RDN/Autorun.bfr!a!021​85DEEEB28

This page shows details and results of our analysis on the malware RDN/Autorun.bfr!a!02185DEEEB28

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 Engine

5600.1067

File Length

65091

Description Added

2013-04-01

Description Modified

2013-04-01

Malware Proliferation

Characteristics

This is a Virus

File PropertiesProperty Values
McAfee DetectionRDN/Autorun.bfr!a
Length65091 bytes
MD502185deeeb28a7f9bb80d78fd5e728f7
SHA1cb1e04aacac70d34e519b8757fa4b732a85faf23


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Trojan-gen
aviraWorm/Autorun.YD
BitDefenderGen:Variant.Symmi.3106
clamavPUA.Win32.Packer.MingwGcc-2
Dr.WebTrojan.Siggen4.57952
FortiNetW32/AutoRun.YD!tr
MicrosoftWorm:Win32/Nabony.A
SymantecW32.SillyFDC
EsetWin32/AutoRun.Agent.YD
normanW32/Suspicious_Gen2.RQAIB
pandaGeneric Trojan
risingTrojan.Win32.Generic.12BC4871
Trend MicroTSPY_AU.F0783550
vba32Trojan.Scar.cxnk
V-BusterTrojan.Agent2!FDsZldf/WRc (trojan)
Vet (Computer Associates)Win32/Xema.H

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


ActivitiesRisk Levels
Attempts to create Autorun.inf configuration files on accessible drives that instructs Windows operating systems to run a file when the disk is connected.High
Modifies Windows explorer file browser's Advanced settings. Sometimes used by malware to make executable files look like documents.Medium
Modifies Windows folder view settings. Could be used to make executable files look like documents.Medium
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaRDN/Autorun.bfr!a
McAfee SupportedRDN/Autorun.bfr!a



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:

CB1E04AACAC70D34E519B8757FA4B732A85FAF23

The following files have been added to the system:

  • %APPDATA%\readere_lm.com
  • %WINDIR%\SYSTEM32\acrobat.com
  • %USERPROFILE%\Local Settings\Application Data\Microsoft\CD Burning\AUTORUN.inF
  • %USERPROFILE%\Local Settings\Application Data\Microsoft\CD Burning\CD_RW.exe
  • %APPDATA%\dbf.ltb

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\ADVANCED\HIDDEN = 0
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\UPDATER = [binary data]
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\ADVANCED\FOLDER\HIDDEN\SHOWALL\CHECKEDVALUE = 0
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\UPDATER = [binary data]

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