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Nume:Worm/Autorun.ZZA
Descoperit pe data de:24/07/2009
Tip:Vierme
ITW:Da
Numar infectii raportate:Scazut spre mediu
Potential de raspandire:Scazut spre mediu
Potential de distrugere:Scazut spre mediu
Fisier static:Da
Marime:282.565 Bytes
MD5:ea072faa2d9596905c94c2effe952c5b
Versiune IVDF:7.01.05.28 - vineri, 24 iulie 2009

 General Metoda de raspandire:
• Functia autorun


Alias:
   •  Mcafee: W32/Autorun.worm.c virus
   •  Sophos: W32/Autoit-GH
   •  Eset: Win32/AutoRun.Autoit.BU
   •  Bitdefender: Win32.Worm.Autoit.DK


Sistem de operare:
   • Windows 2000
   • Windows XP
   • Windows 2003


Efecte secundare:
   • Descarca fisiere malware
   • Creeaza fisiere malware
   • Reduce setarile de securitate
   • Modificari in registri

 Fisiere Se copiaza in urmatoarele locatii:
   • %HOME%\Start Menu\Programs\Startup\sndvol32.exe
   • %TEMPDIR%\svchost.com
   • %HOME%\Templates\cache\vmx.exe
   • %ALLUSERSPROFILE%\Start Menu\Programs\Startup\sndvol32.exe
   • %SYSDIR%\fdisk.com
   • %unitate disc%\Thumbs.db



Sunt create fisierele:

– %HOME%\Templates\cache\desktop.ini
– %HOME%\Templates\cache\$RECYCLE.BIN\{5F229C11-5039-40E4-8537-6950BB1C9ECC}\desktop.ini
%unitate disc%\autorun.inf Acesta este un fisier text care nu prezinta pericol si are urmatorul continut:
   • %cod care ruleaza fisierul malitios%

%TEMPDIR%\$RECYCLE.BIN\{5F229C11-5039-40E4-8537-6950BB1C9ECC}\desktop.ini
– %recycle bin%\{5F229C11-5039-40E4-8537-6950BB1C9ECC}\desktop.ini
– %recycle bin%\{5F229C11-5039-40E4-8537-6950BB1C9ECC}\temp.db
– %HOME%\Templates\cache\$RECYCLE.BIN\{5F229C11-5039-40E4-8537-6950BB1C9ECC}\temp.db
– %HOME%\Templates\cache\$RECYCLE.BIN\{5F229C11-5039-40E4-8537-6950BB1C9ECC}\tmp.db
– %recycle bin%\{5F229C11-5039-40E4-8537-6950BB1C9ECC}\tmp.db
%TEMPDIR%\$RECYCLE.BIN\{5F229C11-5039-40E4-8537-6950BB1C9ECC}\tmp.db
%TEMPDIR%\$RECYCLE.BIN\{5F229C11-5039-40E4-8537-6950BB1C9ECC}\temp.db



Incearca sa descarce cateva fisiere:

– Adresa este urmatoarea:
   • http://https.ath.cx/Files/**********
La momentul realizarii descrierii, acest fisier nu era disponibil pentru o analiza ulterioara.

– Adresa este urmatoarea:
   • http://https.ath.cx/Files/**********
La momentul realizarii descrierii, acest fisier nu era disponibil pentru o analiza ulterioara.

– Adresa este urmatoarea:
   • http://neothedm.isa-geek.org/Files/**********
La momentul realizarii descrierii, acest fisier nu era disponibil pentru o analiza ulterioara.

– Adresa este urmatoarea:
   • http://neothedm.isa-geek.org/**********
La momentul realizarii descrierii, acest fisier nu era disponibil pentru o analiza ulterioara.

 Registrii sistemului Se adauga una din valorile urmatoare pentru fiecare cheie din registri, pentru a porni procesul dupa reboot:

–  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "HotKey"="%HOME%\Templates\cache\vmx.exe"
   • "User Agent"="%TEMPDIR%\svchost.com"

–  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "HotKey"="%HOME%\Templates\cache\vmx.exe"
   • "User Agent"="%SYSDIR%\fdisk.com"



Urmatoarele chei sunt adaugate in registrii sistemului:

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\regedit.exe]
   • "debugger"="notepad"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\USBGUARD.EXE]
   • "debugger"="notepad"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\VPTRAY.EXE]
   • "debugger"="notepad"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\pctstray.exe]
   • "debugger"="notepad"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\AVGNT.EXE]
   • "debugger"="notepad"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\AVP.EXE]
   • "debugger"="notepad"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\mmc.exe]
   • "debugger"="notepad"

– [HKLM\SOFTWARE\Policies\Microsoft\Windows\System]
   • "DisableGPO"=dword:0x00000001

– [HKCU\Software\vlad]
   • "iminf"="2.0.0.2"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\msconfig.exe]
   • "debugger"="notepad"

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System]
   • "DisableRegistryTools"=dword:0x00000001
   • "DisableTaskMgr"=dword:0x00000001

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\pctsgui.exe]
   • "debugger"="notepad"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\ashdisp.exe]
   • "debugger"="notepad"



Urmatoarele chei din registri sunt modificate:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
   Noua valoare:
   • "GlobalUserOffline"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
   Noua valoare:
   • "Hidden"=dword:0x00000002
   • "HideFileExt"=dword:0x00000002
   • "ShowSuperHidden"=dword:0x00000000

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
   Noua valoare:
   • "Shell"="explorer.exe %SYSDIR%\fdisk.com"
   • "Userinit"="%SYSDIR%\userinit.exe,%SYSDIR%\fdisk.com"

– [HKCU\Software\Microsoft\Windows\CurrentVersion]
   Noua valoare:
   • "LocalProxy"="-1"

– [HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows]
   Noua valoare:
   • "load"="%TEMPDIR%\svchost.com"
   • "run"="%TEMPDIR%\svchost.com"

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
   Noua valoare:
   • "NofolderOptions"=dword:0x00000001

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

Description inserted by Petre Galan on Monday, December 14, 2009
Description updated by Petre Galan on Monday, December 14, 2009

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