RAR files themselves can contain malicious payloads beyond the Excel files they package. The archive extraction process can trigger vulnerabilities in compression software. Additionally, attackers may use double extensions ( financial_report.xls.exe disguised as a .rar file) to trick users into executing harmful programs.
: This is the actual file extension. A .rar file is a compressed archive. Attackers use archives to bundle malicious scripts and hide them from basic, signature-based antivirus scanners. How the Attack Vector Works Index.of.finances.xls.rar
: This phrase mimics a standard Apache or Nginx web server directory listing. Attackers exploit this because users often associate open directories with accidental data leaks containing valuable, unencrypted information. RAR files themselves can contain malicious payloads beyond