Vammai_-_dongrui.rar : Disconnect any machine that has handled this file from the network immediately. : Use AppLocker or similar tools to prevent unsigned DLLs from loading from user-writable directories like Downloads or Temp . VAMMAI_-_Dongrui.rar The user extracts the RAR and clicks a shortcut ( .lnk ) disguised as a document. : Disconnect any machine that has handled this : It modifies registry run keys (e.g., HKCU\Software\Microsoft\Windows\CurrentVersion\Run ) to ensure it starts with the system. VAMMAI_-_Dongrui.rar If you are investigating this specific file, look for the following patterns: : Educate users to never open shortcut files provided in compressed archives from external sources.