ThreatExpert Report: Infostealer.Gampass, Worm.Win32.VB.gr, New Malware.u, WORM

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Submission Summary:

Submission details:

Submission received: 14 April 2008, 19:55:06
Processing time: 3 min 46 sec
Submitted sample:

File MD5: 0xD9F0CBACA1006BBFB0189A24F8333F51
File SHA-1: 0xF57A6DFD3FDFE77FAD611A3087788ABB950AE5E7
Filesize: 27,345 bytes
Alias:

Infostealer.Gampass [Symantec]
Worm.Win32.VB.gr [Kaspersky Lab]
New Malware.u [McAfee]
WORM_VB.DLQ [Trend Micro]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
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! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Trojan-PWS.OnlineGames.KW	Trojan.PSW.OnlineGames.KW monitors online games such as World of Warcraft to steal password information.

Attention! The following threat categories were identified:

Threat Category	Description
	A keylogger program that can capture all user keystrokes (including confidential details such username, password, credit card number, etc.)
	A network-aware worm that attempts to replicate across the existing network(s)

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%System%\close.vbs	454 bytes	MD5: 0x14ED269650BEB0A6475DB612FF98AFB5 SHA-1: 0xF847340B874AEEF2E43DAE88B328312D28953A9E	(not available)
2	[file and pathname of the sample #1]	27,345 bytes	MD5: 0xD9F0CBACA1006BBFB0189A24F8333F51 SHA-1: 0xF57A6DFD3FDFE77FAD611A3087788ABB950AE5E7	Infostealer.Gampass [Symantec] Worm.Win32.VB.gr [Kaspersky Lab] New Malware.u [McAfee] WORM_VB.DLQ [Trend Micro]

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:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	147,456 bytes

Registry Modifications

The following Registry Keys were created:

HKEY_CURRENT_USER\Software\Microsoft\Windows Script Host
HKEY_CURRENT_USER\Software\Microsoft\Windows Script Host\Settings

The newly created Registry Value is:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

(Default) = "%System%\scvhost.exe"

The following Registry Value was modified:

[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main]

Start Page = "http://www.hao123.com/"

Other details

The following Internet Connection was established:

Server Name	Server Port	Connect as User	Connection Password
www.hao123.com	80	(null)	(null)

The following Internet download was started (the retrieved bits are saved into the local file):

URL to be downloaded	Filename for the downloaded bits
http://www.xiangxue.org/mum/c.txt	%Windir%\wiasevct.txt

Notes:

%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

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