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Dial/Switch-D

Aliases
  • Trojan-Downloader.Win32.Delf.kb;
  • application
  • Dialer-212;
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 18 March 2005 13:54:15 (GMT)
Detected by All Sophos products
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Action

Please follow the instructions for removing dialers.

Windows NT/2000/XP/2003

In Windows NT/2000/XP/2003 you will also need to edit the following registry entry. The removal of this entry is optional in Windows 95/98/Me. 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 entry:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\
sVideo2 =
<path to Dialler>

and delete it if it exists.

Close the registry editor.

More Information

Dial/Switch-D is a premium rate porn dialler. When the dialler is installed it may attempt to dial premium rate services without the knowledge of the user.

Dial/Switch-D will attempt to reduce security levels and lock down control of Internet Explorer and Netscape by setting the following registry entries:

HKCU\Software\Microsoft\Internet Explorer\Main\FeatureControl\
FEATURE_LOCALMACHINE_LOCKDOWN\iexplore.exe =
0

HKCU\Software\Microsoft\Internet Explorer\New Windows\Allow\
*.ffx23wl.nl

HKCU\Software\Netscape\Netscape Navigator\User Trusted External Applications
<Path to Dialler> = "Yes"

HKCU\Software\Netscape\Netscape Navigator\Viewers\
TYPE42 = "application/x-callswitch"

HKCU\Software\Netscape\Netscape Navigator\Viewers\
application/x-callswitch = <Path to Dialler>

The dialler will also attempt to register a new MIME class of "application/x-callswitch" with ".cxq" and ".mxq" extentsion by setting entries in:

HKCR\Classes\
HKCR\MIME\Database\Content Type\application/x-callswitch\

Dial/Switch-D creates a copy of itself in the Windows system folder and creates the following registry entry in order to run automatically on computer login:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\
sVideo2 =
<path to Dialler>

Registry entries will also be created under:

HKLM\SOFTWARE\Make12

HKLM\SOFTWARE\SwitchDialer

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Switch

and referencing this CLSID:

5CBF8C22-E9A6-11D7-90FE-000AE4012DB4

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