RDN/Generic BackDoor!tk!091EF9943​D8A

This page shows details and results of our analysis on the malware RDN/Generic BackDoor!tk!091EF9943D8A

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

7193 (2013-09-09)

Updated DAT

7193 (2013-09-09)

Minimum Engine

5600.1067

File Length

208896

Description Added

2013-09-12

Description Modified

2013-09-12

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionRDN/Generic BackDoor!tk
Length208896 bytes
MD5091ef9943d8ab416d3796d005440aa6c
SHA1b709db4ea902958a4e2ebc74321e9d488665b072


Other Common Detection Aliases

Company NamesDetection Names
MicrosoftBackdoor:MSIL/Bladabindi
EsetMSIL/Bladabindi.L

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


ActivitiesRisk Levels
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!tk
McAfee SupportedRDN/Generic BackDoor!tk



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:

B709DB4EA902958A4E2EBC74321E9D488665B072

The following files have been added to the system:

  • %USERPROFILE%\Start Menu\Programs\Startup\14b5261d03299445dcb94acdab83c33c.exe
  • %TEMP%\crack.exe
  • %TEMP%\crack.exe.tmp

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\14B5261D03299445DCB94ACDAB83C33C\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\ENVIRONMENT\SEE_MASK_NOZONECHECKS = 49
  • HKEY_CURRENT_USER\SOFTWARE\14B5261D03299445DCB94ACDAB83C33C\US = 64
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\14B5261D03299445DCB94ACDAB83C33C = "%TEMP%\crack.exe" ..
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\14B5261D03299445DCB94ACDAB83C33C = "%TEMP%\crack.exe" ..

The applications attempted the following network connection(s):

  • 79.124.66.***:4545

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