ThreatExpert Report: Trojan.Gen, Trojan-Downloader.Win32.NSIS.hb, Generic Downloader.oy..

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Submission Summary:

Submission details:

Submission received: 5 October 2012, 23:35:45
Processing time: 8 min 7 sec
Submitted sample:

File MD5: 0xF8855F1CF8704E0F30042822378D2B1A
File SHA-1: 0x51C7F9B9A484402C9BE8CAC25EABB3401C628E63
Filesize: 122,273 bytes
Alias:

Trojan.Gen [Symantec]
Trojan-Downloader.Win32.NSIS.hb [Kaspersky Lab]
Generic Downloader.oy [McAfee]
Trojan:Win32/Comame [Microsoft]
Trojan-Downloader.Win32.NSIS [Ikarus]

Summary of the findings:

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

Technical Details:

The new window was created, as shown below:

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Possible Security Risk

Attention! The following threat categories were identified:

Threat Category	Description
	A program that downloads files to the local computer that may represent security risk
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Temp%\diskyczs.exe	15,360 bytes	MD5: 0x67CEC73E5AFAF9438E0301549BFA5434 SHA-1: 0x759708B9E50EAF8FC03DB924A91E59E5F0AEC105	packed with UPX [Kaspersky Lab]
2	[file and pathname of the sample #1]	122,273 bytes	MD5: 0xF8855F1CF8704E0F30042822378D2B1A SHA-1: 0x51C7F9B9A484402C9BE8CAC25EABB3401C628E63	Trojan.Gen [Symantec] Trojan-Downloader.Win32.NSIS.hb [Kaspersky Lab] Generic Downloader.oy [McAfee] Trojan:Win32/Comame [Microsoft] Trojan-Downloader.Win32.NSIS [Ikarus]

Note:

%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).

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
diskyczs.exe	%Temp%\diskyczs.exe	53,248 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	217,088 bytes

Registry Modifications

The newly created Registry Value is:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]

NoDrives = 0x00000000

Other details

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

China

The following Host Name was requested from a host database:

192.5.5.241

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