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Virus Profile: BackDoor-DRW!BD093FBD926B

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 3/19/2013
Date Added: 3/19/2013
Origin: Unknown
Length: 320250
Type: Trojan
Subtype: Remote Access
DAT Required: 7019
Removal Instructions
   
 
 
   

Description

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.

Indication of Infection

This symptoms of this detection are the files, registry, and network communication referenced in the characteristics section.

Methods 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.

   

Virus Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionBackDoor-DRW
Length320250 bytes
MD5bd093fbd926ba1d6003722bce8286462
SHA1e857fd5b0ea3f6a4bb263bc592d877fae32c5507


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Small-JVY
AVG (GriSoft)SHeur.AZDP
aviraADWARE/Adware.Gen
KasperskyTrojan-Downloader.Win32.Agent.lyd
BitDefenderTrojan.Crypt.ai
clamavWorm.Socks-11
Dr.WebTrojan.DownLoader.64103
F-ProtW32/Socks.A.gen!Eldorado
FortiNetW32/Kryptik.JWE!tr
Microsoftbackdoor:win32/koceg.gen!a
SymantecSecurityRisk.Downldr
EsetWin32/Kryptik.JWE trojan (variant)
normanW32/Socks.FDQ
pandaTrj/Genetic.gen
risingTrojan.Agent!4DB5
Trend MicroWORM_SOCKS.EC
V-BusterTrojan.DL.Agent!LhmGPhnhcag (trojan)
Vet (Computer Associates)Win32/Korced!generic

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


ActivitiesRisk Levels
Attempts to download an executable file from the web.Medium
Adds or modifies winlogon userinit registry value. Could be used to launch a program on startup.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
Enumerates process listLow
Process attempts to call itself recursivelyLow
Adds or modifies Internet Explorer cookiesLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaBackDoor-DRW
McAfee SupportedBackDoor-DRW



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:

E857FD5B0EA3F6A4BB263BC592D877FAE32C5507

The following files have been added to the system:

  • %TEMP%\771.tmp
  • %WINDIR%\SYSTEM32\drivers\ctfmon.exe
  • %USERPROFILE%\Local Settings\Application Data\spool.exe

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\AUTOLOAD = %USERPROFILE%\Local Settings\Application Data\spool.exe
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\NTUSER = %WINDIR%\SYSTEM32\drivers\ctfmon.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON\SHELL = Explorer.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON\UIHOST = logonui.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON\USERINIT = %WINDIR%\SYSTEM32\userinit.exe,
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\AUTOLOAD = %USERPROFILE%\Local Settings\Application Data\spool.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\NTUSER = %WINDIR%\SYSTEM32\drivers\ctfmon.exe
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SCHEDULE\IMAGEPATH = %WINDIR%\SYSTEM32\drivers\ctfmon.exe

The applications attempted the following network connection(s):

  • 199.101.134.**:80
  • 216.172.154.**:80
  • 50.117.116.***:80
  • hxxp://vipxxxzone.com/css/*****

   

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.