Win32.HLLW.Autoruner.52915
Added to the Dr.Web virus database:
2011-06-28
Virus description added:
2011-07-01
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Control\SafeBoot\Network] 'SecurityEssentialsScheduler' = '%APPDATA%\Microsoft\msses.exe'
- [<HKLM>\SYSTEM\ControlSet001\Control\SafeBoot\Minimal] 'SecurityEssentialsScheduler' = '%APPDATA%\Microsoft\msses.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'SecurityEssentialsScheduler' = '%APPDATA%\Microsoft\msses.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\autorun.exe
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\Desktop.ini
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\Microsoft\msses.exe' = '%APPDATA%\Microsoft\msses.exe:*:Enabled:Microsoft Enabled'
Creates and executes the following:
- %APPDATA%\Microsoft\msses.exe
Modifies file system :
Creates the following files:
- %APPDATA%\Microsoft\msses.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\autorun.exe
- %APPDATA%\Microsoft\msses.exe
Network activity:
Connects to:
- 'yo###.strangled.net':9899
UDP:
- DNS ASK yo###.strangled.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
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