W32/Wabot!C4F54489DB7​E

This page shows details and results of our analysis on the malware W32/Wabot!C4F54489DB7E

Overview

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.


Minimum DAT

7051 (2013-04-20)

Updated DAT

7051 (2013-04-20)

Minimum Engine

5400.1158

File Length

2144043

Description Added

2013-04-21

Description Modified

2013-04-21

Malware Proliferation

Characteristics

This is a Virus

File PropertiesProperty Values
McAfee DetectionW32/Wabot
Length2144043 bytes
MD5c4f54489db7e5d55b88616b84663f667
SHA13400b2c6efc83b6bcd97be6904f5ab73b2d4615e


Other Common Detection Aliases

Company NamesDetection Names
ahnlabWorm/Win32.IRCBot
avastWin32:Wabot
AVG (GriSoft)BackDoor.Wabot.A
aviraTR/Dldr.Delphi.Gen
KasperskyBackdoor.Win32.Wabot.a
Dr.WebTrojan.MulDrop2.11051
FortiNetW32/Wabot.A!tr
Microsoftbackdoor:win32/wabot.a
SymantecTrojan.Gen
normanW32/Delf.FHWF
SophosTroj/Luiha-M
Trend MicroBKDR_WABOT.SMIA
vba32Backdoor.Wabot

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


ActivitiesRisk Levels
Attempts to write to a memory location of a Windows system processHigh
Modifies winlogon configuration settings in registryMedium
Adds or modifies winlogon shell registry value. Could be used to launch a program on startup.Medium
Enumerates many system files and directories.Low
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaW32/Wabot
McAfee SupportedW32/Wabot



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:

3400B2C6EFC83B6BCD97BE6904F5AB73B2D4615E

The following files have been added to the system:

  • %WINDIR%\SYSTEM32\sIRC4.exe
  • %WINDIR%\SYSTEM32\xdccPrograms\goat.exe
  • %WINDIR%\SYSTEM32\xdccPrograms\CALC.exe
  • %WINDIR%\SYSTEM32\xdccPrograms\createcleansnapshot.exe
  • C:\marijuana.txt
  • %WINDIR%\SYSTEM32\xdccPrograms\Network Setup Wizard.exe

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

  • C:\rar.bat
  • %WINDIR%\SYSTEM32\xdccPrograms\Network Setup Wizard.rar

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\WINRAR\FILELIST\FILECOLUMNWIDTHS\MTIME = 100
  • HKEY_CURRENT_USER\SOFTWARE\WINRAR\FILELIST\FILECOLUMNWIDTHS\NAME = 120
  • HKEY_CURRENT_USER\SOFTWARE\WINRAR\FILELIST\FILECOLUMNWIDTHS\SIZE = 80
  • HKEY_CURRENT_USER\SOFTWARE\WINRAR\FILELIST\FILECOLUMNWIDTHS\TYPE = 120
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON\SHELL = Explorer.exe sIRC4.exe

Symptoms

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

Method 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.

Removal

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.

Variants