Virus Profile: Generic VB.jf!AE567E5B293B

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 2/12/2013
Date Added: 2/12/2013
Origin: Unknown
Length: 90112
Type: Trojan
Subtype: -
DAT Required: 6984
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 VB.jf
Length90112 bytes
MD5ae567e5b293b06f0d180215d5bdf15ca
SHA1fc10592ad3ec7baaca608adfc814e4b79d06faea


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:VB-ADPW
AVG (GriSoft)Worm/VB.14.DL
aviraTR/Dropper.Gen
BitDefenderGen:Heur.VB.Agent.3
clamavWin.Trojan.Agent-19124
Dr.WebWin32.HLLW.Autoruner1.18501
FortiNetW32/VBObfus.AU!tr
MicrosoftWorm:Win32/Vobfus.FX
SymantecW32.Changeup!gen20
EsetWin32/Pronny.BI worm
normanW32/Vobfus.AMHZ
pandaGeneric Trojan
risingWorm.Win32.VobfusEx.b
SophosMal/VBObfus-B
Trend MicroWORM_VOBFUS.SMPI
vba32Trojan.Jorik.Vobfus.ezhk
V-BusterTrojan.VBGent.Gen.1615 (trojan)
Vet (Computer Associates)Win32/Vobfus.AJU

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


ActivitiesRisk Levels
Modifies Windows explorer file browser's Advanced settings. Sometimes used by malware to make executable files look like documents.Medium
Enumerates many system files and directories.Low
Enumerates process listLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaGeneric VB.jf
McAfee SupportedGeneric VB.jf



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:

FC10592AD3EC7BAACA608ADFC814E4B79D06FAEA

The following files have been added to the system:

  • %USERPROFILE%\suagu.exe

The following registry elements have been created:

  • HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\WINDOWS\WINDOWSUPDATE\
  • HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\WINDOWS\WINDOWSUPDATE\AU\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\ADVANCED\SHOWSUPERHIDDEN = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\SUAGU = %USERPROFILE%\suagu.exe /f
  • HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\WINDOWS\WINDOWSUPDATE\AU\NOAUTOUPDATE = 1

The applications attempted the following network connection(s):

  • 255.255.255.***:8003
  • 61.160.247.***:8003

   

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.

   

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