Virus Profile: BackDoor-AWQ!C1F81B218488

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 5/9/2013
Date Added: 5/9/2013
Origin: Unknown
Length: 983528
Type: Trojan
Subtype: Remote Access
DAT Required: 7069
Removal Instructions
   
 
 
   

Description

This is a Trojan detection. Unlike viruses, Trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include e-mail, malicious or hacked Web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Indication of Infection

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

Methods of Infection

Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, e-mail, etc.

   

Virus Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionBackDoor-AWQ
Length983528 bytes
MD5c1f81b218488bc90729261941d164930
SHA18b4c0749416d6c2fd7f600f8fc789d3daf415537


Other Common Detection Aliases

Company NamesDetection Names
ahnlabTrojan/Win32.Bifrose
AVG (GriSoft)Fat-Obfuscated
aviraTR/Dropper.Gen
KasperskyBackdoor.Win32.Hupigon.mxzs
BitDefenderMemScan:Backdoor.Hupigon.AZDK
clamavSuspect.Trojan.Generic.FD-4
Dr.WebTrojan.Click2.39056
F-ProtW32/Onlinegames.BHW
FortiNetW32/Redosdru.ID!tr
Microsoftbackdoor:win32/hupigon.fi
risingTrojan.Win32.Generic.122DC2DB
Trend MicroBKDR_NETHAN.SME
vba32Backdoor.Hupigon
Vet (Computer Associates)Win32/PcClient.QI

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


ActivitiesRisk Levels
Enumerates many system files and directories.Low
Process attempts to call itself recursivelyLow
Adds or modifies Internet Explorer cookiesLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaBackDoor-AWQ
McAfee SupportedBackDoor-AWQ



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:

8B4C0749416D6C2FD7F600F8FC789D3DAF415537

The following files have been added to the system:

  • %TEMP%\111.EXE
  • %TEMP%\~DF36BC.tmp
  • %APPDATA%\Microsoft\Office\Recent\±ýÅè³µ±¨¼Û.xls.LNK
  • %TEMP%\±ýÅè³µ±¨¼Û.xls
  • %APPDATA%\Microsoft\Office\Recent\Temp.LNK

The following files have been changed:

  • %APPDATA%\Microsoft\Office\Recent\index.dat

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

  • %TEMP%\nscC.tmp

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\11.0\COMMON\REVIEWCYCLE\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\11.0\EXCEL\RESILIENCY\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\11.0\EXCEL\RESILIENCY\DOCUMENTRECOVERY\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\11.0\EXCEL\RESILIENCY\DOCUMENTRECOVERY\3AC5F\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\11.0\EXCEL\RESILIENCY\DOCUMENTRECOVERY\3B3D1\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\11.0\COMMON\INSTALLROOT\UE\{901[private subnet]-11D3-8CFE-0150048383C9} = [binary data]
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\11.0\COMMON\REVIEWCYCLE\REVIEWTOKEN = {A5E64DFB-C71C-4623-A6CB-B17D7269F127}
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\11.0\EXCEL\MTTT = [binary data]
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\11.0\EXCEL\RESILIENCY\DOCUMENTRECOVERY\3AC5F\3AC6F
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\11.0\EXCEL\RESILIENCY\DOCUMENTRECOVERY\3B3D1\3B3D1 = [binary data]
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\COMMON\ASSISTANT\CURRASSTSTATE = 38
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INSTALLER\USERDATA\S-1-5-18\PRODUCTS\90401[private subnet]C8EF[private subnet]C\EXCELFILES = [private subnet]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\INSTALLER\USERDATA\S-1-5-18\PRODUCTS\90401[private subnet]C8EF[private subnet]C\PRODUCTFILES = [private subnet]

   

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.

   

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