TROJ_SIREFEF.VRX

To restart in Safe Mode:

• For Windows 2000 users

1. Restart your computer.
2. Press F8 when you see the Starting Windows bar at the bottom of the screen.
3. Choose the Safe Mode option from the Windows Advanced Options menu then press Enter.

• For Windows XP users

1. Restart your computer.
2. Press F8 after the Power-On Self Test (POST) routine is done. If the Windows Advanced Options menu does not appear, try restarting then pressing F8 several times when the POST screen appears.
3. Choose the Safe Mode option from the Windows Advanced Options menu then press Enter.

• For Windows Server 2003 users

1. Restart your computer.
2. Press F8 after Windows starts up. If the Windows Advanced Options menu does not appear, try restarting again and pressing F8 several times afterward.
3. On the Windows Advanced Option menu, use the arrow keys to select Safe Mode then press Enter.

To enable Registry Editor, Task Manager, and Folder options:

1. Open Notepad. To do this, click Start>Run, type Notepad in the text box provided, then press Enter.
2. Copy and paste the following script:
   On Error Resume Next Set shl = WScript.CreateObject("WScript.Shell") shl.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools" shl.RegDelete "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools" shl.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr" shl.RegDelete "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr" shl.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions" shl.RegDelete "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions"
3. Save this file as C:\RESTORE.VBS.
4. Click Start>Run again, type C:\RESTORE.VBS in the text box provided, then press Enter.
5. Click Yes at the prompt of the message box to execute the .VBS file.

To delete the registry key this malware/grayware created:

1. Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
2. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>services
3. Still in the left panel, locate and delete the key:
   .netbt
4. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>policies
5. Still in the left panel, locate and delete the key:
   system
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Security Center
7. Still in the left panel, locate and delete the key:
   Svc
8. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>Software>Classes>Interface
9. Still in the left panel, locate and delete the key:
   {63c86e33-ae08-09e4-4ace-e515e7d0491a}
10. Close Registry Editor.

To delete the registry value this malware/grayware created:

1. Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
2. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Security Center
3. In the right panel, locate and delete the entry:
   UacDisableNotify = "1"
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Security Center>Svc
5. In the right panel, locate and delete the entry:
   AntiVirusOverride = "1"
6. Again In the right panel, locate and delete the entry:
   AntiVirusDisableNotify = "1"
7. Again In the right panel, locate and delete the entry:
   FirewallDisableNotify = "1"
8. Again In the right panel, locate and delete the entry:
   FirewallOverride = "1"
9. Again In the right panel, locate and delete the entry:
   UpdatesDisableNotify = "1"
10. Again In the right panel, locate and delete the entry:
    UacDisableNotify = "1"
11. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{63c86e33-ae08-09e4-4ace-e515e7d0491a}
12. In the right panel, locate and delete the entry:
    u = "131075"
13. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>.netbt
14. In the right panel, locate and delete the entry:
    Type = "1"
15. Again In the right panel, locate and delete the entry:
    Start = "3"
16. Again In the right panel, locate and delete the entry:
    ImagePath = "\*"
17. Close Registry Editor.

To restore the registry value this malware/grayware/spyware modified:

1. Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
2. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer>Advanced
3. In the right panel, locate the registry value:
   Hidden = "2"
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   Hidden = "2"
5. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Security Center
6. In the right panel, locate the registry value:
   AntiVirusOverride = "1"
7. Again In the right panel, locate the registry value:
   AntiVirusDisableNotify = "1"
8. Again In the right panel, locate the registry value:
   FirewallDisableNotify = "1"
9. Again In the right panel, locate the registry value:
   FirewallOverride = "1"
10. Again In the right panel, locate the registry value:
    UpdatesDisableNotify = "1"
11. Close Registry Editor.

To delete malware/grayware component files:

1. Search for the following files:
   
   • ACPI#PNP0303#2&da1a3ff&0\L
   • ACPI#PNP0303#2&da1a3ff&0\L\lauljbdm
   • ACPI#PNP0303#2&da1a3ff&0\{1B372133-BFFA-4dba-9CCF-5474BED6A9F6}
   • ACPI#PNP0303#2&da1a3ff&0\U
   
   Note: To do a search for the following files, right-click Start then click Search... or Find..., depending on the version of Windows you are running. For each file to be deleted, type its file name in the Named input box. In the Look In drop-down list, select My Computer, then press Enter.
2. Once located, select the file then press SHIFT+DELETE to permanently delete the file.
3. Repeat the said steps for all files listed.