Virus Profile: RDN/Generic Dropper!hs!33F5D477BEFD

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 4/6/2013
Date Added: 4/6/2013
Origin: Unknown
Length: 188437
Type: Trojan
Subtype: -
DAT Required: 7036
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 DetectionRDN/Generic Dropper!hs
Length188437 bytes
MD533f5d477befdaf455e6c7a12c6623bc9
SHA16cf4fa0a6cfca8d54239184fd7f53a037398aea5


Other Common Detection Aliases

Company NamesDetection Names
EMSI SoftwareTrojan.Generic.7539169 (B)
ahnlabBackdoor/Win32.Torr
AVG (GriSoft)Agent3.ADOY
aviraTR/Crypt.XPACK.Gen
BitDefenderTrojan.Generic.7539169
clamavPUA.Win32.Packer.PrivateExeProte-10
Dr.WebTrojan.DownLoader5.16652
FortiNetW32/Farfli.KW!tr
Microsofttrojan:win32/meredrop
SymantecTrojan.Gen
normanW32/Obfuscated.A!genr
V-BusterTrojan.Agent!I9A193AOVtA (trojan)

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


ActivitiesRisk Levels
Attempts to write to a memory location of a protected process.High
Attempts to write to a memory location of a Windows system processHigh
Enumerates many system files and directories.Low
Enumerates process listLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaRDN/Generic Dropper!hs
McAfee SupportedRDN/Generic Dropper!hs



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:

6CF4FA0A6CFCA8D54239184FD7F53A037398AEA5

The following files have been added to the system:

  • %PROGRAMFILES%\svchost.exe
  • %PROGRAMFILES%\winrar\PU\PUntEx.dll
  • %PROGRAMFILES%\winrar\PU\PUntEx.OLE

The following registry elements have been created:

  • HKEY_LOCAL_MACHINE\SOFTWARE\INSTALL\

The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\SOFTWARE\INSTALL\1 = %PROGRAMFILES%\winrar\PU\PUntEx.dll
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\W32TIME\TIMEPROVIDERS\NTPCLIENT\DLLNAME = %PROGRAMFILES%\winrar\PU\PUntEx.dll

The applications attempted the following network connection(s):

  • 221.130.179.**:8001

   

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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