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Virus Profile: W32/Ramnit.j!CFA041F17A33

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 11/18/2012
Date Added: 11/18/2012
Origin: Unknown
Length: 124896
Type: Virus
Subtype: Win32
DAT Required: 6899
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.J
Length124896 bytes
MD5cfa041f17a33965e69542c102a28859a
SHA1e7dc8a3bf68f51615f99b0cd8ffe9d45d29757c8


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Dropper-LYT [Drp]
AVG (GriSoft)SHeur4.ARXU (Trojan horse)
aviraTR/Kazy.104134.2
BitDefenderGen:Variant.Symmi.4870
FortiNetW32/Azbreg.IH!tr.bdr
EsetWin32/Ramnit.AK.Gen virus (variant)
normanW32/Troj_Generic.FICHK (trojan)
pandaTrj/Genetic.gen
SophosMal/Azber-A
Trend MicroPE_RAMNIT.GUD-O

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


ActivitiesRisk Levels
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
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 BetaW32/Ramnit.J
McAfee SupportedW32/Ramnit.J



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:

e7dc8a3bf68f51615f99b0cd8ffe9d45d29757c8

The following files have been added to the system:

  • %USERPROFILE%\Local Settings\Application Data\kumdtqpo.log
  • %USERPROFILE%\Start Menu\Programs\Startup\ibswfuqu.exe
  • %USERPROFILE%\Local Settings\Application Data\auekuqvf\ibswfuqu.exe
  • %USERPROFILE%\Local Settings\Application Data\jeipbtin.log
  • %TEMP%\agqrkwpb.exe
  • %ALLUSERSPROFILE%\Application Data\winnvips.log

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

  • %TEMP%\pmteirjh.sys
  • %USERPROFILE%\Local Settings\Application Data\auekuqvf\pxD.tmp

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\IBSWFUQU = %USERPROFILE%\Local Settings\Application Data\auekuqvf\ibswfuqu.exe
  • 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,,%USERPROFILE%\Local Settings\Application Data\auekuqvf\ibswfuqu.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\WUAUSERV\START = 4

The applications attempted the following network connection(s):

  • 217.23.11.***: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.