PUA.Win32.AmmyyAdmin.C

To delete the registry key this malware/grayware/spyware created:

1. Restart your computer in Safe Mode. For instructions on how to do this, you may refer to this page.
2. Open Registry Editor. To do this:
   » For Windows 7 and Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
   » For Windows 8, 8.1, 10, and Server 2012 (R2) users, right-click on the lower left corner of the screen, click Run, type regedit in the text box provided, and then press Enter.
• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\AmmyyAdmin
3. Close Registry Editor.

To delete the registry value this malware created:

1. Open Registry Editor. To do this:
   » For Windows 7 and Windows Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
   » For Windows 8, Windows 8.1, 10, and Windows Server 2012 (R2) 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 of the Registry Editor window, double-click the following:
   HKEY_CURRENT_USER>Software>Ammyy>Admin
3. In the right panel, locate and delete the entry:
   hr = {Random Hex}
4. In the left panel of the Registry Editor window, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Ammyy>Admin
5. In the right panel, locate and delete the entry:
   hr = {Random Hex}
6. Again In the right panel, locate and delete the entry:
   hr3 = {Random Hex}
7. Again In the right panel, locate and delete the entry:
   hr3 = {Random Hex}
8. In the left panel of the Registry Editor window, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Control>SafeBoot>Network>AmmyyAdmin_52C
9. In the right panel, locate and delete the entry:
   {Default} = Service
10. Close Registry Editor.

To delete registry keys this malware/grayware created:

1. Open Registry Editor. To do this:
   » For Windows 7 and Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
   » For Windows 8, 8.1, 10, and Server 2012 (R2) 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 of the Registry Editor window, double-click the following:
   HKEY_CURRENT_USER>Software>
3. Still in the left panel, locate and delete the key:
   Ammyy
4. In the left panel of the Registry Editor window, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>
5. Still in the left panel, locate and delete the key:
   Ammyy
6. In the left panel of the Registry Editor window, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Control>SafeBoot>Network>
7. Still in the left panel, locate and delete the key:
   AmmyyAdmin_52C
8. Close Registry Editor.

To delete malware/grayware files:

For Windows 7 and Server 2008 (R2), 8, 8.1, 10, and Server 2012 (R2):

1. Open a Windows Explorer window.
   • For Windows 7 and Server 2008 (R2) users, click Start>Computer.
   • For Windows 8, 8.1, 10, 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:
   
   • %ProgramData%\AMMYY\hr
   • %ProgramData%\AMMYY\hr3
   • %ProgramData%\AMMYY\settings3.bin
   • {Malware Path}\{Malware Name}.log
3. Once located, select the file then press SHIFT+DELETE to delete it.
4. Repeat the said steps for all files listed.
   *Note: Read the following Microsoft page if these steps do not work on Windows 7 and Server 2008 (R2).

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:
   
   • %ProgramData%\AMMYY
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.