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Win32.HLLW.Autoruner.56577

Aggiunto al database dei virus Dr.Web: 2011-08-18

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /F'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /e'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /N'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /v'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /C'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /q'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /I'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /p'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /H'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Sxikihuvuw' = 'rundll32.exe "%WINDIR%\mcaczca.dll",Startup'
  • [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\2706157792] 'Name' = '"%TEMP%\2.tmp"'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /L'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /J'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /k'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'caaoq' = '%HOMEPATH%\caaoq.exe /s'
Creates the following files on removable media:
  • <Drive name for removable media>:\Documents.lnk
  • <Drive name for removable media>:\Passwords.lnk
  • <Drive name for removable media>:\Pictures.lnk
  • <Drive name for removable media>:\Video.lnk
  • <Drive name for removable media>:\Music.lnk
  • <Drive name for removable media>:\vrpE.ico
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\caaoq.exe
  • <Drive name for removable media>:\New Folder.lnk
  • <Drive name for removable media>:\caaoqx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Creates and executes the following:
  • %HOMEPATH%\qond.exe 
  • %HOMEPATH%\caaoq.exe 
  • %HOMEPATH%\pond.exe 
  • %HOMEPATH%\aspant.exe 
  • %HOMEPATH%\OYFCF41EX1A8pM8D.exe 
Executes the following:
  • <SYSTEM32>\rundll32.exe "%WINDIR%\mcaczca.dll",iep
  • <SYSTEM32>\tasklist.exe
  • <SYSTEM32>\rundll32.exe "%WINDIR%\mcaczca.dll",Startup
Injects code into
the following system processes:
  • <SYSTEM32>\spoolsv.exe
Modifies settings of Windows Internet Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1208' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1200' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1001' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '2000' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1405' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1209' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{A8A88C49-5EB2-4990-A1A2-0876022C854F}' = ''
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{AEBA21FA-782A-4A90-978D-B72164C80120}' = ''
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1A10' = '00000000'
Modifies file system :
Creates the following files:
  • %TEMP%\1.tmp
  • %WINDIR%\mcaczca.dll
  • %WINDIR%\Temp\3.tmp
  • %HOMEPATH%\caaoq.exe
  • %HOMEPATH%\aspant.dll
  • %HOMEPATH%\OYFCF41EX1A8pM8D.exe
  • %HOMEPATH%\aspant.exe
  • %HOMEPATH%\qond.exe
  • %HOMEPATH%\pond.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\caaoq.exe
  • <Drive name for removable media>:\caaoqx.exe
  • <Drive name for removable media>:\vrpE.ico
  • %HOMEPATH%\caaoq.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files:
  • %WINDIR%\Temp\3.tmp
  • %HOMEPATH%\OYFCF41EX1A8pM8D.exe
  • %TEMP%\2.tmp
  • <DRIVERS>\etc\hosts
Deletes itself.
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''