Virus Profile: RDN/Generic BackDoor!BE90E3C7B146

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 5/13/2014
Date Added: 5/13/2014
Origin: Unknown
Length: 668160
Type: Trojan
Subtype: -
DAT Required: 7435
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 BackDoor
Length668160 bytes
MD5be90e3c7b146bce1a721f4e4801fcf7d
SHA14d24678e0deba42111245923da129ac4a4e8267b


Other Common Detection Aliases

Company NamesDetection Names
aviraTR/Injector.DHU.7
KasperskyBackdoor.Win32.DarkKomet.crfd
Dr.WebTrojan.StartPage.61748
FortiNetMSIL/Injector.DHU!tr
EsetMSIL/Injector.DHU trojan (variant)
SophosMal/Generic-S

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


ActivitiesRisk Levels
Attempts to write to a memory location of a previously loaded process.Medium
Adds or modifies winlogon userinit registry value. Could be used to launch a program on startup.Medium
Modifies winlogon configuration settings in registryMedium
Enumerates many system files and directories.Low
Process attempts to call itself recursivelyLow
Adds or modifies Internet Explorer cookiesLow
Attempts to write to a memory location of an unknown processLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaRDN/Generic BackDoor
McAfee SupportedRDN/Generic BackDoor



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:

4D24678E0DEBA42111245923DA129AC4A4E8267B

The following files have been added to the system:

  • %USERPROFILE%\My Documents\MSDCSC\msdcsc.exe

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\DC3_FEXEC\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\MICROUPDATE = %USERPROFILE%\My Documents\MSDCSC\msdcsc.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON\USERINIT = %WINDIR%\SYSTEM32\userinit.exe,%USERPROFILE%\My Documents\MSDCSC\msdcsc.exe

The applications attempted the following network connection(s):

  • 77.28.72.**:1604

   

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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