RDN/Downloader.a!rx!A​56517B97476

This page shows details and results of our analysis on the malware RDN/Downloader.a!rx!A56517B97476

Overview

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.


Minimum Engine

5600.1067

File Length

613200

Description Added

2014-07-09

Description Modified

2014-07-09

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionRDN/Downloader.a!rx
Length613200 bytes
MD5a56517b974763642a7c2a47ea2f77425
SHA15eac69638d23f410366a9df6cca80586d1a0669b


Other Common Detection Aliases

Company NamesDetection Names
AVG (GriSoft)MultiBundle (Adware)
BitDefenderApplication.Bundler.DownloadSponsor.A
Dr.WebAdware.Downware.2124
FortiNetRiskware/DownloadSponsor
SymantecSuspicious.Cloud.2
EsetWin32/DownloadSponsor.A application
vba32Downware.VB.AndreClient

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
No digital signature is presentInformational


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



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:

5EAC69638D23F410366A9DF6CCA80586D1A0669B

The following files have been added to the system:

  • %TEMP%\OCS\ICSharpCode.SharpZipLib.dll
  • %USERPROFILE%\Local Settings\Application Data\GDIPFONTCACHEV1.DAT
  • %TEMP%\OCS\ocs_v71a.exe
  • %TEMP%\OCS\zmlqqtaxyorwixmh.dat
  • %TEMP%\~DF4E5.tmp

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\OCS\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\OCS\CID = a8e50154-8032-492c-876c-fe4bf354e74a
  • HKEY_CURRENT_USER\SOFTWARE\OCS\LASTPID = chipde
  • HKEY_CURRENT_USER\SOFTWARE\OCS\PID = chipde

The applications attempted the following network connection(s):

  • 46.4.173.***:443
  • hxxp://thinklabs-ltd.de/*****

Symptoms

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

Method 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.

Removal

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.

Variants