TROJ_SAMCA.B

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.

• For Windows Vista, Windows 7, and Windows Server 2008 users

1. Restart your computer.
2. Press F8 after the Power-On Self Test (POST) routine is done. If the Advanced Boot Options menu does not appear, try restarting and then pressing F8 several times after the POST screen is displayed.
3. On the Advanced Boot Options menu, use the arrow keys to select the Safe Mode option, and then press Enter.

• For Windows 8, Windows 8.1, and Windows Server 2012 users

1. Access the Charms bar by moving your mouse pointer to the upper right corner of the screen.
2. Move your mouse pointer down and click Settings>Change your PC Settings.
3. In the left panel, click General.
4. In the right panel, scroll down to the bottom to find the Advanced startup section, then click the Restart now button and wait for the system to restart.
5. In the Advanced Startup menu, click Troubleshoot>Advanced Options>Startup Settings>Restart and wait for the system to restart.
6. In the Startup Settings menu, press 4 to enable safe mode.

To delete the registry key this malware/grayware created:

1. Open Registry Editor.
   » For Windows 2000, Windows XP, and Windows Server 2003 users, click Start>Run, type regedit in the text box provided, and then press Enter.
   » For Windows Vista, Windows 7, and Windows Server 2008 users, click the Start button, type regedit in the Search input field then press Enter.
   » For Windows 8, Windows 8.1, and Windows Server 2012 users, right-click on the lower left corner of the screen, click 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
3. Still in the left panel, locate and delete the key:
   Approved Extensions
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Mozilla>Firefox
5. Still in the left panel, locate and delete the key:
   Extensions
6. In the left panel, double-click the following:
   HKEY_CURRENT_USER>SOFTWARE>Mozilla>Firefox
7. Still in the left panel, locate and delete the key:
   Extensions
8. In the left panel, double-click the following:
   HKEY_CLASSES_ROOT
9. Still in the left panel, locate and delete the key:
   IE.PerformancePack
10. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>IE.PerformancePack
11. Still in the left panel, locate and delete the key:
    CLSID
12. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID
13. Still in the left panel, locate and delete the key:
    {1ADEFB8E-B913-32E6-86E2-3B7841F5D2A8}
14. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{1ADEFB8E-B913-32E6-86E2-3B7841F5D2A8}
15. Still in the left panel, locate and delete the key:
    InprocServer32
16. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{1ADEFB8E-B913-32E6-86E2-3B7841F5D2A8}>InprocServer32
17. Still in the left panel, locate and delete the key:
    4.7.3.5
18. Again Still in the left panel, locate and delete the key:
    ProgId
19. Again Still in the left panel, locate and delete the key:
    Implemented Categories
20. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{1ADEFB8E-B913-32E6-86E2-3B7841F5D2A8}>Implemented Categories
21. Still in the left panel, locate and delete the key:
    {62C8FE65-4EBB-45e7-B440-6E39B2CDBF29}
22. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Component Categories
23. Still in the left panel, locate and delete the key:
    {62C8FE65-4EBB-45e7-B440-6E39B2CDBF29}
24. Close Registry Editor.

To delete the registry value this malware/grayware created:

