Cybercriminals create a .rar or .zip archive that appears to contain harmless files (e.g., invoice.pdf , image.jpg ). However, when the user opens these files, WinRAR erroneously triggers a hidden malicious script (e.g., .vbs or .cmd files) instead of the document.

PCAP files indicate communication with external servers. 🚨 How to Protect Yourself

If you have encountered a file similar to this, treat it with extreme caution:

The malicious payload often hides within a subdirectory inside the archive that matches the fake file name, bypassing basic user suspicion. 💻 Analysis of Typical Malicious Payloads

If you have a legitimate, corrupted archive, you can use specialized tools like Yodot RAR Repair to recover data safely.

🛡️ Threat Intelligence Report: The "Revirado" (Spoofed) RAR Technique CVE-2023-38831. Core Mechanism: File Extension Spoofing.