ThreatExpert Report: Trojan-PWS.OnlineGames.generic.A!ct, Infostealer.Gampass..

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Submission Summary:

Submission details:

Submission received: 18 February 2010, 16:36:56
Processing time: 6 min 14 sec
Submitted sample:

File MD5: 0x28459BE618DBC2CB25176C49787C9C03
File SHA-1: 0xD6AFD66C1D0056249D832CD699066A6F4FE9B889
Filesize: 100,791 bytes
Alias:

Trojan-PWS.OnlineGames.generic.A!ct [PCTools]
Infostealer.Gampass [Symantec]
Trojan-GameThief.Win32.OnLineGames.uaw [Kaspersky Lab]
PWS-Gamania.gen.a [McAfee]
Mal_NSAnti-1 [Trend Micro]
Mal/EncPk-CE [Sophos]
Worm:Win32/Taterf.AA [Microsoft]
Trojan-GameThief.Win32.OnLineGames [Ikarus]
Win-Trojan/OnlineGameHack.100791 [AhnLab]

Summary of the findings:

What's been found	Severity Level
Sets the drive to autoplay by creating autorun.inf file in its root directory. If the drive is shared across the network then other remote computers can be infected any time they try to access this share.
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! The following threat categories were identified:

Threat Category	Description
	A hacktool that could be used by attackers to break into a system
	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	c:\autorun.inf	498 bytes	MD5: 0x32D50B43C35E04A4068E65B7A2569F8F SHA-1: 0x164BE4080BCE251F47D9A10224E4C58291FE67A3	Mal/AutoInf-B, Mal/AutoInf-A [Sophos] Trojan.AutorunINF [Ikarus]
2	%Temp%\t.dll	26,282 bytes	MD5: 0x67F8F7B50B0C380034BB7D7B84179669 SHA-1: 0x821DDA3AB58465159E3E7E90BF4EED0572D4C41D	Trojan.Lineage.Gen!Pac.3 [PCTools] Hacktool.Rootkit [Symantec] Trojan-GameThief.Win32.OnLineGames.wgz [Kaspersky Lab] PWS-Gamania.gen.a [McAfee] WORM_LEGMIR.MX [Trend Micro] Mal/EncPk-CE [Sophos] VirTool:WinNT/Vanti.gen!B [Microsoft] Win-Trojan/Xpack.26282 [AhnLab]
3	c:\v.cmd %System%\amvo.exe [file and pathname of the sample #1]	100,791 bytes	MD5: 0x28459BE618DBC2CB25176C49787C9C03 SHA-1: 0xD6AFD66C1D0056249D832CD699066A6F4FE9B889	Trojan-PWS.OnlineGames.generic.A!ct [PCTools] Infostealer.Gampass [Symantec] Trojan-GameThief.Win32.OnLineGames.uaw [Kaspersky Lab] PWS-Gamania.gen.a [McAfee] Mal_NSAnti-1 [Trend Micro] Mal/EncPk-CE [Sophos] Worm:Win32/Taterf.AA [Microsoft] Trojan-GameThief.Win32.OnLineGames [Ikarus] Win-Trojan/OnlineGameHack.100791 [AhnLab]
4	%System%\amvo0.dll %System%\amvo1.dll	72,192 bytes	MD5: 0x838DD61ACAE52EF93486D882915A2AA8 SHA-1: 0x90DE10D3AACA04E799403D488F8A1B8A465256DD	Trojan-PWS.OnlineGames.generic.A!ct [PCTools] Infostealer.Gampass [Symantec] Trojan-GameThief.Win32.OnLineGames.uaw [Kaspersky Lab] PWS-Gamania.gen.a [McAfee] Mal_NSAnti-1 [Trend Micro] Mal/EncPk-CE, Mal/Krap-K, Mal/Krap-K [Sophos] Worm:Win32/Taterf.A.dll [Microsoft] Win-Trojan/OnlineGameHack.72192.I [AhnLab]

Notes:

%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).
%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

The following module was loaded into the address space of other process(es):

Module Name	Module Filename	Address Space Details
amvo0.dll	%System%\amvo0.dll	Process name: explorer.exe Process filename: %Windir%\explorer.exe Address space: 0x1FF0000 - 0x2012000

Notes:

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

Registry Modifications

The newly created Registry Value is:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]

amva = "%System%\amvo.exe"

so that amvo.exe runs every time Windows starts

The following Registry Value was modified:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL]

CheckedValue =

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