RDN/Sdbot.bfr!a!C185C​90AD2C5

This page shows details and results of our analysis on the malware RDN/Sdbot.bfr!a!C185C90AD2C5

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

476160

Description Added

2013-06-17

Description Modified

2013-06-17

Malware Proliferation

Characteristics

This is a Virus

File PropertiesProperty Values
McAfee DetectionRDN/Sdbot.bfr!a
Length476160 bytes
MD5c185c90ad2c50b8cf06696ba8310abce
SHA18e6f643bf666e3e736a0e15df85b39b4278a12b4


Other Common Detection Aliases

Company NamesDetection Names
ahnlabWorm/Win32.Palevo
avastWin32:Injector-SE
aviraDR/Delphi.Gen
KasperskyTrojan.Win32.Buzus.cbwp
Dr.WebBackDoor.IRC.Sdbot.12724
FortiNetW32/Injector.fam!tr
Microsoftworm:win32/pushbot.gen!c
SymantecPacked.Generic.291
EsetWin32/Injector.AAT
pandaTrj/Buzus.AH
SophosMal/EncPK-LL
Trend MicroTROJ_BUZUS.BFQ
vba32Trojan-Inject.Agent.0408

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


ActivitiesRisk Levels
Attempts to connect to an IRC server. Can be used by bots to get instructions or send data to a remote server.Medium
Attempts to write to a memory location of a previously loaded process.Medium
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 BetaRDN/Sdbot.bfr!a
McAfee SupportedRDN/Sdbot.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:

8E6F643BF666E3E736A0E15DF85B39B4278A12B4

The following files have been added to the system:

  • %WINDIR%\update.exe

The following registry elements have been created:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER\RUN\

The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER\RUN\MICROSOFTCORP = %WINDIR%\update.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\MICROSOFTNAPC = %WINDIR%\update.exe

The applications attempted the following network connection(s):

  • 183.62.52.***:6667 (irc) : NICK mkflnexe
  • 183.62.52.***:6667 (irc) : USER mkflnexe * 0 :%COMPUTERNAME%

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