Sophos

Troj/Zlob-LB

Aliases
  • Win32/TrojanDownloader.Zlob.OR
  • Trojan-Downloader.Win32.Zlob.pz
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 29 May 2006 21:43:49 (GMT)
Detected by All Sophos products
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Action

More Information

Troj/Zlob-LB is a Trojan for the Windows platform.

The Trojan pretends to be an installer for an application called "DigiKeygen 2.10", but installs Troj/Zlob-LA files instead of those of the expected application.

When the Trojan is installed the following files are created:

<Desktop>\digikeygen.lnk
<Start Menu\Programs>\DigiKeygen\DigiKeygen Login.lnk
<Start Menu\Programs>\DigiKeygen\DigiKeygen.lnk
<Program Files>\DigiKeygen\digikeygen.exe
<Program Files>\DigiKeygen\digikeygen.exe.manifest
<Program Files>\DigiKeygen\DigiKeygen.url
<Program Files>\DigiKeygen\uninst.exe

The following registry entry is set:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\explorer\run
wininet.dll
regperf.exe

where regperf.exe is detected as Troj/Zlob-LA.

Registry entries are created under:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\DigiKeygen\

The following registry entry is set:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\helper.exe
<Program Files>\DigiKeygen\digikeygen.exe

Troj/Zlob-LB provides an uninstall option which can be accessed via the Add or Remove Programs dialog in the Windows Control Panel. The software is listed as "DigiKeygen 2.10". However this does not uninstall the Trojan.

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