RDN/Generic.bfr!dt!CD​6241ECB58F

This page shows details and results of our analysis on the malware RDN/Generic.bfr!dt!CD6241ECB58F

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 DAT

7071 (2013-05-10)

Updated DAT

7071 (2013-05-10)

Minimum Engine

5400.1158

File Length

815616

Description Added

2013-05-12

Description Modified

2013-05-12

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionRDN/Generic.bfr!dt
Length815616 bytes
MD5cd6241ecb58f69322e1f5311f9d182e2
SHA1c76686372da1615e5add6329704a7f3e9859840f


Other Common Detection Aliases

Company NamesDetection Names
aviraBDS/DarkKomet.akjy back-door program
KasperskyBackdoor.Win32.DarkKomet.akjy
Dr.WebBackDoor.Comet.152
FortiNetW32/DarkKomet.AKJY!tr.bdr

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
Enumerates many system files and directories.Low
Process attempts to call itself recursivelyLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaRDN/Generic.bfr!dt
McAfee SupportedRDN/Generic.bfr!dt



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:

C76686372DA1615E5ADD6329704A7F3E9859840F

The following files have been added to the system:

  • %USERPROFILE%\My Documents\MSDCSC\msdcsc.exe
  • %TEMP%\CVTRES.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 NT\CURRENTVERSION\WINLOGON\SHELL = explorer.exe,%TEMP%\winini.exe
  • 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

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

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.

Variants