Troj/Prorat-D

Category: Viruses and Spyware
Type: Trojan
Prevalence: Small Number of Reports

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Aliases

  • Backdoor.Prorat.15

Affected Operating Systems

Windows

Recovery Instructions:

Please follow the instructions for removing Trojans.

You will also need to edit the following registry entries, if they are present. Please read the warning about editing the registry.

At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.

Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.

Locate the HKEY_LOCAL_MACHINE entries:

HKLM\Software\Microsoft\Active Setup\Installed Components\
[5Y99AE78-58TT-11dW-BE53-Y67078979Y]\
StubPath = C:\<Windows System>\<filename>

HKLM\Software\Microsoft\Active Setup\Installed Components\
[A75aed00-d7bf-11d1-9947-00c0Cf98bbc9]\
StubPath = C:\<Windows System>\<filename>

HKLM\Software\Microsoft\Windows\CurrentVersion\policies\Explorer\Run\
DirectX for Microsoft Windows = C:\<Windows System>\<filename>

HKLM\Software\Microsoft\Windows\CurrentVersion\policies\Explorer\Run\
Windows Reg Services = C:\<Windows System>\<filename>

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Windows Reg Services = C:\<Windows System>\<filename>

and delete them if they exist.

Locate the HKEY_LOCAL_MACHINE entry:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell

it should contain a reference to explorer.exe (or possibly NALWIN32.exe if you are using NetWare) only. Remove the reference to C:\<Windows System>\<filename>. Do not remove the reference to explorer.exe.

Each user has a registry area named HKEY_USERS\[code number indicating user]\. For each user locate the entry:

HKU\[code number]\Software\Microsoft\Windows\CurrentVersion\
Run\Windows Reg Services = C:\<Windows System>\<filename>

and delete it if it exists.

Close the registry editor.

Editing SYSTEM.INI and WIN.INI

At the taskbar, click Start|Run and type Sysedit.

  • Bring System.ini to the front. In the 'shell=' line in the [Boot] section, search for any references to the files you deleted. Delete only that reference, not any other text.
  • Bring Win.ini to the front. In the [windows] section, search for a line beginning with 'Run=' and delete any references to the files you removed. Delete only that reference, not any other text.

Reboot your computer.

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