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Virus Profile: Generic.bfr!gu!A662F053567F

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 11/15/2012
Date Added: 11/15/2012
Origin: Unknown
Length: 500912
Type: Trojan
Subtype: -
DAT Required: 6896
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.bfr!gu
Length500912 bytes
MD5a662f053567f248a39ba96bcd2ce59ad
SHA12b25edb4acc129b53ac23271f672e3f2361a2311


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Esfury-N
AVG (GriSoft)SHeur4.AKQU
aviraTR/Killav.A.119
BitDefenderTrojan.Generic.KDV.684479
clamavPUA.Win32.Packer.MingwGcc-2
Dr.WebWin32.HLLW.Autoruner1.24454
FortiNetW32/Injector.VMC!tr
Microsofttrojan:win32/killav
SymantecTrojan.Gen
EsetWin32/AutoRun.VB.XW worm
normanW32/Troj_Generic.EDUSR
SophosMal/Generic-L
Trend MicroTROJ_SPNR.30K012
vba32Trojan.Jorik.VBNA.aq
V-BusterTrojan.VBNA!Vv8BMiU1a5o (trojan)

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


ActivitiesRisk Levels
Attempts to modify the hosts file. This could be used to map hostnames different IP addresses redirecting traffic to an alternate location.High
Modifies Windows security center settings.High
Adds or modifies system policies. Could be used to prevent the or detour the use of common system tools.High
Attempts to write to a memory location of a protected process.High
Attempts to write to a memory location of a Windows system processHigh
Attempts to write to a memory location where winlogon residesHigh
Attempts to write to a memory location of a previously loaded process.Medium
Modifies Windows firewall settings.Medium
Enumerates many system files and directories.Low
Enumerates process listLow
Process attempts to call itself recursivelyLow
Adds or modifies Internet Explorer cookiesLow


McAfee ScansScan Detections
McAfee BetaGeneric.bfr!gu
McAfee SupportedGeneric.bfr!gu



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:

2b25edb4acc129b53ac23271f672e3f2361a2311

The following files have been added to the system:

  • %USERPROFILE%\Start Menu\Fax y Escáner de Windows.exe
  • %USERPROFILE%\Start Menu\Programs\Startup\Windows Anytime Upgrade.exe
  • %USERPROFILE%\27F6471627473796E696D64614\winlogon.exe
  • %ALLUSERSPROFILE%\Start Menu\Windows DVD Maker.exe
  • %ALLUSERSPROFILE%\Start Menu\Programs\Windows Media Center.exe
  • %ALLUSERSPROFILE%\Start Menu\programs\startup\Windows Update.exe
  • %USERPROFILE%\Start Menu\Programs\Internet Explorer.exe
  • %USERPROFILE%\27F6471627473796E696D64614\F8C097FF99808C9C

The following files were temporarily written to disk then later removed:

  • %WINDIR%\SYSTEM32\drivers\etc\hosts

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\INTERNET EXPLORER\DOWNLOAD\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\APPCOMPATFLAGS\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\APPCOMPATFLAGS\LAYERS\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\ASSOCIATIONS\
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\APPCOMPATFLAGS\
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\APPCOMPATFLAGS\LAYERS\
  • HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\WINDOWS\WINDOWSUPDATE\
  • HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\WINDOWS\WINDOWSUPDATE\AU\
  • HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\WINDOWSFIREWALL\
  • HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\WINDOWSFIREWALL\DOMAINPROFILE\
  • HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\WINDOWSFIREWALL\STANDARDPROFILE\
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\AUTHORIZEDAPPLICATIONS\
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\AUTHORIZEDAPPLICATIONS\LIST\
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WSCSVC\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\INTERNET EXPLORER\DOWNLOAD\CHECKEXESIGNATURES = no
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\INTERNET EXPLORER\DOWNLOAD\RUNINVALIDSIGNATURES = 1
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\ASSOCIATIONS\LOWRISKFILETYPES = .exe
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER\HIDESCAHEALTH = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\ANTISPYWAREDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\ANTIVIRUSDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\ANTIVIRUSOVERRIDE = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\AUTOUPDATEDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\CVAL = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\FIREWALLDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\INTERNETSETTINGSDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\UACDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\MONITORING\DISABLEMONITORING = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\MONITORING\SYMANTECANTIVIRUS\DISABLEMONITORING = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\MONITORING\SYMANTECFIREWALL\DISABLEMONITORING = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\SVC\ANTISPYWAREOVERRIDE = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\SVC\ANTIVIRUSDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\SVC\ANTIVIRUSOVERRIDE = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\SVC\FIREWALLDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\SVC\FIREWALLOVERRIDE = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\SVC\FIRSTRUNDISABLED = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\SVC\UACDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\SVC\UPDATESDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER\HIDESCAHEALTH = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM\CONSENTPROMPTBEHAVIORADMIN = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM\CONSENTPROMPTBEHAVIORUSER = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM\ENABLELUA = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM\PROMPTONSECUREDESKTOP = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\WINDOWS\WINDOWSUPDATE\AU\NOAUTOREBOOTWITHLOGGEDONUSERS = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\WINDOWSFIREWALL\DOMAINPROFILE\ENABLEFIREWALL = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\WINDOWSFIREWALL\STANDARDPROFILE\ENABLEFIREWALL = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\DOMAINPROFILE\DISABLENOTIFICATIONS = 1
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\DOMAINPROFILE\DONOTALLOWEXCEPTIONS = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\DOMAINPROFILE\ENABLEFIREWALL = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\DISABLENOTIFICATIONS = 1
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\DONOTALLOWEXCEPTIONS = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\AUTHORIZEDAPPLICATIONS\LIST\%USERPROFILE%\27F6471627473796E696D64614\WINLOGON.EXE = %USERPROFILE%\27F6471627473796E696D64614\winlogon.exe:*:Enabled:@[Domain Removed],-70554750
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WSCSVC\START = 4

The applications attempted the following network connection(s):

  • 204.93.210.**:80
  • 173.192.225.***:80
  • 67.202.94.**:80
  • hxxp://g84ima8fz3lk1h0vquxmhw00izu5o1.ipcheker.com/

   

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.