Four new reasons why Windows LNK files cannot be trusted
Summary
A cybersecurity researcher has discovered four new techniques to abuse Windows shortcut (.LNK) files to trick users into running malicious actions, adding to the longstanding concerns about flaws in LNK handling. These techniques involve spoofing the visible LNK destination, hiding command-line arguments, and executing a different program than shown, potentially enabling new phishing, USB-borne attacks, and initial access vectors.
IFF Assessment
The disclosure of new LNK file abuse techniques gives attackers more options to compromise systems.
Severity
Defender Context
Defenders need to be aware of the various LNK file abuse techniques and monitor for suspicious shortcut files. This includes scrutinizing shortcut targets and command-line arguments, as well as implementing policies to restrict the execution of untrusted shortcuts. The ongoing exploitation of LNK files highlights the need for Microsoft to address these underlying issues more comprehensively.