware.IBryte) C:\Documents and Settings\Default User\Start Menu\Programs\Startup\yxdyif.exe (Trojan.Agent)

 4). Get rid of the related registry entries of Trojan:Win32/Sirefef.AH:
HKCU\Software\Microsoft\Windows\CurrentVersion\run\random.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings: “ProxyServer” = :0 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win32/sirefef.ah

Manual removal of Trojan:Win32/Sirefef.AH is complex and risky task, as it refers to key parts of computer system, and is recommended only for advanced users. If you haven’t sufficient expertise on doing that, it's recommended to ask help from an online computer expert to manually remove it for you. That would make a hit.