1. Open Registry Editor.
   » For Windows 2000, Windows XP, and Windows Server 2003 users, click Start>Run, type regedit in the text box provided, and then press Enter.
   » For Windows Vista, Windows 7, and Windows Server 2008 users, click the Start button, type regedit in the Search input field then press Enter.
   » For Windows 8, Windows 8.1, and Windows Server 2012 users, right-click on the lower-left corner of the screen, click 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>Windows>CurrentVersion>Run
3. In the right panel, locate and delete the entry:
   WindowsLiveUpdate = "%User Temp%\WindowsLiveUp.exe startup"
4. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>Approved Extensions
5. In the right panel, locate and delete the entry:
   {1ADEFB8E-B913-32e6-86E2-3B7841F5D2A8} = "{random values}"
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Mozilla>Firefox>Extensions
7. In the right panel, locate and delete the entry:
   hotfix@mozilla.org = "%User Profile%\Extensions\MozillaHotfix"
8. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Mozilla>Firefox>Extensions
9. In the right panel, locate and delete the entry:
   hotfix@mozilla.org = "%User Profile%\Extensions\MozillaHotfix"
10. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{1ADEFB8E-B913-32E6-86E2-3B7841F5D2A8}>InprocServer32
11. In the right panel, locate and delete the entry:
    ThreadingModel = "Both"
12. Again In the right panel, locate and delete the entry:
    Class = "IE.PerformancePack"
13. Again In the right panel, locate and delete the entry:
    Assembly = "MSLive, Version
14. Again In the right panel, locate and delete the entry:
    RuntimeVersion = "v2.0.50727"
15. Again In the right panel, locate and delete the entry:
    CodeBase = "{random characters}"
16. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{1ADEFB8E-B913-32E6-86E2-3B7841F5D2A8}>InprocServer32>4.7.3.5
17. In the right panel, locate and delete the entry:
    Class = "IE.PerformancePack"
18. Again In the right panel, locate and delete the entry:
    Assembly = "MSLive, Version
19. Again In the right panel, locate and delete the entry:
    RuntimeVersion = "v2.0.50727"
20. Again In the right panel, locate and delete the entry:
    CodeBase = "{random characters}"
21. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Component Categories>{62C8FE65-4EBB-45e7-B440-6E39B2CDBF29}
22. In the right panel, locate and delete the entry:
    0 = ".NET Category"
23. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Explorer>Browser Helper Objects>{1adefb8e-b913-32e6-86e2-3b7841f5d2a8}
24. In the right panel, locate and delete the entry:
    NoExplorer = "1"
25. Close Registry Editor.

To restore registry values this malware/grayware modified:

1. Open Registry Editor. To do this:
   
   • On Windows 2000, XP, and Server 2003:
     Click Start>Run, type REGEDIT in the text box provided, and then press Enter.
   • On Windows Vista, 7, and Server 2008:
     Click the Start button, type REGEDIT in the Search input field then press Enter.
   • On Windows 8, 8.1, and Server 2012:
     Right-click on the lower left corner of the screen and click Run, type REGEDIT in the Run input field, and then press Enter.
2. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Zones>3
3. In the right panel, locate the registry value:
   1A10 = "0"
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   1A10 = "1"
5. Again In the right panel, locate the registry value:
   {A8A88C49-5EB2-4990-A1A2-0876022C854F} = "{random values}"
6. Right-click on the value name and choose Modify. Change the value data of this entry to:
   {A8A88C49-5EB2-4990-A1A2-0876022C854F} = "{random values}"
7. Again In the right panel, locate the registry value:
   {AEBA21FA-782A-4A90-978D-B72164C80120} = "{random values}"
8. Right-click on the value name and choose Modify. Change the value data of this entry to:
   {AEBA21FA-782A-4A90-978D-B72164C80120} = "{random values}"
9. Close Registry Editor.

To manually delete a malware/grayware file from an affected system:

• For Windows 2000, Windows XP, and Windows Server 2003:

1. Right-click Start then click Search....
2. In the File name* input box, type the following:
   
   • %User Temp%\MTool.exe
   • %User Temp%\MTool.exe.config
   • %User Temp%\temp.cmd
   • %User Profile%\MCommon1\sites.dat
   • %User Profile%\MCommon1\config.dat
   • %User Profile%\MCommon1\vinfo.dat
   • %User Profile%\MCommon1\uid1.dat
   • %User Profile%\WinLiveUpdate\MSLive.dll
   • %User Profile%\WinLiveUpdate\Interop.SHDocVw.dll
   • %User Profile%\WinLiveUpdate\MSHTMLSubset.dll
   • %User Profile%\WinLiveUpdate\ie9lib.dll
   • %User Profile%\MozillaHotfix\chrome.manifest
   • %User Profile%\MozillaHotfix\install.rdf
   • %User Profile%\content\addlist.js
   • %User Profile%\content\em.xul
   • %User Profile%\content\hashtable.js
   • %User Profile%\content\overlay.xul
   • %User Profile%\content\update.js
   • %User Temp%\WindowsLiveUp.exe.config
   • %User Temp%\WindowsLiveUp.exe
3. In the Look In drop-down list, select My Computer then press Enter.
4. Once located, select the file then press SHIFT+DELETE to delete it.
   *Note: The file name input box title varies depending on the Windows version (e.g. Search for files or folders named or All or part of the file name.).

