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Virus Profile: W32/Ramnit.a!0353DC349D07

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 3/10/2013
Date Added: 3/10/2013
Origin: Unknown
Length: 1338350
Type: Virus
Subtype: Win32
DAT Required: 7009
Removal Instructions
   
 
 
   

Description

Viruses are self-replicating. They are often spread by a network or by transmission to a removable medium such as a removable disk, writable CD, or USB drive. Viruses may also spread by infecting files on a network file system or a file system that is shared by another computer.

Indication of Infection

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

Methods of Infection

Viruses are self-replicating. They are often spread by a network or by transmission to a removable medium such as a removable disk, writable CD, or USB drive. Viruses may also spread by infecting files on a network file system or a file system that is shared by another computer.

   

Virus Characteristics

This is a Virus

File PropertiesProperty Values
McAfee DetectionW32/Ramnit.a
Length1338350 bytes
MD50353dc349d0751f9a4fd8c89389da949
SHA12f9d0680be4dcee6311eb2aa19ce14ec3f12c2d4


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:RmnDrp
AVG (GriSoft)Win32/Zbot.G
aviraW32/Ramnit.C
KasperskyVirus.Win32.Nimnul.a
BitDefenderWin32.Ramnit.N
clamavPUA.Win32.Packer.PecompactHeuris
Dr.WebWin32.Rmnet.4
F-ProtW32/Ramnit.E
FortiNetW32/Ramnit.C
MicrosoftHackTool:Win32/Patch
SymantecW32.Virut.CF
EsetWin32/Ramnit.H
normanW32/Ramnit.AS
risingWin32.Mgr.a
SophosW32/Ramnit-A
Trend MicroPE_RAMNIT.DEN
vba32Virus.Win32.Nimnul.b
V-BusterWin32.Nimnul.Gen.2
Vet (Computer Associates)Win32/Ramnit.C

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


ActivitiesRisk Levels
Attempts to load and execute remote code in explorer processHigh
Modifies Windows security center settings.High
Attempts to create Autorun.inf configuration files on accessible drives that instructs Windows operating systems to run a file when the disk is connected.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 instructions that detour an existing code path of a previously loaded process.High
Attempts to write to a memory location of a Windows system processHigh
Attempts to load and execute remote code in a previously loaded processMedium
Modifies Windows explorer file browser's Advanced settings. Sometimes used by malware to make executable files look like documents.Medium
Modifies Windows firewall settings.Medium
Enumerates many system files and directories.Low
Enumerates process listLow
Adds or modifies Internet Explorer cookiesLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaW32/Ramnit.a
McAfee SupportedW32/Ramnit.a



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:

2F9D0680BE4DCEE6311EB2AA19CE14EC3F12C2D4

The following files have been added to the system:

  • %USERPROFILE%\Start Menu\Programs\Startup\idfxauds.exe
  • %TEMP%\WER13.tmp.dir00\appcompat.txt
  • %PROGRAMFILES%\Internet Explorer\dmlconf.dat
  • %TEMP%\bassmod.dll
  • %TEMP%\WER12.tmp
  • C:\ybdsq.exe
  • %TEMP%\WER12.tmp.dir00\appcompat.txt
  • C:\autorun.inf
  • %TEMP%\Visitor -BRK-.FON
  • C:\Documents and Settings\ADMINI~1mgr.exe
  • %PROGRAMFILES%\awnlprtc\idfxauds.exe
  • %TEMP%\WER13.tmp

The following files have been changed:

  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\Legal\ENU\license.html
  • %USERPROFILE%\My Documents\Users html Document.html
  • %USERPROFILE%\Desktop\Users html Document.htm
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\BIBUtils.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\ACE.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AdobeLinguistic.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AdobeXMP.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\logsession.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\Acrofx32.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\BIB.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\authplay.dll
  • C:\Users html Document.html
  • c:\Users exe File.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\pe.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\LogTransport2.exe
  • %WINDIR%\system.ini
  • C:\Users html Document.htm
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\JP2KLib.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\icucnv36.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\ccme_base.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AXSLE.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\ahclient.dll
  • %PROGRAMFILES%\internet explorer\iexplore.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\LogTransport2.dll
  • c:\Users exe File.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\CoolType.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\Onix32.dll
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\EXCEL.EXE
  • %WINDIR%\SYSTEM32\dwwin.exe
  • %USERPROFILE%\Desktop\Users html Document.html
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AGM.dll
  • %USERPROFILE%\My Documents\Users html Document.htm
  • %WINDIR%\SYSTEM32\notepad.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AXE8SharedExpat.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\cryptocme2.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\sqlite.dll
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\WINWORD.EXE
  • %PROGRAMFILES%\winrar\winrar.exe

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

  • %PROGRAMFILES%\awnlprtc\pxD.tmp
  • %WINDIR%\SYSTEM32\drivers\ghmmj.sys
  • %TEMP%\nwkbh.exe
  • %TEMP%\~TMB.tmp
  • %TEMP%\~TMA.tmp
  • %TEMP%\~TM8.tmp
  • %TEMP%\npxpcu.exe
  • %TEMP%\~TM9.tmp

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\
  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\-993627007\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SESSIONINFORMATION\PROGRAMCOUNT = 3
  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\A1_0 = 3413010764
  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\A2_0 = 9141
  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\A3_0 = 17001001
  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\-993627007\[private subnet] = 0
  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\-993627007\-1514827516 = 35
  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\-993627007\1768776769 = 152
  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\-993627007\2022726022 = 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
  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\-993627007\253949253 = 383
  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\-993627007\-503464505 = 26CEFB056C4C612B18DF8A4E39AD3E086BC14A679A0C16609597EAFA4EF436B86480FE516A315D6A51F28DA8CC0B11C7B9B304C866869787A103BDFE12342ED26176866CF93A99E8E0CDB62E08DCA2F8E5A923A228BAEAE68DD518B021F8E826E6A8FDBA0704B9328FCAEA4242FC6AF4104D60B896922EC0CEDBAF6F67E08E9F
  • HKEY_CURRENT_USER\SOFTWARE\AASPPAPMMXKVS\-993627007\-757413758 = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\ADVANCED\HIDDEN = 2
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\ANTIVIRUSDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\ANTIVIRUSOVERRIDE = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\FIREWALLDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\FIREWALLOVERRIDE = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\UACDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\UPDATESDISABLENOTIFY = 1
  • 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\UACDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\SVC\UPDATESDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON\USERINIT = %WINDIR%\SYSTEM32\userinit.exe,,%PROGRAMFILES%\awnlprtc\idfxauds.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM\ENABLELUA = 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\ENABLEFIREWALL = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\AUTHORIZEDAPPLICATIONS\LIST\%TEMP%\2F9D0680BE4DCEE6311EB2AA19CE14EC3F12C2D4 = %TEMP%\2F9D0680BE4DCEE6311EB2AA19CE14EC3F12C2D4:*:Enabled:ipsec

The applications attempted the following network connection(s):

  • 66.228.49.**:443
  • 173.194.33.*: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.