Virus Profile: RDN/Generic Downloader.x!5C61299941E9

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 5/9/2013
Date Added: 5/9/2013
Origin: Unknown
Length: 204648
Type: Trojan
Subtype: -
DAT Required: 7070
Removal Instructions
   
 
 
   

Description

This is a Trojan detection. Unlike viruses, Trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include e-mail, malicious or hacked Web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Indication of Infection

This symptoms of this detection are the files, registry, and network communication referenced in the characteristics section.

Methods of Infection

Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, e-mail, etc.

   

Virus Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionRDN/Generic Downloader.x
Length204648 bytes
MD55c61299941e99cefd6fa24bb1eb8c2a9
SHA12484997b6846e36ee957ff2232acabda4bad542f


Other Common Detection Aliases

Company NamesDetection Names
ahnlabTrojan/Win32.OnlineGameHack
avastWin32:Agent-APWI
aviraTR/Dropper.Gen
Dr.WebTrojan.Siggen5.15926
FortiNetW32/Alyak.F!tr
Trend MicroTROJ_SPNR.0BDE13
vba32Trojan.Downloader.gen.h

Other brands and names may be claimed as the property of others.


ActivitiesRisk Levels
Attempts to write to a memory location of a Windows system processHigh
Attempts to access kernel memory. This could be an attempt to modify memory to run kernel level code by rootkitsMedium
Enumerates many system files and directories.Low
Attempts to send data or commands via HTTPLow
Process attempts to call itself recursivelyLow
Adds or modifies Internet Explorer cookiesLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaRDN/Generic Downloader.x
McAfee SupportedRDN/Generic Downloader.x



System Changes

Some path values have been replaced with environment variables as the exact location may vary with different configurations.
e.g.
%WINDIR% = \WINDOWS (Windows 9x/ME/XP/Vista/7), \WINNT (Windows NT/2000)
%PROGRAMFILES% = \Program Files


The following files were analyzed:

2484997B6846E36EE957FF2232ACABDA4BAD542F

The following files have been added to the system:

  • %TEMP%\880EF.exe
  • %TEMP%\vJEHjZR.exe
  • %COMMONPROGRAMFILES%\Apple\Mobile Device Support\apple.exe

The following files were temporarily written to disk then later removed:

  • %TEMP%\1.bat

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS SCRIPT\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS SCRIPT\SETTINGS\
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\ACTIVE SETUP\INSTALLED COMPONENTS\1409[private subnet]\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS SCRIPT\SETTINGS\JITDEBUG = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\ACTIVE SETUP\INSTALLED COMPONENTS\1409[private subnet]\STUBPATH = %COMMONPROGRAMFILES%\Apple\Mobile Device Support\apple.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\OLE\VERSION = 5
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\CONTROL\SESSION MANAGER\PENDINGFILERENAMEOPERATIONS = \??\C:\ver.exe

The applications attempted the following network connection(s):

  • 61.78.63.**:80
  • hxxp://blog.chosun.com/rss/*****

   

All Users:

Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:

1.Disable System Restore .

2.Update to current engine and DAT files for detection and removal.

3.Run a complete system scan.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

1. Please go to the Microsoft Recovery Console and restore a clean MBR.

On windows XP:

Insert the Windows XP CD into the CD-ROM drive and restart the computer.
When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
Select the Windows installation that is compromised and provide the administrator password
Issue 'fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.


On Windows Vista and 7:

Insert the Windows CD into the CD-ROM drive and restart the computer.
Click on "Repair Your Computer"
When the System Recovery Options dialog comes up, choose the Command Prompt.
Issue 'bootrec /fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.

   

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