Sophos

Troj/AleSpy-B

Aliases
  • Trojan.Win32.Agent.eo
  • Spy-Agent.h
  • W32.Desktophijack
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Drops more malware
Included in our products from August 2005 (3.96)
Protection available since 29 June 2005 05:01:29 (GMT)
Detected by All Sophos products

Action

More Information

Troj/AleSpy-B is a Trojan for the Windows platform.

Troj/AleSpy-B will attempt to spy on web traffic. The Trojan will also attempt to download and run executable files.

When first run, Troj/AleSpy-B will alter the Windows Desktop background. The Trojan will change the color of the Desktop and display a fake blue screen error image with the following text:

Security warning

A fatal error in IE has occured at 0028:c0011e36 in VXD VMM(01) +
00010E36. Error was caused by Trojan-Spy.HTML.Smitfraud.c

* System can not function in normal mode.
Please check you security settings.

* Scan your PC with any avaliable antivirus / spyware remover
program to fix the problem.

Troj/AleSpy-B will drop the following files:

<System>\oleadm.dll
<System>\wp.bmp
<System>\wp.gif
<System>\uninstIU.exe

Troj/AleSpy-B will copy the Windows DLL file in <System>\winint.dll to <System>\oleadm32.dll. The Trojan will then alter the copy. The altered copy is also detected as Troj/AleSpy-B. When Windows is rebooted, the infected copy will replace the original Windows DLL file.

Troj/AleSpy-B sets the following registry entries:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NoActiveDesktopChanges
1

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
NoDispBackgroundPage
1

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
NoDispAppearancePage
1

HKCU\CLSID\(357A87ED-3E5D-437d-B334-DEB7EB4982A3)\

HKCU\Control Panel\Colors
Background
1 2 172

HKCU\Control Panel\Desktop
Wallpaper
<System>\wp.bmp

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