Win32.HLLW.Autoruner1.26716
Added to the Dr.Web virus database:
2012-09-29
Virus description added:
2012-10-17
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Control Panel\Desktop] 'SCRNSAVE.EXE' = '<SYSTEM32>\logon.scr, %WINDIR%\system\Network.bat'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'CTFMON.EXE' = '<SYSTEM32>\CTFMON.EXE, %WINDIR%\Host.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\Driver.exe
Malicious functions:
Executes the following:
- <SYSTEM32>\reg.exe add "HKCU\Control Panel\Desktop" /V SCRNSAVE.EXE /T REG_SZ /D "<SYSTEM32>\logon.scr, %WINDIR%\system\Network.bat" /F
- <SYSTEM32>\attrib.exe +H +S E:\Autorun.inf
- <SYSTEM32>\attrib.exe +H +S E:\Driver.exe
- <SYSTEM32>\attrib.exe +H +S %WINDIR%\Host.exe
- <SYSTEM32>\attrib.exe +H +S %WINDIR%\system\Network.bat
- <SYSTEM32>\reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /V CTFMON.EXE /T REG_SZ /D "<SYSTEM32>\CTFMON.EXE, %WINDIR%\Host.exe" /F
Modifies file system :
Creates the following files:
- %WINDIR%\system\Network.bat
- %WINDIR%\Host.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\Driver.exe
- %WINDIR%\Host.exe
- %WINDIR%\system\Network.bat
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
- ClassName: '' WindowName: 'Minister.exe'
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