ThreatExpert Report: HackTool:MSIL/Binder.gen!C, Trojan-Dropper.Small

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Submission Summary:

Submission details:

Submission received: 15 September 2012, 16:11:18
Processing time: 7 min 52 sec
Submitted sample:

File MD5: 0x9E21238E9BA3BC68BC5B1C9D00624970
File SHA-1: 0x102867D51CC11746D0E4DDFCDCF4AB59ECC77162
Filesize: 335,872 bytes
Alias:

HackTool:MSIL/Binder.gen!C [Microsoft]
Trojan-Dropper.Small [Ikarus]

Summary of the findings:

What's been found	Severity Level
Creates a startup registry entry.

Technical Details:

File System Modifications

The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AppData%\Microsoft\System\Services\msconfig.exe [file and pathname of the sample #1]	335,872 bytes	MD5: 0x9E21238E9BA3BC68BC5B1C9D00624970 SHA-1: 0x102867D51CC11746D0E4DDFCDCF4AB59ECC77162	HackTool:MSIL/Binder.gen!C [Microsoft] Trojan-Dropper.Small [Ikarus]

Note:

%AppData% is a variable that refers to the file system directory that serves as a common repository for application-specific data. A typical path is C:\Documents and Settings\[UserName]\Application Data.

The following directories were created:

%AppData%\Microsoft\System
%AppData%\Microsoft\System\Services

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]	331,776 bytes
msconfig.exe	%AppData%\Microsoft\System\Services\msconfig.exe	331,776 bytes

Registry Modifications

The newly created Registry Values are:

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

msconfig = "%AppData%\Microsoft\System\Services\msconfig.exe"

so that msconfig.exe runs every time Windows starts

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

msconfig = "%AppData%\Microsoft\System\Services\msconfig.exe"

so that msconfig.exe runs every time Windows starts

Other details

To mark the presence in the system, the following Mutex objects were created:

UserName5
UserName4
UserName1

The following Host Name was requested from a host database:

192.5.5.241

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