ThreatExpert Report: Trojan-PWS.OnlineGames.ADRD, Trojan-Downloader.Win32.Small.hsh, Infostealer..

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Submission Summary:

Submission details:

Submission received: 17 June 2008, 04:03:26
Processing time: 4 min 20 sec
Submitted sample:

File MD5: 0x1AA09B4D11DB6ABC09C06307982FCEC3
File SHA-1: 0x803F607823DF299A22F3804A5CEF92F9802E01C9
Filesize: 14,910 bytes
Alias:

Trojan-PWS.OnlineGames.ADRD [PCTools]
Infostealer [Symantec]
Trojan-Downloader.Win32.Small.hsh [Kaspersky Lab]
Downloader.gen.a [McAfee]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
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.ADRD	Trojan-PWS.OnlineGames.ADRD monitors the infected computer to steal password and other confidential information.

Attention! The following threat categories were identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment
	A keylogger program that can capture all user keystrokes (including confidential details such username, password, credit card number, etc.)
	A program that downloads files to the local computer that may represent security risk

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Temp%\tmp1.tmp %Temp%\tmp2.tmp	8,704 bytes	MD5: 0x661629AFADC7E5E52D4ED1DA2904C1CA SHA-1: 0x90922AA06C0E6305550007ED2A00A98FDCD4494B	Trojan.OnlineGames.Gen.72 [PCTools] Generic Downloader.x [McAfee] TROJ_AGENT.ZCA [Trend Micro]
2	%Temp%\tmp10.tmp %Temp%\tmp11.tmp %Temp%\tmp12.tmp %Temp%\tmp13.tmp %Temp%\tmp14.tmp %Temp%\tmp15.tmp %Temp%\tmp16.tmp %Temp%\tmp17.tmp %Temp%\tmp18.tmp %Temp%\tmp19.tmp %Temp%\tmp1A.tmp %Temp%\tmp1B.tmp %Temp%\tmp1C.tmp %Temp%\tmp1D.tmp %Temp%\tmp1E.tmp %Temp%\tmp1F.tmp %Temp%\tmp20.tmp %Temp%\tmp21.tmp %Temp%\tmp25.tmp %Temp%\tmp27.tmp %Temp%\tmp28.tmp %Temp%\tmp29.tmp %Temp%\tmp2A.tmp %Temp%\tmp2B.tmp %Temp%\tmp2C.tmp %Temp%\tmp2D.tmp %Temp%\tmp2E.tmp %Temp%\tmp2F.tmp %Temp%\tmp3.tmp %Temp%\tmp30.tmp %Temp%\tmp31.tmp %Temp%\tmp32.tmp %Temp%\tmp33.tmp %Temp%\tmp34.tmp %Temp%\tmp35.tmp %Temp%\tmp36.tmp %Temp%\tmp37.tmp %Temp%\tmp38.tmp %Temp%\tmp39.tmp %Temp%\tmp3A.tmp %Temp%\tmp3B.tmp %Temp%\tmp3C.tmp %Temp%\tmp3D.tmp %Temp%\tmp3E.tmp %Temp%\tmp3F.tmp %Temp%\tmp4.tmp %Temp%\tmp40.tmp %Temp%\tmp41.tmp %Temp%\tmp42.tmp %Temp%\tmp43.tmp %Temp%\tmp44.tmp %Temp%\tmp45.tmp %Temp%\tmp46.tmp %Temp%\tmp47.tmp %Temp%\tmp48.tmp %Temp%\tmp49.tmp %Temp%\tmp4A.tmp %Temp%\tmp4B.tmp %Temp%\tmp4C.tmp %Temp%\tmp4D.tmp %Temp%\tmp4E.tmp %Temp%\tmp4F.tmp %Temp%\tmp5.tmp %Temp%\tmp50.tmp %Temp%\tmp51.tmp %Temp%\tmp52.tmp %Temp%\tmp53.tmp %Temp%\tmp54.tmp %Temp%\tmp55.tmp %Temp%\tmp56.tmp %Temp%\tmp57.tmp %Temp%\tmp58.tmp %Temp%\tmp59.tmp %Temp%\tmp5A.tmp %Temp%\tmp5B.tmp %Temp%\tmp5C.tmp %Temp%\tmp5D.tmp %Temp%\tmp5E.tmp %Temp%\tmp5F.tmp %Temp%\tmp6.tmp %Temp%\tmp60.tmp %Temp%\tmp61.tmp %Temp%\tmp62.tmp %Temp%\tmp63.tmp %Temp%\tmp64.tmp %Temp%\tmp65.tmp %Temp%\tmp66.tmp %Temp%\tmp67.tmp %Temp%\tmp68.tmp %Temp%\tmp69.tmp %Temp%\tmp6A.tmp %Temp%\tmp6B.tmp %Temp%\tmp6C.tmp %Temp%\tmp6D.tmp %Temp%\tmp6E.tmp %Temp%\tmp6F.tmp %Temp%\tmp7.tmp %Temp%\tmp70.tmp %Temp%\tmp71.tmp %Temp%\tmp72.tmp	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
3	%System%\drivers\TesSafe.sys	20,480 bytes	MD5: 0xD4029F1D1D35CE4FD08761F784C44377 SHA-1: 0x46A21CFFAE2FB6331AE6F88292BF7BB1B9EC27C9	(not available)
4	[file and pathname of the sample #1]	14,910 bytes	MD5: 0x1AA09B4D11DB6ABC09C06307982FCEC3 SHA-1: 0x803F607823DF299A22F3804A5CEF92F9802E01C9	Trojan-PWS.OnlineGames.ADRD [PCTools] Infostealer [Symantec] Trojan-Downloader.Win32.Small.hsh [Kaspersky Lab] Downloader.gen.a [McAfee]

