ThreatExpert Report: Mal/EncPk-ZC

Submission Summary:

Submission details:

Submission received: 18 September 2012, 07:12:47
Processing time: 7 min 57 sec
Submitted sample:

File MD5: 0x714F2FF244E5A02D42D0EA086D1E270E
File SHA-1: 0xE397A3D6CDB05D2F2C97C721C8CA13E89A178A35
Filesize: 55,808 bytes
Alias: Mal/EncPk-ZC [Sophos]

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	%UserProfile%\Ephurrpl\lcswbflkwxj.exe %Temp%\fflzguafhz.pre [file and pathname of the sample #1]	55,808 bytes	MD5: 0x714F2FF244E5A02D42D0EA086D1E270E SHA-1: 0xE397A3D6CDB05D2F2C97C721C8CA13E89A178A35	Mal/EncPk-ZC [Sophos]

Notes:

%UserProfile% is a variable that specifies the current user's profile folder. By default, this is C:\Documents and Settings\[UserName] (Windows NT/2000/XP).
%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).

The following directory was created:

%UserProfile%\Ephurrpl

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
lcswbflkwxj.exe	%UserProfile%\ephurrpl\lcswbflkwxj.exe	81,920 bytes
fflzguafhz.pre	%Temp%\fflzguafhz.pre	73,728 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	73,728 bytes

Registry Modifications

The newly created Registry Value is:

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

jjrtkwxj = "%UserProfile%\Ephurrpl\lcswbflkwxj.exe"

so that lcswbflkwxj.exe runs every time Windows starts

Other details

The following Host Name was requested from a host database:

192.5.5.241

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