Nume:DR/Autoit.I.2
Descoperit pe data de:16/10/2007
Tip:Troian
ITW:Da
Numar infectii raportate:Scazut spre mediu
Potential de raspandire:Scazut spre mediu
Potential de distrugere:Mediu
Fisier static:Da
Marime:215.456 Bytes
MD5:3b5cf70876ef2e58a30dfa85c16b49bd
Versiune IVDF:7.00.00.94 - martedì 16 ottobre 2007

 General Metoda de raspandire:
• Functia autorun


Alias:
   •  Mcafee: W32/Autorun.worm.h virus
   •  Sophos: W32/SillyFDC-AP
   •  Panda: W32/Autorun.SF
   •  Eset: Win32/Autoit.AC
   •  Bitdefender: Worm.Generic.77741


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:
   • %SYSDIR%\msmsgs.exe
   • %unitate disc%\system.exe
   • %unitate disc%\%random directories%.exe



Suprascrie un fisier.
– %PROGRAM FILES%\ESET\nod32.exe

Cu urmatorul continut:
   • %fisier executat%




Sterge urmatoarele fisiere:
   • %PROGRAM FILES%\ESET\nod32.exe
   • %PROGRAM FILES%\ESET\nod32kui.exe
   • %PROGRAM FILES%\ESET\nod32krn.exe



Sunt create fisierele:

– %WINDIR%\autorun.inf Acesta este un fisier text care nu prezinta pericol si are urmatorul continut:
   • %cod care ruleaza fisierul malitios%

– %unitate disc%\autorun.inf Acesta este un fisier text care nu prezinta pericol si are urmatorul continut:
   • %cod care ruleaza fisierul malitios%




Incearca sa descarce cateva fisiere:

– Adresa este urmatoarea:
   • http://ppt.th.gs/web-p/pt/file/**********
La momentul realizarii descrierii, acest fisier nu era disponibil pentru o analiza ulterioara.

– Adresa este urmatoarea:
   • http://ppt.th.gs/web-p/pt/file/**********
La momentul realizarii descrierii, acest fisier nu era disponibil pentru o analiza ulterioara.

– Adresa este urmatoarea:
   • http://ppt.th.gs/web-p/pt/file/**********
La momentul realizarii descrierii, acest fisier nu era disponibil pentru o analiza ulterioara.

 Registrii sistemului Una din urmatoarele valori este adaugata in registri pentru pornirea automata a procesului dupa reboot:

–  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "Msmsgs"="%SYSDIR%\Msmsgs.exe"
   • "SYS1"="%SYSDIR%\system.exe"
   • "SYS2"="%SYSDIR%\bad1.exe"
   • "SYS3"="%SYSDIR%\bad2.exe"
   • "SYS4"="%SYSDIR%\bad3.exe"



Valorile urmatoarelor chei sunt sterse din registrii sistemului:

–  [HKCU\Software\Microsoft\Internet Explorer\Main]
   • "Window Title"

–  [HKLM\SYSTEM\ControlSet001\Services\NOD32krn]
   • "ImagePath"

–  [HKLM\SYSTEM\ControlSet001\Services\nod32drv]
   • "ImagePath"



Se sterge urmatoarea cheie din registri, inclusiv toate valorile si cheile subordnate:
   • [HKCR\lnkfile\isShortcut]



Se adauga in registrii sistemului:

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



Urmatoarele chei din registri sunt modificate:

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

– [HKCU\Software\Microsoft\Windows NT\CurrentVersion\TaskManager]
   Noua valoare:
   • "Preferences"=hex:9C,02,00,00,E8,03,00,00,02,00,00,00,01,00,00,00,01,00,00,00,5A,02,00,00,02,00,00,00,FA,04,00,00,18,03,00,00,01,00,00,00,00,00,00,00,02,00,00,00,03,00,00,00,04,00,00,00,FF,FF,FF,FF,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,00,00,00,00,00,00,01,00,00,00,02,00,00,00,03,00,00,00,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,01,00,00,00,00,00,00,00,00,00,00,00,01,00,00,00,00,00,00,00,01,00,00,00,00,00,00,00,00,00,00,00,01,00,00,00,02,00,00,00,04,00,00,00,06,00,00,00,0B,00,00,00,0E,00,00,00,FF,FF,FF,FF,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,02,00,00,00,6B,00,00,00,32,00,00,00,6B,00,00,00,23,00,00,00,46,00,00,00,46,00,00,00,3C,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,6B,00,00,00,00,00,00,00,01,00,00,00,02,00,00,00,03,00,00,00,04,00,00,00,05,00,00,00,06,00,00,00,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,6F,00,00,00,00,00,00,00,00,00,00,00,01,00,00,00

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
   Noua valoare:
   • "Hidden"=dword:0x00000002
   • "HideFileExt"=dword:0x00000001
   • "ShowSuperHidden"=dword:0x00000000
   • "SuperHidden"=dword:0x00000000

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
   Noua valoare:
   • "NoDriveTypeAutoRun"=dword:0x0000005b
   • "NoFind"=dword:0x00000001
   • "NoFolderOptions"=dword:0x00000001

 Terminarea proceselor Lista cu procesele oprite:
   • winsystem.exe
   • handydriver.exe
   • kerneldrive.exe
   • Wscript.exe
   • cmd.exe
   • nod32krn.exe
   • nod32kui.exe


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

Descrizione inserita da Petre Galan su lunedì 14 dicembre 2009
Descrizione aggiornata da Petre Galan su lunedì 14 dicembre 2009

Indietro . . . .
 
 
 
 

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