TROJ_BUZUS.DAO

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Delete this registry key

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

• In HKEY_LOCAL_MACHINE\Software
  • Licenses

• In HKEY_CLASSES_ROOT\CLSID
  • {7C231048-7C23-1048-7C23-10487C231048}

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • AuxUserType

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}\AuxUserType
  • 2

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • DataFormats

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}\DataFormats
  • DefaultSet

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}\DataFormats
  • GetSet

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}\DataFormats\GetSet
  • 0

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}\DataFormats\GetSet
  • 1

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}\DataFormats\GetSet
  • 2

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • DefaultIcon

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • InprocHandler32

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • Insertable

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • LocalServer

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • LocalServer32

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • MiscStatus

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • ProgID

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • verb

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}\verb
  • 0

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}\verb
  • 1

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}\verb
  • 2

Step 3

Delete this registry value

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

• In HKEY_LOCAL_MACHINE\SOFTWARE\Licenses
  • {R7C0DB872A3F777C0} = "{random values}"

• In HKEY_LOCAL_MACHINE\SOFTWARE\Licenses
  • {K7C0DB872A3F777C0} = "{random values}"

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • AppID = "{00022601-0000-0000-C000-000000000046}"

• In HKEY_LOCAL_MACHINE\SOFTWARE\Licenses
  • {I7C231048FFFFFFFF} = "{random values}"

• In HKEY_LOCAL_MACHINE\SOFTWARE\Licenses
  • {07C231048FFFFFFFF} = "{random values}"

Step 4

Restore this modified registry value

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

• In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\RFC1156Agent\CurrentVersion\Parameters
  • From: TrapPollTimeMilliSecs = "3a98"
    To: TrapPollTimeMilliSecs = ""3a98""

Step 5

Scan your computer with your Trend Micro product to delete files detected as TROJ_BUZUS.DAO. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.

Step 6

Restore these deleted registry keys/values from backup

*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.

• In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7C231048-7C23-1048-7C23-10487C231048}
  • Version