Submission Summary:

• Submission details:
• Submission received: 3 October 2008, 22:21:58
• Processing time: 6 min 2 sec
• Submitted sample:
• File MD5: 0x17E6D8F763C28681E0C20F703705C518
• File SHA-1: 0x1E21B5C202178EC88F6885D33A692CB436D01319
• Filesize: 20,480 bytes
• Alias:
• Troj/Zlob-ALO [Sophos]
• Trojan:Win32/Meredrop [Microsoft]

• Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Creates a startup registry entry.
Registers a 32-bit in-process server DLL.
Registers a Browser Helper Object (Microsoft's Internet Explorer plugin module).

Technical Details:

File System Modifications

• The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%System%\iebt.dll	8,704 bytes	MD5: 0x114363E4B1E800BC37259354314DA9B7 SHA-1: 0xEF342C15EAB30F07E78CEF1D02A4295E12614260	(not available)
2	%System%\iebtmm.exe	6,144 bytes	MD5: 0x958FF87017AAC547497A33248C7435FF SHA-1: 0xEC8A47126ACA8C4551720F91978ABF3EDE88F151	(not available)
3	[file and pathname of the sample #1]	20,480 bytes	MD5: 0x17E6D8F763C28681E0C20F703705C518 SHA-1: 0x1E21B5C202178EC88F6885D33A692CB436D01319	Troj/Zlob-ALO [Sophos] Trojan:Win32/Meredrop [Microsoft]

• 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 were new processes created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	57,344 bytes
iebtmm.exe	%System%\iebtmm.exe	40,960 bytes

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

Module Name	Module Filename	Address Space Details
iebt.dll	%System%\iebt.dll	Process name: IEXPLORE.EXE Process filename: %ProgramFiles%\internet explorer\iexplore.exe Address space: 0xDC0000 - 0xDCB000

• Notes:
• %ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.

Registry Modifications

• The following Registry Keys were created:
• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{CFEE97A3-4911-444D-8BE8-E243A23D3DE2}
• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{CFEE97A3-4911-444D-8BE8-E243A23D3DE2}\InprocServer32
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Extensions\{9034A523-D068-4BE8-A284-9DF278BE776E}
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{CFEE97A3-4911-444D-8BE8-E243A23D3DE2}
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\explorer
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\explorer\run
• HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Search
• HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes
• HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{DAED9266-8C28-4C1C-8B58-5C66EFF1D302}

• The newly created Registry Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{CFEE97A3-4911-444D-8BE8-E243A23D3DE2}\InprocServer32]
• (Default) = "%System%\iebt.dll"
• ThreadingModel = "Apartment"
• [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{CFEE97A3-4911-444D-8BE8-E243A23D3DE2}]
• www = "www"
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Extensions\{9034A523-D068-4BE8-A284-9DF278BE776E}]
• MenuText = "IE Anti-Spyware"
• Exec = "http://www.iexplorerfile.com/redirect.php"
• CLSID = "{1FBA04EE-3024-11D2-8F1F-0000F87ABD16}"
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{CFEE97A3-4911-444D-8BE8-E243A23D3DE2}]
• (Default) = ""
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\explorer\run]
• start = "[file and pathname of the sample #1]"

so that [file and pathname of the sample #1] runs every time Windows starts

• [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Extensions\CmdMapping]
• {9034A523-D068-4BE8-A284-9DF278BE776E} = 0x00002001
• [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{DAED9266-8C28-4C1C-8B58-5C66EFF1D302}]
• DisplayName = "Search"
• URL = "http://www.searchhenge.com/index.php?b=1&t=0&q={searchTerms}"
• [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes]
• DefaultScope = "{DAED9266-8C28-4C1C-8B58-5C66EFF1D302}"

• The following Registry Value was modified:
• [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Extensions\CmdMapping]
• NextId = 0x00002002

Other details

• The following Internet Connection was established:

• The following GET requests were made:
• security
• index.jpg