Submission Summary:

• Submission details:
• Submission received: 16 November 2008, 06:56:15
• Processing time: 5 min 30 sec
• Submitted sample:
• File MD5: 0x8DC219493E189EA4C6AF372079E7C42D
• File SHA-1: 0x35951CCC9F70141258886FFB575B104ECFE3191C
• Filesize: 14,217 bytes
• Alias & packer info:
• Infostealer.Onlinegame [Symantec]
• Mal/Packer [Sophos]
• Trojan.Win32.Small.md [Ikarus]
• packed with: FSG [Kaspersky Lab]

• Summary of the findings:

What's been found	Severity Level
Creates a startup registry entry.
Packed with a packer that is known to be used by malware (e.g. to complicate threat analysis or detection).
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

• Attention! The following threat category was identified:

Threat Category	Description
	A keylogger program that can capture all user keystrokes (including confidential details such username, password, credit card number, etc.)

File System Modifications

• The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	[file and pathname of the sample #1]	14,217 bytes	MD5: 0x8DC219493E189EA4C6AF372079E7C42D SHA-1: 0x35951CCC9F70141258886FFB575B104ECFE3191C	Infostealer.Onlinegame [Symantec] Mal/Packer [Sophos] Trojan.Win32.Small.md [Ikarus] packed with FSG [Kaspersky Lab]
2	%System%\wd081025.dll	32,768 bytes	MD5: 0xF6D68B028CCE993C07A08DDFCBAD660A SHA-1: 0x27FDA02CF3C5EDA7D038FC139C2A9970414F694B	Infostealer.Onlinegame [Symantec] Trojan-Banker.Win32.Agent.de [Kaspersky Lab] PWS-Mmorpg.gen [McAfee] Generic.PWStealer [Ikarus]
3	%System%\zywendao.dat	19 bytes	MD5: 0x7DECD5F51EE6712E7DD6B65BC4FD36BF SHA-1: 0xFE9952B55E27349F68B6596CE32FBAE6BBEE9288	(not available)
4	%System%\zywendao2.dat	19 bytes	MD5: 0xA011B5A6D7D64C50912BEE668E96DF1E SHA-1: 0x136E08C932E004A93E3B4AEB164F84094A0FF23E	(not available)

• Note:
• %System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

Memory Modifications

• There was a new process created in the system:

• The following modules were loaded into the address space of other process(es):

Module Name	Module Filename	Address Space Details
wd081025.dll	%System%\wd081025.dll	Process name: explorer.exe Process filename: %Windir%\explorer.exe Address space: 0x1880000 - 0x188E000
wd081025.dll	%System%\wd081025.dll	Process name: msmsgs.exe Process filename: %ProgramFiles%\messenger\msmsgs.exe Address space: 0xBA0000 - 0xBAE000
wd081025.dll	%System%\wd081025.dll	Process name: dllhost.exe Process filename: %System%\dllhost.exe Address space: 0x2530000 - 0x253E000
wd081025.dll	%System%\wd081025.dll	Process name: sdnsmain.exe Process filename: %Windir%\dns\sdnsmain.exe Address space: 0x1620000 - 0x162E000
wd081025.dll	%System%\wd081025.dll	Process name: [generic host process] Process filename: [generic host process filename] Address space: 0x390000 - 0x39E000
wd081025.dll	%System%\wd081025.dll	Process name: IEXPLORE.EXE Process filename: %ProgramFiles%\internet explorer\iexplore.exe Address space: 0x1B00000 - 0x1B0E000

• Notes:
• %Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.
• %ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.
• [generic host process filename] is a full path filename of [generic host process].

Registry Modifications

• The newly created Registry Value is:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
• Startwd = "rundll32.exe %System%\wd081025.dll,Hook"

so that wd081025.dll runs every time Windows starts