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Virus Profile: RDN/Downloader.a!nt!DC0D3FF765E6

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 11/7/2013
Date Added: 11/7/2013
Origin: Unknown
Length: 480228
Type: Trojan
Subtype: -
DAT Required: 7251
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/Downloader.a!nt
Length480228 bytes
MD5dc0d3ff765e691b4f3e94f10a5c35551
SHA14b3a192191c0bd03e4793a11ead95c26f3c583d9


Other Common Detection Aliases

Company NamesDetection Names
ahnlabDownloader/Win32.Lipler
AVG (GriSoft)Generic31.CLXF (Trojan horse)
aviraTR/Agent.480228
clamavAdware.Agent-4084
F-ProtW32/NaviPromo.D.gen!Eldorado
FortiNetW32/SKINTRIM.MA!tr
MicrosoftTrojanDownloader:Win32/Wintrim.BX
SymantecTrojan Horse
EsetWin32/Adware.Agent.NMZ application
Trend MicroTROJ_SKINTRIM.MA
V-BusterAdware.Agent!VGxR6nAuTmQ (trojan)

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


ActivitiesRisk Levels
Enumerates many system files and directories.Low
Process attempts to call itself recursivelyLow


McAfee ScansScan Detections
McAfee BetaRDN/Downloader.a!nt
McAfee SupportedRDN/Downloader.a!nt



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:

4B3A192191C0BD03E4793A11EAD95C26F3C583D9

The following files have been added to the system:

  • %TEMP%\~nsu.tmp\Au_.exe
  • %TEMP%\nsq12.tmp\modern-header.bmp
  • %TEMP%\nsq11.tmp
  • %TEMP%\nsi9.tmp

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

  • %TEMP%\nsn8.tmp
  • %TEMP%\nsk10.tmp
  • %TEMP%\nsq12.tmp

The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\CONTROL\SESSION MANAGER\PENDINGFILERENAMEOPERATIONS = \??\%TEMP%\~nsu.tmp\Au_.exe

   

Please use the following instructions for all supported versions of Windows:


1. Disable Windows System Restore. For instructions, please refer to: http://www.mcafee.com/us/downloads/free-tools/disabling-system-restore.aspx

2. Update your McAfee Anti-Virus product to the latest version (when possible), and ensure the latest DAT and Engine and any applicable EXTRA.DATs are installed.

3. Run a full system scan. (On-Demand Scan)

4. Reboot, as soon as it is convenient, to ensure all malicious components are removed.

   

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