TROJ_FAKEAV.FGF

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.

• In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • {random filename1} = "%System Root%\Documents and Settings\All Users\Application Data\{random filename1}.exe"
    
• In HKEY_CURRENT_USER\Control Panel
  • 5761b2dc-ce77-4bfa-b965-6f33b1867cf2 = ""
    
• In HKEY_CURRENT_USER\Control Panel
  • 7f6b3266-31c5-43a8-9547-e7911ad6fb33 = ""
    
• In HKEY_CURRENT_USER\Control Panel
  • nsreg = "{hex value}"
    
• In HKEY_CURRENT_USER\Control Panel
  • bin = "{hex value}"
    
• In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
  • Use FormSuggest = "Yes"
    
• In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer
  • EnableAutoTray = "0"
    
• In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop
  • NoChangingWallPaper = "1"
    
• In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations
  • LowRiskFileTypes = ".zip;.rar;.nfo;.txt;.exe;.bat;.com;.cmd;.reg;.msi;.htm;.html;.gif;.bmp;.jpg;.avi;.mpg;.mpeg;.mov;.mp3;.m3u;.wav;.scr;"
    
• In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments
  • SaveZoneInformation = "1"
    
• In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
  • DisableTaskMgr = "1"
    
• In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
  • NoDesktop = "1"
    
• In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system
  • DisableTaskMgr = "1"
    
• In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
  • Use FormSuggest = "Yes"
    
• In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
  • WarnOnZoneCrossing = "0"
    
• In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
  • WarnonBadCertRecving = "0"
    
• In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
  • CertificateRevocation = "0"
    

To delete the registry value this malware created:

1. Open Registry Editor. To do this, click Start>Run, type regedit in the text box provided, then press Enter.
2. In the left panel of the Registry Editor window, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run
3. In the right panel, locate and delete the entry:
   {random filename1} = "%System Root%\Documents and Settings\All Users\Application Data\{random filename1}.exe"
4. In the left panel of the Registry Editor window, double-click the following:
   HKEY_CURRENT_USER>Control Panel
5. In the right panel, locate and delete the entry:
   5761b2dc-ce77-4bfa-b965-6f33b1867cf2 = ""
6. Again In the right panel, locate and delete the entry:
   7f6b3266-31c5-43a8-9547-e7911ad6fb33 = ""
7. Again In the right panel, locate and delete the entry:
   nsreg = "{hex value}"
8. Again In the right panel, locate and delete the entry:
   bin = "{hex value}"
9. In the left panel of the Registry Editor window, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>Main
10. In the right panel, locate and delete the entry:
    Use FormSuggest = "Yes"
11. In the left panel of the Registry Editor window, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer
12. In the right panel, locate and delete the entry:
    EnableAutoTray = "0"
13. In the left panel of the Registry Editor window, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Policies>ActiveDesktop
14. In the right panel, locate and delete the entry:
    NoChangingWallPaper = "1"
15. In the left panel of the Registry Editor window, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Policies>Associations
16. In the right panel, locate and delete the entry:
    LowRiskFileTypes = ".zip;.rar;.nfo;.txt;.exe;.bat;.com;.cmd;.reg;.msi;.htm;.html;.gif;.bmp;.jpg;.avi;.mpg;.mpeg;.mov;.mp3;.m3u;.wav;.scr;"
17. In the left panel of the Registry Editor window, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Policies>Attachments
18. In the right panel, locate and delete the entry:
    SaveZoneInformation = "1"
19. In the left panel of the Registry Editor window, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Policies>System
20. In the right panel, locate and delete the entry:
    DisableTaskMgr = "1"
21. In the left panel of the Registry Editor window, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Policies>Explorer
22. In the right panel, locate and delete the entry:
    NoDesktop = "1"
23. In the left panel of the Registry Editor window, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>policies>system
24. In the right panel, locate and delete the entry:
    DisableTaskMgr = "1"
25. Again In the right panel, locate and delete the entry:
    Use FormSuggest = "Yes"
26. In the left panel of the Registry Editor window, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings
27. In the right panel, locate and delete the entry:
    WarnOnZoneCrossing = "0"
28. Again In the right panel, locate and delete the entry:
    WarnonBadCertRecving = "0"
29. Again In the right panel, locate and delete the entry:
    CertificateRevocation = "0"
30. Close Registry Editor.

To restore the registry value this malware/grayware modified:

1. Open Registry Editor. Click Start>Run, type REGEDIT in the text box provided, and then press Enter.
2. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>Download
3. In the right panel, locate the registry value:
   CheckExeSignatures = "no"
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   CheckExeSignatures = "yes"
5. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer>Advanced
6. In the right panel, locate the registry value:
   Hidden = "0"
7. Right-click on the value name and choose Modify. Change the value data of this entry to:
   Hidden = "1"
8. Again In the right panel, locate the registry value:
   ShowSuperHidden = "0"
9. Right-click on the value name and choose Modify. Change the value data of this entry to:
   ShowSuperHidden = "1"
10. Close Registry Editor.

To delete the malware/grayware folder:

1. Right-click Start then click Search... or Find..., depending on the version of Windows you are running.
2. In the Named input box, type:
   
    
   
   • %Start Menu%\Programs\System Check
3. In the Look In drop-down list, select My Computer, then press Enter.
4. Once located, select the folder then press SHIFT+DELETE to permanently delete the folder.

To delete malware/grayware component files:

1. Search for the following files:
   
    
   • %System Root%\Documents and Settings\All Users\Application Data\{random filename2}
   • %User Profile%\Application Data\Microsoft\Internet Explorer\Quick Launch\System Check.lnk
   • %Desktop%\System Check.lnk
   
   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.

To reset Internet security settings:

1. Close all Internet broser windows.
2. Open Control Panel. To do this:
   • On Windows 2000
   Click Start>Settings>Control Panel
   • On Windows XP and Server 2003
   Click Start>Control Panel
3. Double-click Internet Options.
4. In the Internet Properties window, click the Security tab.
5. For each Web content zone, click on the Default Level button to set each zone to the default setting.
6. Click OK.