Manual Removal of W32/SystemAntivirus.A Trojan

Manual Removal of W32/SystemAntivirus.A Trojan.

W32/SystemAntivirus.A is a trojan. The trojan will infect Windows systems.
The Trojan may be dropped by other malware or may be downloaded from remote website by other malware.
It may also be downloaded unknowingly by a user while visiting malicious Website.
This Trojan first appeared on October 11, 2008.
Other names of W32/SystemAntivirus.A Trojan:
This Trojan is also known as Win32/FakeSecSen, Mal/FakeAV-E, TROJ_FAKEAV.NN.

Damage Level : Unknown
Distribution Level: Unknown

Removal Tool for W32/SystemAntivirus.A
Rogue System Antivirus 2008 REMOVER 1.0
Download Malicious Software Removal Tool from the Microsoft Download Center

Trojan Worm Manual Removal Instructions
Recommend Removal from Safe Mode:
How to Start in Safe mode:
Restart your Computer, Press F8 Repeatedly, when your Screen turns on, Select Safe mode, press enter.

The Infected Files Can be Seen in these folders and names also Running in Tasks
End the Following Active Process Before Removal

• %Windows\System\lsasrv.dll
• %Program Files\SAV 
• %Program Files\SAV\sav.cpl [ Control Panel Entry ]
• %Program Files\SAV\sav.exe  [ End Process ]
• %Program Files\SAV\sav0.dat
• %Program Files\SAV\sav1.dat 
• %WINDOWS\system32\sav.cpl [ Control Panel Entry ]
  
• %Documents and Settings\User Name\Desktop\System Antivirus 2008.lnk
  • If you have any of these files in running process from task manger, end the process before removal.
  • Note: if task manager is disabled, Download the following file, Click to Download - Enable Registry.reg
  • Open it with Regedit.exe [%system32\regedit.exe], then it Confirms Add to registry Yes or No, Confirm Yes, then click Ok.
    

Unregister DLL Files Using Windows Command Prompt

• To open the Windows Command Prompt, go to Start > Run > type cmd and then click the "OK" button.
• Type "cd" in order to change the current directory,
• Press the "space" button, enter the full path to where you believe the System Antivirus 2008 DLL file is located press the "Enter" button on your keyboard.
• If you don't know where System Antivirus 2008 DLL file is located, use the "dir" command to display the directory's contents.
• To unregister "System Antivirus 2008" DLL file,
• Type in the exact directory path + "regsvr32 /u" + [DLL_NAME]
• (C:\Windows\System\ regsvr32 /u lsasrv.dll) and press the "Enter" button.
• A message will pop up that says you successfully unregistered the file.
  

Trojan Manual Removal From Registry

Click Start, Run,Type regedit,Click OK.

• Note: If the registry editor fails to open the threat may have modified the registry to prevent access to the registry editor.
  
  • Download and run this UnHookExec.inf, and then continue with the removal.
  • Save it to your Windows desktop. Do not run it at this time, download it only.
  • After booting into the Safe Mode or VGA Mode
  • Right-click the UnHookExec.inf file and click Install. [This is a small file. It does not display any notice or boxes when you run it.]
    

The Trojan modifies registry at the following locations to ensure its automatic execution at every system startup:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
[ Do Not Delete the Services Folder instead remove the System Antivirus Service Entry ]

HKEY_CLASSES_ROOT\.key
HKEY_CURRENT_USER\Software\AntiVirus
HKEY_CURRENT_USER\Software\SAV
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
"Antivirus"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
"Antivirus"

Search Registry For Virus File Names listed above to remove completely,
Edit Menu - Find, enter Keyword and remove all value that find in search.

Exit the Registry Editor,

Restart your Computer.

Recommended Removal Tools:

Kaspersky Antivirus or Internet Security (Shareware)
Spyware Doctor (Shareware)
AVG Antivirus (Freeware)

Killbox (Freeware)