ThreatExpert Report: Trojan-Dropper.Win32.Dapato

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Submission Summary:

Submission details:

Submission received: 10 August 2012, 05:50:15
Processing time: 8 min 23 sec
Submitted sample:

File MD5: 0x2AFC24260938B4297808A5604CFC432E
File SHA-1: 0x8FDF05087142DB238237F30FC09F00415DC6AD19
Filesize: 103,936 bytes
Alias & packer info:

Trojan-Dropper.Win32.Dapato [Ikarus]
packed with: UPX [Kaspersky Lab]

Technical Details:

File System Modifications

The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AppData%\Zcxaxz.exe	103,936 bytes	MD5: 0x2AFC24260938B4297808A5604CFC432E SHA-1: 0x8FDF05087142DB238237F30FC09F00415DC6AD19	Trojan-Dropper.Win32.Dapato [Ikarus] packed with UPX [Kaspersky Lab]

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.

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
Zcxaxz.exe	%AppData%\zcxaxz.exe	167,936 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	167,936 bytes

There was a new memory page created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
explorer.exe	%Windir%\explorer.exe	167,936 bytes

Notes:

%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

Registry Modifications

The newly created Registry Value is:

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

Zcxaxz = "%AppData%\zcxaxz.exe"

Other details

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

t2f_im-Mutex

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