Troj/Dumaru-L

Aliases	Trojan-Spy.Win32.Banker.s
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	Drops more malware Installs itself in the registry
Included in our products from	September 2005 (3.97)
Protection available since	26 July 2005 20:47:08 (GMT)
Detected by	All Sophos products

Troj/Dumaru-L is a password-stealing Trojan for the Windows platform.

Troj/Dumaru-L includes functionality to send data to remote locations.

When first run Troj/Dumaru-L copies itself to:

<Startup>\rundllw.exe
<Windows>\dllreg.exe
<System>\load32.exe
<System>\vxdmgr32.exe

and creates the file <Windows>\sock55.dll.

The file sock55.dll is detected as Troj/Keylog-AB.

The following registry entries are created to run dllreg.exe, load32.exe and vxdmgr32.exe on startup:

HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows
run
<Windows>\dllreg.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
load32
<Windows system>\load32.exe

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Shell
explorer.exe <Windows system>\vxdmgr32.exe

Registry entries are created under:

HKLM\SOFTWARE\SARS\

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