Win32.HLLW.Autoruner2.6571
Added to the Dr.Web virus database:
2014-02-10
Virus description added:
2014-02-11
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'idanqOVcFRlJESxncTkMmficPexclHW' = '%APPDATA%'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\idanqOVcFRlJESxncTkMmficPexclHW.scr
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
blocks execution of the following system utilities:
- Command Prompt (CMD)
- Windows Task Manager (Taskmgr)
Creates and executes the following:
- '%APPDATA%\idanqOVcFRlJESxncTkMmficPexclHW.exe' <Full path to virus>
Executes the following:
- '<SYSTEM32>\reg.exe' add HKCU\Software\Policies\Microsoft\Windows\System /v DisableCMD /t REG_DWORD /d 1 /f
- '<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoRun /t REG_DWORD /d 1 /f
Modifies settings of Windows Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoRun' = '00000001'
Modifies file system :
Creates the following files:
- %TEMP%\dw.log
- %TEMP%\28860.dmp
- %APPDATA%\idanqOVcFRlJESxncTkMmficPexclHW.exe
- C:\idanqOVcFRlJESxncTkMmficPexclHW.scr
- C:\autorun.inf
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\idanqOVcFRlJESxncTkMmficPexclHW.scr
- %APPDATA%\idanqOVcFRlJESxncTkMmficPexclHW.exe
- <Drive name for removable media>:\autorun.inf
- C:\autorun.inf
- C:\idanqOVcFRlJESxncTkMmficPexclHW.scr
Deletes itself.
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'
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