W32/Expiro.gen.h!22A7​BD7553F4

This page shows details and results of our analysis on the malware W32/Expiro.gen.h!22A7BD7553F4

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

7055 (2013-04-24)

Updated DAT

7055 (2013-04-24)

Minimum Engine

5400.1158

File Length

189440

Description Added

2013-04-25

Description Modified

2013-04-25

Malware Proliferation

Characteristics

This is a Virus

File PropertiesProperty Values
McAfee DetectionW32/Expiro.gen.h
Length189440 bytes
MD522a7bd7553f4038bbe2bfc2f1f81990e
SHA16a9060e9e3a330f3876bfa303d3378f9f8fd0bb8


Other Common Detection Aliases

Company NamesDetection Names
ahnlabWin32/Expiro2.Gen
aviraW32/Expiro.G Windows
KasperskyVirus.Win32.Expiro.w
Dr.WebWin32.Expiro.26
FortiNetW32/Expiro.W
Microsoftvirus:win32/expiro.u
SymantecW32.Xpiro.D
SophosW32/Expiro-H
Trend MicroPE_EXPIRO.RAP
vba32Virus.Expiro.xc

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


ActivitiesRisk Levels
Enumerates many system files and directories.Low
Adds or modifies Internet Explorer cookiesLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaW32/Expiro.gen.h
McAfee SupportedW32/Expiro.gen.h



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:

6A9060E9E3A330F3876BFA303D3378F9F8FD0BB8

The following files have been added to the system:

  • %WINDIR%\SYSTEM32\dllhost.exe
  • %WINDIR%\SYSTEM32\ups.exe
  • %WINDIR%\SYSTEM32\magnify.exe
  • %WINDIR%\SYSTEM32\wbem\wmiapsrv.exe
  • %WINDIR%\SYSTEM32\vssvc.exe
  • %PROGRAMFILES%\outlook express\wab.exe
  • %WINDIR%\SYSTEM32\mobsync.exe
  • %WINDIR%\SYSTEM32\scardsvr.exe
  • %WINDIR%\SYSTEM32\tourstart.exe
  • %WINDIR%\SYSTEM32\sessmgr.exe
  • %PROGRAMFILES%\windows media player\wmplayer.exe
  • %WINDIR%\SYSTEM32\rcimlby.exe
  • %WINDIR%\SYSTEM32\narrator.exe
  • %PROGRAMFILES%\outlook express\msimn.exe
  • %WINDIR%\SYSTEM32\msdtc.exe
  • %WINDIR%\SYSTEM32\alg.exe
  • %WINDIR%\SYSTEM32\utilman.exe
  • %WINDIR%\SYSTEM32\tlntsvr.exe
  • %USERPROFILE%\Local Settings\Application Data\wsr18zt32.dll
  • %WINDIR%\SYSTEM32\locator.exe
  • %WINDIR%\SYSTEM32\rsvp.exe
  • %WINDIR%\SYSTEM32\notepad.exe
  • %WINDIR%\SYSTEM32\mnmsrvc.exe
  • %WINDIR%\SYSTEM32\clipsrv.exe
  • %WINDIR%\SYSTEM32\msiexec.exe
  • %WINDIR%\SYSTEM32\smlogsvc.exe
  • %WINDIR%\SYSTEM32\cisvc.exe
  • %WINDIR%\SYSTEM32\osk.exe

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

  • %WINDIR%\SYSTEM32\alg.vir
  • %WINDIR%\SYSTEM32\osk.vir
  • %PROGRAMFILES%\Windows Media Player\wmplayer.vir
  • %WINDIR%\SYSTEM32\dmadmin.vir
  • %WINDIR%\SYSTEM32\scardsvr.vir
  • %WINDIR%\SYSTEM32\narrator.vir
  • %WINDIR%\SYSTEM32\msiexec.vir
  • %WINDIR%\SYSTEM32\clipsrv.vir
  • %WINDIR%\SYSTEM32\smlogsvc.vir
  • %WINDIR%\SYSTEM32\dllhost.vir
  • %WINDIR%\SYSTEM32\notepad.vir
  • %WINDIR%\SYSTEM32\tourstart.vir
  • %PROGRAMFILES%\Outlook Express\wab.vir
  • %WINDIR%\SYSTEM32\wbem\wmiapsrv.vir
  • %WINDIR%\SYSTEM32\imapi.vir
  • %PROGRAMFILES%\Outlook Express\msimn.vir
  • %WINDIR%\SYSTEM32\cisvc.vir
  • %WINDIR%\SYSTEM32\magnify.vir
  • %WINDIR%\SYSTEM32\locator.vir
  • %WINDIR%\SYSTEM32\tlntsvr.vir
  • %WINDIR%\SYSTEM32\msdtc.vir
  • %WINDIR%\SYSTEM32\mnmsrvc.vir
  • %WINDIR%\SYSTEM32\mobsync.vir
  • %WINDIR%\SYSTEM32\utilman.vir
  • %WINDIR%\SYSTEM32\rsvp.vir
  • %WINDIR%\SYSTEM32\vssvc.vir
  • %WINDIR%\SYSTEM32\ups.vir
  • %WINDIR%\SYSTEM32\sessmgr.vir
  • %WINDIR%\SYSTEM32\rcimlby.vir

The following registry elements have been created:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\CLIPBOOK SERVER\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONES\0\1609 = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONES\0\2103 = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONES\1\1609 = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONES\1\2103 = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONES\2\1609 = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONES\2\2103 = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONES\3\1609 = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONES\3\2103 = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONES\4\1609 = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INTERNET SETTINGS\ZONES\4\2103 = 0

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