RDN/Generic BackDoor!tt!B1220AFCC​237

This page shows details and results of our analysis on the malware RDN/Generic BackDoor!tt!B1220AFCC237

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

7212 (2013-09-28)

Updated DAT

7212 (2013-09-28)

Minimum Engine

5600.1067

File Length

137216

Description Added

2013-09-29

Description Modified

2013-09-29

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionRDN/Generic BackDoor!tt
Length137216 bytes
MD5b1220afcc237f62e9923b86f9afbe61e
SHA17adf70038179e83acdcbacd3c961443468013426


Other Common Detection Aliases

Company NamesDetection Names
EMSI SoftwareGen:Variant.Barys.18214 (B)
avastMSIL:Bladabindi-GB
AVG (GriSoft)Generic32.QLW
aviraTR/Barys.18214.155
KasperskyTrojan.MSIL.Disfa.byvu
BitDefenderGen:Variant.Barys.18214
Dr.WebWin32.HLLW.Autoruner.25074
FortiNetW32/Disfa.BYVU!tr
MicrosoftBackdoor:MSIL/Bladabindi
SymantecTrojan.Gen.2
EsetMSIL/Packed.NetShrink.B
normandotnet/NetShrink.I
V-BusterTrojan.Disfa!Xw6rKgtpYuM (trojan)

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!tt
McAfee SupportedRDN/Generic BackDoor!tt



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:

7ADF70038179E83ACDCBACD3C961443468013426

The following files have been added to the system:

  • C:\.tmp
  • %TEMP%\software.exe
  • %USERPROFILE%\Start Menu\Programs\Startup\de6627fc37d0bb1d1450d898163e1f65.exe

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\DE6627FC37D0BB1D1450D898163E1F65\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\ENVIRONMENT\SEE_MASK_NOZONECHECKS = 49
  • HKEY_CURRENT_USER\SOFTWARE\DE6627FC37D0BB1D1450D898163E1F65\US = 64
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\DE6627FC37D0BB1D1450D898163E1F65 = "%TEMP%\software.exe" ..
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\DE6627FC37D0BB1D1450D898163E1F65 = "%TEMP%\software.exe" ..

The applications attempted the following network connection(s):

  • 197.205.94.**:1177

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