Virus Profile: W32/Expiro!07A84DAE084D

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 8/23/2013
Date Added: 8/23/2013
Origin: Unknown
Length: 609792
Type: Virus
Subtype: Win32
DAT Required: 7176
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/Expiro
Length609792 bytes
MD507a84dae084d36143adc11a8d0ae89ec
SHA1fd103a83761dd24546ebf52642f0f24ec8bfa1fc


Other Common Detection Aliases

Company NamesDetection Names
ahnlabWin32/Expiro4.Gen
aviraW32/Expiro.CC Windows
KasperskyVirus.Win32.Expiro.ao
FortiNetW32/Generic!tr
SymantecSuspicious.Cloud.2
EsetWin32/Expiro.AQ
normanSuspicious.C3!genr
SophosW32/Expiro-H
Trend MicroPE_EXPIRO.JX

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


ActivitiesRisk Levels
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaW32/Expiro
McAfee SupportedW32/Expiro



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:

FD103A83761DD24546EBF52642F0F24EC8BFA1FC

The following files have been added to the system:

  • %WINDIR%\SYSTEM32\netdde.exe
  • %WINDIR%\Microsoft.NET\Framework\v2.0.50727\ngenrootstorelock.dat
  • %WINDIR%\SYSTEM32\msiexec.exe
  • %WINDIR%\SYSTEM32\vssvc.exe
  • %WINDIR%\SYSTEM32\smlogsvc.exe
  • %WINDIR%\SYSTEM32\dmadmin.exe
  • %WINDIR%\SYSTEM32\locator.exe
  • %WINDIR%\SYSTEM32\sessmgr.exe
  • %WINDIR%\microsoft.net\framework\v2.0.50727\mscorsvw.exe
  • %WINDIR%\SYSTEM32\alg.exe
  • %WINDIR%\microsoft.net\framework\v2.0.50727\aspnet_state.exe
  • %WINDIR%\SYSTEM32\tlntsvr.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\Source Engine\OSE.EXE
  • %WINDIR%\Microsoft.NET\Framework\v2.0.50727\ngenservicelock.dat
  • %WINDIR%\SYSTEM32\mnmsrvc.exe
  • %WINDIR%\SYSTEM32\scardsvr.exe
  • %WINDIR%\SYSTEM32\cisvc.exe
  • %WINDIR%\SYSTEM32\wbem\wmiapsrv.exe
  • %WINDIR%\SYSTEM32\imapi.exe
  • %WINDIR%\Microsoft.NET\Framework\v2.0.50727\ngen_service.lock

The following files have been changed:

  • %WINDIR%\microsoft.net\framework\v2.0.50727\ngen_service.log

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

  • %WINDIR%\SYSTEM32\alg.vir
  • %WINDIR%\SYSTEM32\scardsvr.vir
  • %WINDIR%\SYSTEM32\msiexec.vir
  • %WINDIR%\SYSTEM32\smlogsvc.vir
  • %WINDIR%\SYSTEM32\sessmgr.vir
  • %WINDIR%\SYSTEM32\imapi.vir
  • %COMMONPROGRAMFILES%\Microsoft Shared\Source Engine\ose.vir
  • %WINDIR%\SYSTEM32\tlntsvr.vir
  • %WINDIR%\SYSTEM32\locator.vir
  • %WINDIR%\SYSTEM32\mnmsrvc.vir
  • %WINDIR%\SYSTEM32\netdde.vir
  • %WINDIR%\Microsoft.NET\framework\v2.0.50727\mscorsvw.vir
  • %WINDIR%\SYSTEM32\dmadmin.vir
  • %WINDIR%\SYSTEM32\cisvc.vir
  • %WINDIR%\Microsoft.NET\framework\v2.0.50727\aspnet_state.vir
  • %WINDIR%\SYSTEM32\vssvc.vir
  • %WINDIR%\SYSTEM32\wbem\wmiapsrv.vir

The following registry elements have been created:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\SVC\S-1-5-21-1482476501-[private subnet]522115-500\

The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\.NETFRAMEWORK\V2.0.50727\NGENSERVICE\STATE\ACCUMULATEDWAITIDLETIME = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\SVC\S-1-5-21-1482476501-[private subnet]522115-500\ENABLENOTIFICATIONS = 0

   

Please use the following instructions for all supported versions of Windows:


1. Disable Windows System Restore. For instructions, please refer to: http://www.mcafee.com/us/downloads/free-tools/disabling-system-restore.aspx

2. Update your McAfee Anti-Virus product to the latest version (when possible), and ensure the latest DAT and Engine and any applicable EXTRA.DATs are installed.

3. Run a full system scan. (On-Demand Scan)

4. Reboot, as soon as it is convenient, to ensure all malicious components are removed.

   

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