Win32.HLLW.Autoruner2.16940
Added to the Dr.Web virus database:
2014-08-06
Virus description added:
2014-08-18
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'a53210e42facd49aa36491edc58f10fd' = '"%WINDIR%\taskmgr.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'a53210e42facd49aa36491edc58f10fd' = '"%WINDIR%\taskmgr.exe" ..'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%WINDIR%\taskmgr.exe' = '%WINDIR%\taskmgr.exe:*:Enabled:taskmgr.exe'
Creates and executes the following:
- '%WINDIR%\taskmgr.exe'
- '%HOMEPATH%\Local Settings\Tempserver.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%WINDIR%\taskmgr.exe" "taskmgr.exe" ENABLE
Modifies file system :
Creates the following files:
- %WINDIR%\taskmgr.exe
- %HOMEPATH%\Local Settings\Tempserver.exe
Network activity:
Connects to:
UDP:
- DNS ASK qa####n.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
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