Troj/Delf-BPC

Aliases	Trojan.Win32.Delf.nu
Category	Viruses and Spyware
Type	Trojan
What to do	If you've received an alert for a virus or spyware, then follow the instructions for removing the threat.
Prevalence	low high

Summary


Affected operating systems	Windows
Characteristics	Installs itself in the registry
Included in our products from	May 2006 (4.05)
Protection available since	6 April 2006 09:26:40 (GMT)
Detected by	All Sophos products

Troj/Delf-BPC is a Trojan for the Windows platform.

When first run Troj/Delf-BPC copies itself to <System>\oobe\csrss.exe and creates the following files:

<CurrentFolder>\init.bat - this file may be deleted
<System>\shlapiw32.dll - also detected as Troj/Delf-BPC

The following registry entries are created to run code exported by the Trojan libraries on startup:

HKLM\SOFTWARE\Microsoft\Windows
\CurrentVersion\ShellServiceObjectDelayLoad
Windows Update
(459FA2B2-E4C2-13D4-CA84-03501F45B839)

HKLM\SOFTWARE\Microsoft\Windows\
CurrentVersion\ShellServiceObjectDelayLoad
Battery Monitor
(459352B2-D4CE-13D4-2D78-03501003EF20)

The files csrss.exe and shlapiw32.dll are registered as COM objects, creating registry entries under:

HKCR\CLSID\(459352B2-D4CE-13D4-2D78-03501003EF20)
HKCR\CLSID\(459FA2B2-E4C2-13D4-CA84-03501F45B839)

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