Nume:BDS/VB.avf
Descoperit pe data de:29/08/2006
Tip:Backdoor Server
ITW:Nu
Numar infectii raportate:Scazut
Potential de raspandire:Scazut
Potential de distrugere:Mediu
Fisier static:Da
Marime:48.188 Bytes
MD5:eecffebb81611d60d3c82748ac84433a
Versiune VDF:6.35.00.107
Versiune IVDF:6.35.00.133 - Freitag, 7. Juli 2006

 General Metoda de raspandire:
   • Nu are rutina proprie de raspandire


Alias:
   •  Symantec: Infostealer.Lemir
   •  Kaspersky: Backdoor.Win32.VB.avf
   •  TrendMicro: BKDR_VB.SE
   •  VirusBuster: Backdoor.VB.WOM
   •  Bitdefender: Backdoor.VB.ARA


Sistem de operare:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003


Efecte secundare:
   • Creeaza fisiere
   • Modificari in registri
   • Sustrage informatii
   • Posibilitatea accesului neautorizat la computer

 Fisiere Se copiaza in urmatoarele locatii:
   • %WINDIR%\SMSS.EXE
   • %SYSDIR%\rundll32.com
   • %SYSDIR%\finder.com
   • %SYSDIR%\MSCONFIG.COM
   • %SYSDIR%\dxdiag.com
   • %SYSDIR%\regedit.com
   • %WINDIR%\finder.com
   • %WINDIR%\explorer.com
   • %WINDIR%\1.com
   • %WINDIR%\ExERoute.exe
   • %PROGRAM FILES%\Internet Explorer\iexplore.com
   • %SYSDIR%\command.pif
   • %PROGRAM FILES%\Common Files\iexplore.pif
   • D:\pagefile.pif



Sunt create fisierele:

– %WINDIR%\BOOT.BIN.BAK
– D:\autorun.inf

 Registrii sistemului Urmatoarea cheie este adaugata in registri pentru a rula procesul la repornirea sistemului:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "TProgram"="%WINDIR%\SMSS.EXE"



Urmatoarele chei sunt adaugate in registrii sistemului:

– [HKCR\winfiles\DefaultIcon]
   • "(Default)"="%1"

– [HKCR\winfiles\Shell\Open\Command]
   • "(Default)"="%WINDIR%\ExERoute.exe "%1" %*"



Urmatoarele chei din registri sunt modificate:

– [HKCR\.lnk\ShellNew]
   Noua valoare:
   • "command"="rundll32.com appwiz.cpl,NewLinkHere %1"

– [HKCU\Software\Microsoft\Internet Explorer\Main]
   Noua valoare:
   • "Check_Associations"="No"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
   Noua valoare:
   • "Shell"="Explorer.exe 1"

– [HKCR\.bfc\ShellNew]
   Noua valoare:
   • "command"="%SystemRoot%\system32\rundll32.com %SystemRoot%\system32syncui.dll,Briefcase_Create %2!d! %1"

– [HKCR\cplfile\shell\cplopen\command]
   Noua valoare:
   • "(Default)"="rundll32.com shell32.dll,Control_RunDLL %1,%*"

– [HKCR\dunfile\shell\open\command]
   Noua valoare:
   • "(Default)"="%SystemRoot%\system32\rundll32.com NETSHELL.DLL,InvokeDunFile %1"

– [HKCR\htmlfile\shell\Print\command]
   Noua valoare:
   • "(Default)"=""%PROGRAM FILES%\Microsoft Office\Office10\msohtmed.exe" /p %1"

– [HKCR\inffile\shell\Install\command]
   Noua valoare:
   • "(Default)"="%SystemRoot%\System32\rundll32.com setupapi,InstallHinfSection DefaultInstall 132 %1"

– [HKCR\InternetShortcut\shell\open\command]
   Noua valoare:
   • "(Default)"="finder.com shdocvw.dll,OpenURL %l"

– [HKCR\scrfile\shell\install\command]
   Noua valoare:
   • "(Default)"="finder.com desk.cpl,InstallScreenSaver %l"

– [HKCR\scriptletfile\Shell\Generate Typelib\command]
   Noua valoare:
   • "(Default)"=""%SYSDIR%\finder.com" %WINDIR%\System32scrobj.dll,GenerateTypeLib "%1""

– [HKCR\telnet\shell\open\command]
   Noua valoare:
   • "(Default)"="finder.com url.dll,TelnetProtocolHandler %l"

– [HKCR\Unknown\shell\openas\command]
   Noua valoare:
   • "(Default)"="%SystemRoot%\system32\finder.com %SystemRoot%\system32\shell32.dll,OpenAs_RunDLL %1"

– [HKCR\htmlfile\shell\open\command]
   Noua valoare:
   • "(Default)"=""%PROGRAM FILES%\Internet Explorer\iexplore.com" -nohome"

– [HKCR\Applications\iexplore.exe\shell\open\command]
   Noua valoare:
   • "(Default)"=""%PROGRAM FILES%\Internet Explorer\iexplore.com" %1"

– [HKCR\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shell\
   OpenHomePage\Command]
   Noua valoare:
   • "(Default)"=""%PROGRAM FILES%\Internet Explorer\iexplore.com""

– [HKCR\ftp\shell\open\command]
   Noua valoare:
   • "(Default)"=""%PROGRAM FILES%\Internet Explorer\iexplore.com" %1"

– [HKCR\htmlfile\shell\opennew\command]
   Noua valoare:
   • "(Default)"=""%PROGRAM FILES%\Common Files\iexplore.pif" %1"

– [HKCR\http\shell\open\command]
   Noua valoare:
   • "(Default)"=""%PROGRAM FILES%\Common Files\iexplore.pif" -nohome"

– [HKCR\Drive\shell\find\command]
   Noua valoare:
   • "(Default)"="%SystemRoot%\explorer.com"

– [HKCR\.exe]
   Noua valoare:
   • "(Default)"="winfiles"

 Terminarea proceselor Lista cu procesele oprite:
   • CCENTER%combinatie de caractere aleatoare%;
      ASSISTSE%combinatie de caractere aleatoare%; KPFW%combinatie
      de caractere aleatoare%; AGENTSVR%combinatie de caractere
      aleatoare%; KV%combinatie de caractere aleatoare%;
      KREG%combinatie de caractere aleatoare%; IEFIND%combinatie
      de caractere aleatoare%; IPARMOR%combinatie de caractere
      aleatoare%; SVI.EXE; UPHC%combinatie de caractere
      aleatoare%; RULEWIZE%combinatie de caractere aleatoare%;
      FYGT%combinatie de caractere aleatoare%; RFWSRV%combinatie
      de caractere aleatoare%; RFWMA%combinatie de caractere
      aleatoare%


 Detaliile fisierului Limbaj de programare:
 Limbaj de programare folosit: Visual Basic.


Compresia fisierului:
Pentru a ingreuna detectia si a reduce marimea fisierului, este folosit un program de compresie runtime.

Die Beschreibung wurde erstellt von Monica Ghitun am Dienstag, 29. August 2006
Die Beschreibung wurde geändert von Monica Ghitun am Freitag, 24. November 2006

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