Win32.HLLW.Autoruner1.27725
Added to the Dr.Web virus database:
2012-10-12
Virus description added:
2012-10-18
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SystemT' = '%WINDIR%\system\iedqt.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'CheckS' = '%WINDIR%\config\rlqfsfbg.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'DeviceSys' = '<SYSTEM32>\irdvf.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'UserTools' = '%CommonProgramFiles%\hib.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'tDefault' = '<SYSTEM32>\yjfrr.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'RSetting' = '%WINDIR%\inf\rkcur.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Settings' = '%WINDIR%\dsrdu.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\arquivos.exe
- <Drive name for removable media>:\AUTORUN.INF
- <Drive name for removable media>:\program.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
Creates and executes the following:
- %WINDIR%\system\iedqt.exe
- %WINDIR%\Config\rlqfsfbg.exe
- <SYSTEM32>\irdvf.exe
- %CommonProgramFiles%\hib.exe
- <SYSTEM32>\yjfrr.exe
- %WINDIR%\inf\rkcur.exe
- %WINDIR%\dsrdu.exe
Terminates or attempts to terminate
the following user processes:
- MCAGENT.EXE
- ashAvast.exe
- avgcc.exe
- NAVAPW32.EXE
Modifies file system :
Creates the following files:
- %WINDIR%\Config\rlqfsfbg.exe
- %WINDIR%\system\iedqt.exe
- <SYSTEM32>\Restore\24092012.kp_
- <SYSTEM32>\irdvf.exe
- %CommonProgramFiles%\hib.exe
- <SYSTEM32>\yjfrr.exe
- %WINDIR%\dsrdu.exe
- %WINDIR%\inf\rkcur.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\irdvf.exe
- %WINDIR%\Config\rlqfsfbg.exe
- <Drive name for removable media>:\program.exe
- <Drive name for removable media>:\arquivos.exe
- <Drive name for removable media>:\AUTORUN.INF
- %WINDIR%\inf\rkcur.exe
- <SYSTEM32>\yjfrr.exe
- %WINDIR%\dsrdu.exe
- %WINDIR%\system\iedqt.exe
- %CommonProgramFiles%\hib.exe
Deletes the following files:
- <Drive name for removable media>:\AUTORUN.INF
- %TEMP%\~DFD751.tmp
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
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