Win32.HLLW.Autoruner.55937
Added to the Dr.Web virus database:
2011-08-09
Virus description added:
2011-08-10
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = '<SYSTEM32>\172135.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Msconfig.exe] 'Debugger' = 'ntsd -d'
Creates the following files on removable media:
- <Drive name for removable media>:\PIR.exe
- <Drive name for removable media>:\Autorun.inf
Malicious functions:
Creates and executes the following:
Executes the following:
- <SYSTEM32>\reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoDriveTypeAutoRun /t REG_DWORD /d 145 /f
- <SYSTEM32>\reg.exe add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v Microsoft /t REG_SZ /d <SYSTEM32>\172135.exe /f
Forces autoplay for removable media.
Modifies file system :
Creates the following files:
- C:\PIR.exe
- C:\Autorun.inf
- <SYSTEM32>\172135.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\PIR.exe
- C:\Autorun.inf
- C:\PIR.exe
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