• For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:

1. Open a Windows Explorer window.
   • For Windows Vista, 7, and Server 2008 users, click Start>Computer.
   • For Windows 8, 8.1, and Server 2012 users, right-click on the lower left corner of the screen,then click File Explorer.
2. In the Search Computer/This PC input box, type:
   
   • %User Temp%\MTool.exe
   • %User Temp%\MTool.exe.config
   • %User Temp%\temp.cmd
   • %User Profile%\MCommon1\sites.dat
   • %User Profile%\MCommon1\config.dat
   • %User Profile%\MCommon1\vinfo.dat
   • %User Profile%\MCommon1\uid1.dat
   • %User Profile%\WinLiveUpdate\MSLive.dll
   • %User Profile%\WinLiveUpdate\Interop.SHDocVw.dll
   • %User Profile%\WinLiveUpdate\MSHTMLSubset.dll
   • %User Profile%\WinLiveUpdate\ie9lib.dll
   • %User Profile%\MozillaHotfix\chrome.manifest
   • %User Profile%\MozillaHotfix\install.rdf
   • %User Profile%\content\addlist.js
   • %User Profile%\content\em.xul
   • %User Profile%\content\hashtable.js
   • %User Profile%\content\overlay.xul
   • %User Profile%\content\update.js
   • %User Temp%\WindowsLiveUp.exe.config
   • %User Temp%\WindowsLiveUp.exe
3. Once located, select the file then press SHIFT+DELETE to delete it.
   *Note: Read the following Microsoft page if these steps do not work on Windows 7.

To delete malware/grayware/spyware folders:

For Windows 2000, Windows XP, and Windows Server 2003:

1. Right-click Start then click Search... or Find..., depending on the version of Windows you are running.
2. In the File name* input box, type:
   
   • %User Temp%\MTemp1
   • %User Profile%\Application Data\MCommon1
   • %User Profile%\Application Data\WinLiveUpdate
   • %User Profile%\Application Data\Mozilla
   • %User Profile%\Mozilla\Firefox
   • %User Profile%\Firefox\Extensions
   • %User Profile%\Extensions\MozillaHotfix
   • %User Profile%\MozillaHotfix\chrome
   • %User Profile%\chrome\content
   • %User Profile%\chrome\skin
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.
5. Repeat steps 2 to 4 for the remaining folders:
   • %User Temp%\MTemp1
   • %User Profile%\Application Data\MCommon1
   • %User Profile%\Application Data\WinLiveUpdate
   • %User Profile%\Application Data\Mozilla
   • %User Profile%\Mozilla\Firefox
   • %User Profile%\Firefox\Extensions
   • %User Profile%\Extensions\MozillaHotfix
   • %User Profile%\MozillaHotfix\chrome
   • %User Profile%\chrome\content
   • %User Profile%\chrome\skin
   *Note: The file name input box title varies depending on the Windows version (e.g. Search for files or folders named or All or part of the file name.).

For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:

1. Open a Windows Explorer window.
   • For Windows Vista, 7, and Server 2008 users, click Start>Computer.
   • For Windows 8, 8.1, and Server 2012 users, right-click on the lower left corner of the screen, then click File Explorer.
2. In the Search Computer/This PC input box, type:
   
   • %User Temp%\MTemp1
   • %User Profile%\Application Data\MCommon1
   • %User Profile%\Application Data\WinLiveUpdate
   • %User Profile%\Application Data\Mozilla
   • %User Profile%\Mozilla\Firefox
   • %User Profile%\Firefox\Extensions
   • %User Profile%\Extensions\MozillaHotfix
   • %User Profile%\MozillaHotfix\chrome
   • %User Profile%\chrome\content
   • %User Profile%\chrome\skin
3. Once located, select the file then press SHIFT+DELETE to permanently delete the folder.
4. Repeat steps 2-3 for the remaining folders:
   • %User Temp%\MTemp1
   • %User Profile%\Application Data\MCommon1
   • %User Profile%\Application Data\WinLiveUpdate
   • %User Profile%\Application Data\Mozilla
   • %User Profile%\Mozilla\Firefox
   • %User Profile%\Firefox\Extensions
   • %User Profile%\Extensions\MozillaHotfix
   • %User Profile%\MozillaHotfix\chrome
   • %User Profile%\chrome\content
   • %User Profile%\chrome\skin
   *Note: Read the following Microsoft page if these steps do not work on Windows 7.