RDN/Generic BackDoor!il!ED234F5F0​CFD

This page shows details and results of our analysis on the malware RDN/Generic BackDoor!il!ED234F5F0CFD

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

7031 (2013-03-31)

Updated DAT

7031 (2013-03-31)

Minimum Engine

5400.1158

File Length

348160

Description Added

2013-04-02

Description Modified

2013-04-02

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionRDN/Generic BackDoor!il
Length348160 bytes
MD5ed234f5f0cfdf7b9d11432147d6cb470
SHA1bbb65777cddcf5ca588535c10d1ec2730f67c0bb


Other Common Detection Aliases

Company NamesDetection Names
ahnlabTrojan/Win32.HDC
avastWin32:VB-CZT [Wrm]
aviraTR/Spy.Gen
KasperskyTrojan.Win32.Agent.xgbg
BitDefenderBackdoor.Agent.1
FortiNetW32/RShot.CSE!tr.bdr
EsetWin32/VB.NQR trojan (variant)
normanObfuscated.F!genr (trojan)
pandaGeneric Trojan
risingBackdoor.Budu!2456
SophosMal/VBDldr-B
V-BusterBackdoor.Agent!PAGEjIO8Ev8 (trojan)

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


ActivitiesRisk Levels
Modifies Windows security center settings.High
Adds or modifies system policies. Could be used to prevent the or detour the use of common system tools.High
Enumerates many system files and directories.Low
No digital signature is presentInformational


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



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:

BBB65777CDDCF5CA588535C10D1EC2730F67C0BB

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

  • %TEMP%\~DFF90D.tmp
  • %TEMP%\3892358092376.bat

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\WINDOWS LIVE MESSENGER = %APPDATA%\WindowsUpdate\MSUpdate.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\UACDISABLENOTIFY = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM\ENABLELUA = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\WINDOWS LIVE MESSENGER = %APPDATA%\WindowsUpdate\MSUpdate.exe
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\DONOTALLOWEXCEPTIONS = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\AUTHORIZEDAPPLICATIONS\LIST\%TEMP%\BBB65777CDDCF5CA588535C10D1EC2730F67C0BB.EXE = %TEMP%\BBB65777CDDCF5CA588535C10D1EC2730F67C0BB.exe:*:Enabled: Windows Live Messenger
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\AUTHORIZEDAPPLICATIONS\LIST\%APPDATA%\WINDOWSUPDATE\MSUPDATE.EXE = %APPDATA%\WindowsUpdate\MSUpdate.exe:*:Enabled: Windows Live Messenger

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