RDN/Generic.bfr!el!B0​A86E1F0A65

This page shows details and results of our analysis on the malware RDN/Generic.bfr!el!B0A86E1F0A65

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

7108 (2013-06-16)

Updated DAT

7108 (2013-06-16)

Minimum Engine

5400.1158

File Length

350076

Description Added

2013-06-17

Description Modified

2013-06-17

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionRDN/Generic.bfr!el
Length350076 bytes
MD5b0a86e1f0a65e15536c70f0d061154ca
SHA120e4b0ca9372b50b4e4941bffe8eabc2ad47f948


Other Common Detection Aliases

Company NamesDetection Names
EMSI SoftwareTrojan.GenericKDV.1042751 (B)
ahnlabTrojan/Win32.Injector
avastWin32:Malware-gen
AVG (GriSoft)Win32/Heur
aviraBDS/Turkojan.AI.149 back-door program
BitDefenderTrojan.GenericKDV.1042751
Dr.WebTrojan.Rent.14
FortiNetW32/Generic!tr
MicrosoftBackdoor:Win32/Turkojan.AI
EsetWin32/Injector.AIAO
normanwinpe/Troj_Generic.LYRFH
SophosMal/Ransom-AZ

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
Enumerates process listLow
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.bfr!el
McAfee SupportedRDN/Generic.bfr!el



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:

20E4B0CA9372B50B4E4941BFFE8EABC2AD47F948

The following files have been added to the system:

  • %WINDIR%\ntdtcstp.dll
  • %WINDIR%\mstwain32.exe
  • %APPDATA%\InstallDir\help.exe
  • %ALLUSERSPROFILE%\Start Menu\Programs\Startup\system.pif
  • %USERPROFILE%\Start Menu\Programs\Startup\system.pif
  • %WINDIR%\cmsetac.dll

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\HELP = [binary data]
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\MSTWAIN32 = %WINDIR%\mstwain32.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\HELP = [binary data]

The applications attempted the following network connection(s):

  • 177.139.92.***:15963

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