Win32.HLLW.Autoruner2.31006
Added to the Dr.Web virus database:
2017-12-25
Virus description added:
2017-12-25
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '81e17d2445c56db7adadeac785a22299' = '"<Full path to file>" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '81e17d2445c56db7adadeac785a22299' = '"<Full path to file>" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\81e17d2445c56db7adadeac785a22299.exe
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\svchost.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to file>' = '<Full path to file>:*:Enabled:<File name>.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "<Full path to file>" "<File name>.exe" ENABLE
Searches for windows to
detect analytical utilities:
- ClassName: '', WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'PROCMON_WINDOW_CLASS', WindowName: ''
- ClassName: '', WindowName: 'Registry Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'RegmonClass', WindowName: ''
- ClassName: '', WindowName: 'File Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'GBDYLLO', WindowName: ''
- ClassName: 'OLLYDBG', WindowName: ''
- ClassName: 'FilemonClass', WindowName: ''
- ClassName: 'pediy06', WindowName: ''
Modifies file system:
Creates the following files:
- C:\autorun.inf
- C:\svchost.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\svchost.exe
- <Drive name for removable media>:\autorun.inf
- C:\autorun.inf
- <Full path to file>
- C:\svchost.exe
Network activity:
Connects to:
UDP:
- DNS ASK in####15.codns.com
Miscellaneous:
Searches for the following windows:
- ClassName: '18467-41' WindowName: ''
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