Win32.HLLW.Autoruner.57395

Added to the Dr.Web virus database: 2011-08-31

Virus description added: 2011-09-01

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MyPen' = '<Full path to virus>'

Creates the following files on removable media:

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 virus>' = '<Full path to virus>:*:Enabled:PenCat'

To complicate detection of its presence in the operating system,

forces the system hide from view:

Executes the following:

<SYSTEM32>\reg.exe ADD hkcu\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v ShowSuperHidden /t REG_DWORD /d 0 /f
<SYSTEM32>\reg.exe ADD hkcu\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v SuperHidden /t REG_DWORD /d 0 /f
<SYSTEM32>\attrib.exe +r +h +s <Drive name for removable media>:\Start.exe

Modifies file system :

Sets the 'hidden' attribute to the following files:

Miscellaneous:

Searches for the following windows: