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Virus Profile: Generic Dropper.zb!5A26E318CDFC

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 6/21/2012
Date Added: 6/21/2012
Origin: Unknown
Length: 489224
Type: Trojan
Subtype: -
DAT Required: 6749
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 DetectionGeneric Dropper.zb
Length489224 bytes
MD55a26e318cdfc6750e09d21d089acfc79
SHA14cf708d2bb27a02d9cfc8080f5d5b86f5b439645


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Hiloti-IX
AVG (GriSoft)SHeur4.AFT
aviraTR/Dropper.Gen5
KasperskyTrojan-Downloader.Win32.Mufanom.bqfm
BitDefenderTrojan.Generic.KDV.351966
clamavTrojan.Downloader-118892
Dr.WebTrojan.Packed.21911
F-ProtW32/Hiloti.AC
FortiNetW32/Dropper.ZB!tr
MicrosoftTrojan:Win32/Agent.JY
SymantecTrojan.Gen
EsetWin32/TrojanDropper.Agent.PMM trojan
normanAlureon.ANL
pandaTrj/Agent.GZU
risingTrojan.Win32.FakeFolder.bl
SophosW32/Autorun-BTA
Trend MicroTROJ_AG.4B799320
vba32TrojanDropper.Agent.pmm
V-BusterTrojan.DR.Agent!SM3TcX/Su8A (trojan)
Vet (Computer Associates)Win32/Otran.BC

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
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaGeneric Dropper.zb
McAfee SupportedGeneric Dropper.zb



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:

4cf708d2bb27a02d9cfc8080f5d5b86f5b439645

The following files have been added to the system:

  • %USERPROFILE%\xot.exe
  • %USERPROFILE%\T3K9ZAW7.exe
  • %TEMP%\15.tmp
  • %WINDIR%\nentanex.dll
  • %TEMP%\14.tmp
  • %USERPROFILE%\mlniul.exe
The following files were temporarily written to disk then later removed:

  • %TEMP%\6.tmp
The following registry elements have been created:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\BDITIHIKILUG\
The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\SBAFOBEREBE = rundll32.exe "%WINDIR%\nentanex.dll",Startup
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\BDITIHIKILUG\GREKUNODIJIPAT = 201
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\BDITIHIKILUG\RJOGUZAG = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\BDITIHIKILUG\SLUZUBOZIDI = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\CONTROL\SESSION MANAGER\PENDINGFILERENAMEOPERATIONS = \??\%TEMP%\14.tmp
The applications attempted the following network connection(s):

  • 95.143.193.***:80
   

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.