VBS_AUTORUN.FKJ

This worm adds certain registry entries to disable the Task Manager. This action prevents users from terminating the malware process, which can usually be done via the Task Manager. It disables Task Manager, Registry Editor, and Folder Options.

It drops an AUTORUN.INF file to automatically execute the copies it drops when a user accesses the drives of an affected system.

Installation

This worm drops the following copies of itself into the affected system:

• %WINDOWS%\Sgt.sys.vbs

Autostart Technique

This worm adds the following registry entries to enable its automatic execution at every system startup:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
SysCom = %WINDOWS%\Sgt.sys.vbs

Other System Modifications

This worm adds the following registry entries as part of its installation routine:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
VBSFile
DefaultIcon = shell32.dll,5

HKEY_CLASSES_ROOT\VBSFile
DefaultIcon = shell32.dll,5

HKEY_CURRENT_USER\Softeware\Microsoft\
Internet Explorer\Main
Window Title = Bertakwalah kepada Alloh dimanapun kau berada.

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
=

It adds the following registry entries to disable the Task Manager:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
system
DisableTaskMgr = 0

It creates the following registry entry(ies) to disable Task Manager, Registry Tools and Folder Options:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoFolderOptions = 0
NoFind = 0
NoRun = 0
NoFileAssociate = 0
DisableRegedit = 0
DisableCMD = 0

Propagation

This worm drops the following copies of itself in all physical and removable drives:

• Sgt.sys.vbs

It drops an AUTORUN.INF file to automatically execute the copies it drops when a user accesses the drives of an affected system.

The said .INF file contains the following strings:

[autorun]
shellexecute=wscript.exe Sgt.sys.vbs