Virus Profile: Generic.bfr!8F4176FE549C

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 2/24/2013
Date Added: 2/24/2013
Origin: Unknown
Length: 114688
Type: Trojan
Subtype: -
DAT Required: 6994
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
Length114688 bytes
MD58f4176fe549c34f9d706effad781b1ea
SHA1990c9636ca0c865c2a0b04773300b9aa1fa2ab95


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Malware-gen
AVG (GriSoft)SHeur4.BBJA (Trojan horse)
aviraTR/Crypt.ZPACK.Gen
KasperskyTrojan-Spy.Win32.Zbot.jdbm
BitDefenderGen:Variant.Symmi.6053
clamavWin.Trojan.Agent-197810
Dr.WebTrojan.DownLoader8.10489
FortiNetPossibleThreat
Microsofttrojan:win32/tibs
normanTroj_Generic.HPOFJ
pandaTrj/Genetic.gen
Trend MicroTROJ_GEN.RC1H1BI
V-BusterTrojanSpy.Zbot!o15urzNq+HE (trojan)

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


ActivitiesRisk Levels
Attempts to add an event to the Windows task scheduler. This could be used to launch programs at pre-defined intervals.Low
Enumerates many system files and directories.Low
Process attempts to call itself recursivelyLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaGeneric.bfr
McAfee SupportedGeneric.bfr



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:

990C9636CA0C865C2A0B04773300B9AA1FA2AB95

The following files have been added to the system:

  • %APPDATA%\Exomerx\raucnou.exe
  • %WINDIR%\SYSTEM32\winsec.exe
  • %WINDIR%\Tasks\Security Center Update - 3615192205.job

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

  • %TEMP%\tmp75922bd5.bat

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\405515046 = "%APPDATA%\Exomerx\raucnou.exe"
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\405515046 = "%APPDATA%\Exomerx\raucnou.exe"
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\CONTROL\SESSION MANAGER\SUBSYSTEMS\WINDOWS = %WINDIR%\SYSTEM32\csrss.exe ObjectDirectory=\Windows SharedSection=[private subnet],512 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ProfileControl=Off MaxRequestThreads=16

   

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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