: Identify Alternate Data Streams within the RAR. Attackers often hide the real payload inside the ADS of a legitimate-looking file to evade standard antivirus scans.

This vulnerability is a high-severity flaw that allows attackers to write files to arbitrary locations on a system, typically targeting the Windows Startup folder for persistence. Malware Analysis & Mechanism

: Look for connections to Command & Control (C2) servers. Previous WinRAR exploits have been linked to exfiltrating browser logins to platforms like Webhook.site . Mitigation

: Always inspect RAR files from unknown sources using a sandbox environment before extraction. Digital Forensics | FTK Imager - Exterro

: Ensure you are using WinRAR version 7.13 or later, which addressed this specific path traversal flaw.

: While the user is distracted by the decoy, the exploit leverages the path traversal to drop a malicious payload (such as a .NET RAT or shell script) into a critical system directory like C:\Users\[Username]\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ .