Win32.Sector.28

Win32.Sector.28

Added to the Dr.Web virus database: 2014-01-27

Virus description added: 2014-01-27

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bs_stealth' = '%APPDATA%\bs_stealth.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run] 'bs_stealth' = '%APPDATA%\bs_stealth.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run] 'bs_stealth' = '%APPDATA%\bs_stealth.exe'

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] 'DoNotAllowExceptions' = '00000000'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:ipsec'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'

To complicate detection of its presence in the operating system,

forces the system hide from view:

blocks the following features:

Injects code into

the following system processes:

a large number of user processes.

Modifies file system :

Creates the following files:

Sets the 'hidden' attribute to the following files:

Deletes the following files:

Moves itself:

Network activity:

Connects to:

UDP:

Miscellaneous:

Searches for the following windows: