Win32.HLLW.Autoruner2.64590

Added to the Dr.Web virus database: 2019-10-08

Virus description added: 2019-10-09

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\software\Microsoft\Windows\CurrentVersion\Run] '9021cb996fd3b00ce997d76c2170a8c9' = '"%TEMP%\server.exe" ..'
[<HKLM>\software\Microsoft\Windows\CurrentVersion\Run] '9021cb996fd3b00ce997d76c2170a8c9' = '"%TEMP%\server.exe" ..'

Creates or modifies the following files

Creates the following files on removable media

Malicious functions

To bypass firewall, removes or modifies the following registry keys

[<HKLM>\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\server.exe' = '%TEMP%\server.exe:*:Enabled:server.exe'

To complicate detection of its presence in the operating system,

forces the system hide from view:

Executes the following

'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\server.exe" "server.exe" ENABLE

Modifies file system

Creates the following files

Sets the 'hidden' attribute to the following files

Network activity

UDP

Miscellaneous

Creates and executes the following

'%TEMP%\server.exe'
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\server.exe" "server.exe" ENABLE' (with hidden window)