RDN/Generic BackDoor!vp!9E8C5BE1F​289

This page shows details and results of our analysis on the malware RDN/Generic BackDoor!vp!9E8C5BE1F289

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

7284 (2013-12-09)

Updated DAT

7284 (2013-12-09)

Minimum Engine

5600.1067

File Length

499200

Description Added

2013-12-09

Description Modified

2013-12-09

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionRDN/Generic BackDoor!vp
Length499200 bytes
MD59e8c5be1f289ac3bae22af2a4fbd7c12
SHA133cc1e7ae43e15a57b5003a7c7918a2a75a9aae8


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Malware-gen
aviraTR/Dropper.MSIL.Gen8
KasperskyBackdoor.Win32.Androm.aauj
BitDefenderGen:Variant.Zusy.54433
Dr.WebBackDoor.Comet.152
FortiNetMSIL/Injector.BUX!tr
EsetMSIL/Injector.BOA
V-BusterBackdoor.Androm!kBDpi7UAAC0 (trojan)

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


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


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



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:

33CC1E7AE43E15A57B5003A7C7918A2A75A9AAE8

The following files have been added to the system:

  • %APPDATA%\AHDATQ.exe
  • %TEMP%\temp_xQinMlcCIn\Vbc.exe
  • %TEMP%\tmp1A.tmp.exe
  • %APPDATA%\l

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

  • %TEMP%\tmp1A.tmp

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\VB AND VBA PROGRAM SETTINGS\
  • HKEY_CURRENT_USER\SOFTWARE\VB AND VBA PROGRAM SETTINGS\INSTALL\
  • HKEY_CURRENT_USER\SOFTWARE\VB AND VBA PROGRAM SETTINGS\INSTALL\DATE\
  • HKEY_CURRENT_USER\SOFTWARE\VB AND VBA PROGRAM SETTINGS\SRVID\
  • HKEY_CURRENT_USER\SOFTWARE\VB AND VBA PROGRAM SETTINGS\SRVID\ID\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON\SHELL = %WINDIR%\Explorer.exe; %TEMP%\tmp1A.tmp.exe
  • HKEY_CURRENT_USER\SOFTWARE\VB AND VBA PROGRAM SETTINGS\INSTALL\DATE\806IO5VL40 = November 15, 2012
  • HKEY_CURRENT_USER\SOFTWARE\VB AND VBA PROGRAM SETTINGS\SRVID\ID\806IO5VL40 = SPREADBYTE
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\DONOTALLOWEXCEPTIONS = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\AUTHORIZEDAPPLICATIONS\LIST\%APPDATA%\AHDATQ.EXE = %APPDATA%\AHDATQ.exe:*:Enabled:Windows Messanger
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\AUTHORIZEDAPPLICATIONS\LIST\%TEMP%\TEMP_XQINMLCCIN\VBC.EXE = %TEMP%\temp_xQinMlcCIn\vbc.exe:*:Enabled:Windows Messanger

The applications attempted the following network connection(s):

  • 0.0.0.*:2834
  • hxxp://dl.dropbox.com/*****

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