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Virus Profile: Generic.bfr!2451FDBB50C6

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 9/13/2013
Date Added: 9/13/2013
Origin: Unknown
Length: 376248
Type: Trojan
Subtype: -
DAT Required: 7196
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 DetectionGeneric.bfr
Length376248 bytes
MD52451fdbb50c69650f709b9bf88a3cae5
SHA156040b69caa8591565ab3268bd79838d1f856936


Other Common Detection Aliases

Company NamesDetection Names
avastNSIS:Muldrop-A [Drp]
AVG (GriSoft)AdInstaller.DirectDownloader
aviraADWARE/Adware.Gen6
clamavWin.Adware.Directdownloader-3
Dr.WebTrojan.MulDrop4.10196
FortiNetW32/DirectDownloader.E!tr
EsetWin32/DirectDownloader
SophosMal/Generic-S
Trend MicroTROJ_DIRECTDOWNLOADER_BK083A18.UVPC

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


McAfee ScansScan Detections
McAfee BetaGeneric.bfr
McAfee SupportedGeneric.bfr



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:

56040B69CAA8591565AB3268BD79838D1F856936

The following files have been added to the system:

  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\downloaderDDLR.exe
  • %TEMP%\nso75.tmp\NSISdl.dll
  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\downloaderOFFER1.exe
  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\downloaderSTUB.exe
  • %TEMP%\nss73.tmp\NSISdl.dll
  • %TEMP%\nsb71.tmp\NSISdl.dll
  • %TEMP%\nsi74.tmp\NSISdl.dll
  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\preinstaller.exe
  • %TEMP%\nsk65.tmp\NSISdl.dll
  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\downloaderOFFER2.exe
  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\downloaderOFFER0.exe
  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\stub.exe
  • %TEMP%\nseE8.tmp\Processes.dll
  • %TEMP%\nsd11.tmp
  • %TEMP%\nshE7.tmp\NSISdl.dll

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

  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\volcano.exe
  • %TEMP%\nsfE6.tmp
  • %TEMP%\nsz66.tmp
  • %TEMP%\nsx10.tmp
  • %TEMP%\nsb6F.tmp
  • %TEMP%\nsu60.tmp
  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\BitAcceleratorDDLRinstaller.exe
  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\updater.exe
  • %TEMP%\nso75.tmp
  • %TEMP%\nsk65.tmp
  • %TEMP%\nsb70.tmp
  • %TEMP%\nsi74.tmp
  • %TEMP%\nseE8.tmp
  • %TEMP%\nsh72.tmp
  • %TEMP%\nsb71.tmp
  • %TEMP%\nshE7.tmp
  • %TEMP%\nss54.tmp
  • %TEMP%\nsz66.tmp\NSISdl.dll
  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\OpenCL.dll
  • %TEMP%\nss73.tmp
  • %TEMP%\nss59.tmp
  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\pricepeep.exe
  • %TEMP%\65c533b068a1556f14e181dceb23c5d3\DirectDownloaderInstaller.exe

The following registry elements have been created:

  • HKEY_LOCAL_MACHINE\SOFTWARE\DIRECTDOWNLOADER\
  • HKEY_LOCAL_MACHINE\SOFTWARE\DIRECTDOWNLOADER\OPENBITCOIN2\

The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\SOFTWARE\DIRECTDOWNLOADER\OPENBITCOIN2\OFFERED = yes

The applications attempted the following network connection(s):

  • 199.58.162.**:80
  • hxxp://www.directdownloader.com/toolbars/*****
  • hxxp://www.directdownloader.com/*****
  • hxxp://www.openbitcoin.org/static/dist/*****

   

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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