|
For remove VBS_GEDZA.A virus,please clean/delete all VBS_GEDZA.A infected files and Delete/Modify any values VBS_GEDZA.A added to the registry as following:
VBS_GEDZA.A infected a majority of my zip files, my system folder and dropped a couple payloads (deleted Estigma.hta from my C: Drive). malware drops several copies of itself as the following files in the Windows system folder:
BACKUP.VBS FILE.VBS GEDZAC.VBS HTA.VBS ISRAFEL.VBS JS.VBS KERNEL32.WIN MOUSE_CONFIGURATOR.WIN TEMPLATE.HTM UPDATE.BIN WINMGD.WIN It also drops a copy of itself the file SATTERRA.JPG.VBS in the Windows Temp folder.
It then drops the following components in the Windows system folder:
REGSRV.EXE (detected as TROJ_KILLAV.BT) SENDI.EXE (detected as WORM_GEDZA.A) PKZIP.EXE FILEZIP.ZIP When an HTML file infected with VBS_GEDZA.A is executed, it continuously displays an ActiveX warning prompt window until the user finally chooses to enable ActiveX. With this procedure, the malware prods the current user to enable ActiveX execution.
It creates the following registry entries to enable it to run at every Windows startup:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows CurrentVersion\Run Kernel32="%System%\Kernel32.win"
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows CurrentVersion\Run Israfel="%System%\Israfel.vbs"
(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 95, 98 and ME, C:\WINNT\System32 on Windows NT and 2000, and C:\Windows\System32 on Windows XP.)
It then adds the following registry entries so that it can execute its dropped .WIN file:
HKEY_LOCAL_MACHINE\Software\CLASSES\.win "winfile"
HKEY_LOCAL_MACHINE\Software\CLASSES winfile\ScriptEngine "VBScript"
It modifies the following WIN.INI entry to trigger its automatic execution:
[Windows] run = %System%\mouse_configurator.win
It also modifies the following SYSTEM.INI entry to trigger its automatic execution:
[boot] shell = Explorer.exe %System%\winmgd.win
This malware disables the registry by performing the following:
Change the association of registry files by setting the key HKCR\regfile\shell\open to “GEDZAC” Set registry value HKCR\regfile\shell\open\command to “GEDZAC” Disable registry tools by setting the following registry policies: HKEY_CURRENT_USER\Software\Microsoft\ WindowsNT\CurrentVersion\Policies\System\ DisableRegistryTools = “1”
HKEY_CURRENT_USER\Software\Microsoft\ Windows\CurrentVersion\Policies\System\ DisableRegistryTools = “1”
HKEY_LOCAL_MACHINE\Software\Microsoft\ WindowsNT\CurrentVersion\Policies\System\ DisableRegistryTools = “1"
HKEY_LOCAL_MACHINE\Software\Microsoft\ Windows\CurrentVersion\Policies\System\ DisableRegistryTools = “1”
it modifies the following registry entries:
HKEY_CURRENT_USER\Identities\<Identity Code>\Software\Microsoft\ Outlook Express\5.0\Mail Wide Stationary Name = %System%\Template.htm
HKEY_CURRENT_USER\Identities\<Identity Code>\Software\Microsoft\ Outlook Express\5.0\Mail Compose Use Stationery = dword:00000001
HKEY_CURRENT_USER\Identities\<Identity Code>\Software\Microsoft\ Outlook Express\5.0\Mail Message Send HTML = dword:00000001
HKEY_CURRENT_USER\Identities\<Identity Code>\Software\Microsoft\ Outlook Express\5.0\Mail Stationary Name = %System%\Template.htm
HKEY_CURRENT_USER\Software\Microsoft\Windows NT\ CurrentVersion\Windows Messaging Subsystem\Profiles\ Microsoft Outlook Internet Settings\0a0d020000000000c000000000000046 001e0360 = Template
HKEY_CURRENT_USER\Software\Microsoft\ Windows Messaging Subsystem\Profiles\ Microsoft Outlook Internet Settings\0a0d020000000000c000000000000046 001e0360 = Template
HKEY_CURRENT_USER\Software\Microsoft\ Office\10.0\Common\MailSettings NewStationery = Template
HKEY_CURRENT_USER\Software\Microsoft\ Office\8.0\Outlook\Options\Mail EditorPreference = dword:00020000
HKEY_CURRENT_USER\Software\Microsoft\ Office\9.0\Outlook\Options\Mail EditorPreference = dword:00020000
HKEY_CURRENT_USER\Software\Microsoft\ Office\10.0\Outlook\Options\Mail EditorPreference = dword:00020000
It also creates the following registry entry:
HKEY_LOCAL_MACHINE\Software\GEDZAC LABS Israfel Parent = %Windows%\SYSTEM\hta.vbs
The following text strings can be found in the malware body:
Israfel Worm - GEDZAC LABS 2003
VBS/Israfel by MachineDramon/GEDZAC
No Other remove tool or remove process:
For successful remove VBS_GEDZA.A virus,you may also need do as following:
1. Temporarily Disable System Restore .
2. Update the virus definitions. Reboot computer in SafeMode;
3. Delete the IE temp files,some VBS_GEDZA.A temp file exisit there.
4.If you failed to remove VBS_GEDZA.A,please go to our remove help forum:http://help.antiviruses123.com
|