A Windows shortcut, or LNK file, is a link that tells Windows how to open a program, file, folder, or command. It can store the target path, arguments, working directory, and icon details. In normal use, LNK files help users launch apps quickly. In cyber attacks, the same structure can be abused to start hidden commands, scripts, or payloads while pretending to be a harmless shortcut.
LNK files matter because they are often opened with little scrutiny, especially when delivered in email attachments, archives, or downloaded folders. Attackers may point a shortcut at cmd.exe, PowerShell, or another built-in tool so the next stage runs quietly. Defenders look for suspicious shortcut targets, unusual command-line arguments, and child processes that do not match the file name or icon. In malware chains, LNK abuse is a common first step for staging infection and blending malicious activity into normal Windows behavior.