ThreatExpert Report: Trojan.Win32.Alureon, FakeAlert-DA, Trojan:Win32/Alureon.BK..

Submission Summary:

Submission details:

Submission received: 21 July 2009, 18:53:50
Processing time: 7 min 40 sec
Submitted sample:

File MD5: 0x87CFCC91FB9934E55D3C969997D2BDC1
File SHA-1: 0x7F09E74DA3E62A6AF645D602F2358F6249D15C3D
Filesize: 88,514 bytes
Alias: Trojan.Win32.Alureon [Ikarus]

Summary of the findings:

What's been found	Severity Level
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risks were identified in the system:

Security Risk	Description
Trojan.TDSServ	Trojan.TDSServ is a trojan horse that may represent security risk for the compromised system and/or its network environment. The program uses rootkit-specific techniques designed to hide the software presence in the system. This trojan also blocks user access to security website such as pctools.com.
Trojan-Dropper.Delf.XA	Trojan-Dropper.Delf.XA pretends to be legitimate Internet-Explorer-like browser which monitors users browsing activities and displays pop-up advertisements.

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Temp%\.exe	24,576 bytes	MD5: 0x5B2D86B35F84F118F1563605F1FFE1F3 SHA-1: 0xD1AF39BB020230FC97207438E0985672D65365DB	FakeAlert-DA [McAfee] Trojan:Win32/Alureon.BK [Microsoft]
2	%Temp%\tmp4.tmp	14,336 bytes	MD5: 0x324FAD791C8063EBE0661EFD113744E3 SHA-1: 0xA8FEF116F00C6D21809732A3EA16AB26907B58EB	Trojan:Win32/Alureon.BH [Microsoft]
3	%Temp%\tmp5.tmp	343,040 bytes	MD5: 0x81C3146EF21C8E48FCF691DFBCAF2A99 SHA-1: 0xD25DBAC7F139433E570C194A99E08873DD3FDB29	Trojan:Win32/Alureon.CD [Microsoft]
4	%Programs%\Uninstall.lnk	584 bytes	MD5: 0xC0A6FC90D40B5899411271147DD28E2B SHA-1: 0x5FFFCEFF6094E961EA107F1FC914A568CB632ACD	(not available)
5	%ProgramFiles%\Uninstall.exe	62,813 bytes	MD5: 0x3C989FDF344DC2D772E38625E93B1C1A SHA-1: 0xBA588230583242DA57C54BC403E7DB0FE974DDDF	Trojan.Win32.Alureon [Ikarus]
6	%Windir%\pchealth\ERRORREP\UserDumps\spoolsv.exe.20090722-025457-00.hdmp	2,467,533 bytes	MD5: 0xBB613113E417303E496269682CB4A4DC SHA-1: 0x500C9CBBEFFB42DD6DCFDE24CE8330E5A24ECA8D	(not available)
7	%Windir%\pchealth\ERRORREP\UserDumps\spoolsv.exe.20090722-025457-00.mdmp	50,984 bytes	MD5: 0x4CE567F00E9DC40A75D7A710505B1029 SHA-1: 0x666B642B80FEE2403D8039A9CAF4F285B2013D07	(not available)
8	[file and pathname of the sample #1]	88,514 bytes	MD5: 0x87CFCC91FB9934E55D3C969997D2BDC1 SHA-1: 0x7F09E74DA3E62A6AF645D602F2358F6249D15C3D	Trojan.Win32.Alureon [Ikarus]

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).
%Programs% is a variable that refers to the file system directory that contains the user's program groups. A typical path is C:\Documents and Settings\[UserName]\Start Menu\Programs.
%ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.
%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

The following directory was created:

%Windir%\pchealth\ERRORREP\UserDumps

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
.exe	%Temp%\.exe	57,344 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	3,883,008 bytes

The following system service was modified:

Service Name	Display Name	New Status	Service Filename
Spooler	Print Spooler	"Stopped"	%System%\spoolsv.exe

Notes:

%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).

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\videoshow
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\videoshow\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PCHealth\ErrorReporting\UserFaults

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\videoshow\CLSID]

(Default) = "{6BF52A52-394A-11D3-B153-00C04F79FAA6}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PCHealth\ErrorReporting\UserFaults]

%Windir%\PCHealth\ErrorRep\UserDumps\spoolsv.exe.20090722-025457-00.mdmp = DA 00 00 00 60 00 00 00 60 00 00 00 A0 00 00 00 5F 1D 00 00 00 00 00 00 05 00 01 00 28 0A 84 08 00 00 00 00 00 00 00 00 00 00 00 00 D9 07 07 00 03 00 16 00 02 00 36 00 39 00 CA 00 30 00 30 00 05 00 00 C0 31 00 38 00 00 00 00 00 00 00 00 00 B4 7E 10 4

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

UserFaultCheck = "%System%\dumprep 0 -u"

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

UninstallString = ""%ProgramFiles%\Uninstall.exe""
InstallLocation = "C:\Program Files"
DisplayName = ""
DisplayIcon = "%ProgramFiles%\Uninstall.exe,0"

[HKEY_CURRENT_USER\Software]

(Default) = "C:\Program Files"

The following Registry Values were modified:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\ServiceCurrent]

(Default) = 0x0000000C

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ServiceCurrent]

(Default) = 0x0000000C

Other details

There was registered attempt to establish connection with the remote host. The connection details are:

Remote Host	Port Number
91.214.45.73	80

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