ThreatExpert Report: W32/Autorun.worm!ow, Mal/Emogen-Y, Trojan:Win32/Malex.gen!E..

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Submission Summary:

Submission details:

Submission received: 26 October 2012, 06:19:05
Processing time: 7 min 30 sec
Submitted sample:

File MD5: 0x0DF9F0E49983D8EBBAFAB90E9C629227
File SHA-1: 0xD141A6B7CB274EDCE01F181B885C0B0AC31ED8BF
Filesize: 262,144 bytes
Alias:

W32/Autorun.worm!ow [McAfee]
Mal/Emogen-Y [Sophos]
Trojan:Win32/Malex.gen!E [Microsoft]
Trojan.Win32.Malex [Ikarus]

Technical Details:

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Temp%\xx100 %Temp%\xx101 %Temp%\xx102 %Temp%\xx103 %Temp%\xx104 %Temp%\xx105 %Temp%\xx106 %Temp%\xx107 %Temp%\xx108 %Temp%\xx109 %Temp%\xx110 %Temp%\xx111 %Temp%\xx112 %Temp%\xx113 %Temp%\xx114 %Temp%\xx115 %Temp%\xx116 %Temp%\xx117 %Temp%\xx118 %Temp%\xx119 %Temp%\xx12 %Temp%\xx120 %Temp%\xx121 %Temp%\xx122 %Temp%\xx123 %Temp%\xx124 %Temp%\xx125 %Temp%\xx126 %Temp%\xx127 %Temp%\xx128 %Temp%\xx129 %Temp%\xx13 %Temp%\xx130 %Temp%\xx131 %Temp%\xx132 %Temp%\xx133 %Temp%\xx134 %Temp%\xx135 %Temp%\xx136 %Temp%\xx137 %Temp%\xx138 %Temp%\xx139 %Temp%\xx14 %Temp%\xx140 %Temp%\xx141 %Temp%\xx142 %Temp%\xx143 %Temp%\xx144 %Temp%\xx145 %Temp%\xx146 %Temp%\xx147 %Temp%\xx148 %Temp%\xx149 %Temp%\xx15 %Temp%\xx150 %Temp%\xx151 %Temp%\xx152 %Temp%\xx153 %Temp%\xx154 %Temp%\xx155 %Temp%\xx156 %Temp%\xx157 %Temp%\xx158 %Temp%\xx159 %Temp%\xx16 %Temp%\xx160 %Temp%\xx161 %Temp%\xx162 %Temp%\xx163 %Temp%\xx164 %Temp%\xx165 %Temp%\xx166 %Temp%\xx167 %Temp%\xx168 %Temp%\xx169 %Temp%\xx17 %Temp%\xx170 %Temp%\xx171 %Temp%\xx172 %Temp%\xx173 %Temp%\xx174 %Temp%\xx175 %Temp%\xx176 %Temp%\xx177 %Temp%\xx178 %Temp%\xx179 %Temp%\xx18 %Temp%\xx180 %Temp%\xx181 %Temp%\xx182 %Temp%\xx183 %Temp%\xx184 %Temp%\xx185 %Temp%\xx186 %Temp%\xx187 %Temp%\xx188 %Temp%\xx189 %Temp%\xx19 %Temp%\xx190 %Temp%\xx191	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
2	%ProgramFiles%\Common Files\log\%ComputerName%\20121026061908.cab.bak	103,456 bytes	MD5: 0x64D3BF0491CD097F3039B4633A8105C9 SHA-1: 0xCA68733F25999111FCD1385F2A0CFD844FF86D32	(not available)
3	%ProgramFiles%\Common Files\svchost.exe [file and pathname of the sample #1]	262,144 bytes	MD5: 0x0DF9F0E49983D8EBBAFAB90E9C629227 SHA-1: 0xD141A6B7CB274EDCE01F181B885C0B0AC31ED8BF	W32/Autorun.worm!ow [McAfee] Mal/Emogen-Y [Sophos] Trojan:Win32/Malex.gen!E [Microsoft] Trojan.Win32.Malex [Ikarus]
4	%Windir%\drive.ini	49 bytes	MD5: 0xA03CC957E647E4800AA4058BA042357F SHA-1: 0xE8C0F20037DD47E57F36839E9021D8FBB287BA97	(not available)

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).
%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 directories were created:

%ProgramFiles%\Common Files\log
%ProgramFiles%\Common Files\log\%ComputerName%
%Windir%\log

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
svchost.exe	%ProgramFiles%\common files\svchost.exe	344,064 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	344,064 bytes

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ESENT\Process\ipconfig
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ESENT\Process\ipconfig\DEBUG

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ESENT\Process\ipconfig\DEBUG]

Trace Level = ""

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

CheckedValue = "0x00000001 (1)"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\HideFileExt]

UncheckedValue = "0x00000000 (0)"

The following Registry Values were deleted:

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

CheckedValue = 0x00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\HideFileExt]

UncheckedValue = 0x00000000

The following Registry Value was modified:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]

Userinit =

Other details

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

China

To mark the presence in the system, the following Mutex object was created:

fuwa

The following Host Name was requested from a host database:

192.5.5.241

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