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

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
tmp1.tmp	%Temp%\tmp1.tmp	20,480 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	106,496 bytes

There was a new kernel-mode driver installed in the system:

Driver Name	Driver Filename
TesSafe	%System%\DRIVERS\TesSafe.sys

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_TESSAFE
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_TESSAFE\0000
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_TESSAFE\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\TesSafe
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\TesSafe\Security
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\TesSafe\Enum
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_TESSAFE
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_TESSAFE\0000
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_TESSAFE\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TesSafe
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TesSafe\Security
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TesSafe\Enum

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_TESSAFE\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "TesSafe"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_TESSAFE\0000]

Service = "TesSafe"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "TesSafe"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_TESSAFE]

NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\TesSafe\Enum]

0 = "Root\LEGACY_TESSAFE\0000"
Count = 0x00000001
NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\TesSafe\Security]

Security = 01 00 14 80 90 00 00 00 9C 00 00 00 14 00 00 00 30 00 00 00 02 00 1C 00 01 00 00 00 02 80 14 00 FF 01 0F 00 01 01 00 00 00 00 00 01 00 00 00 00 02 00 60 00 04 00 00 00 00 00 14 00 FD 01 02 00 01 01 00 00 00 00 00 05 12 00 00 00 00 00 18 00 FF 01 0F 0

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\TesSafe]

Type = 0x00000001
Start = 0x00000003
ErrorControl = 0x00000001
ImagePath = "%System%\DRIVERS\TesSafe.sys"
DisplayName = "TesSafe"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_TESSAFE\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "TesSafe"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_TESSAFE\0000]

Service = "TesSafe"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "TesSafe"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_TESSAFE]

NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TesSafe\Enum]

0 = "Root\LEGACY_TESSAFE\0000"
Count = 0x00000001
NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TesSafe\Security]

Security = 01 00 14 80 90 00 00 00 9C 00 00 00 14 00 00 00 30 00 00 00 02 00 1C 00 01 00 00 00 02 80 14 00 FF 01 0F 00 01 01 00 00 00 00 00 01 00 00 00 00 02 00 60 00 04 00 00 00 00 00 14 00 FD 01 02 00 01 01 00 00 00 00 00 05 12 00 00 00 00 00 18 00 FF 01 0F 0

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TesSafe]

Type = 0x00000001
Start = 0x00000003
ErrorControl = 0x00000001
ImagePath = "%System%\DRIVERS\TesSafe.sys"
DisplayName = "TesSafe"

Other details

Analysis of the file resources indicate the following possible country of origin:

China

The data identified by the following URL was then requested from the remote web server:

http://z1.5w5w5w.com/bt.txt

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