Win32.HLLW.Autoruner2.6090

Added to the Dr.Web virus database: 2014-02-08

Virus description added: 2014-02-09

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '76620410db62a434134abda322243999' = '"%TEMP%\Yahoo! Messenger.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '76620410db62a434134abda322243999' = '"%TEMP%\Yahoo! Messenger.exe" ..'

Malicious functions:

To bypass firewall, removes or modifies the following registry keys:

[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Yahoo! Messenger.exe' = '%TEMP%\Yahoo! Messenger.exe:*:Enabled:Yahoo! Messenger.exe'

Creates and executes the following:

Executes the following:

'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Yahoo! Messenger.exe" "Yahoo! Messenger.exe" ENABLE

Modifies file system :

Creates the following files:

Network activity:

Connects to:

Miscellaneous:

Searches for the following windows: