: You receive an email with a festive subject line or a sense of urgency.
: Once the archive is opened and the internal file (often a .lnk , .js , or .vbs script) is executed, it triggers a chain of events that downloads and installs malware—most commonly Emotet or Qakbot —onto the victim's machine [4, 6]. How the Attack Works
: Once one computer is infected, the malware can spread to other devices on the same Wi-Fi or office network. What to Do if You Encounter It
: To bypass email security filters that scan attachments, the .7z file is often password-protected . The password is provided in the body of the email [1, 3].
: The malware contained within can steal browser passwords, banking information, and emails, and even deploy ransomware [4, 6].
The file is not a collection of holiday recipes or festive media, but rather a known malicious archive used in phishing campaigns and cyberattacks [1, 2]. Specifically, it has been identified as a delivery mechanism for the Emotet botnet or similar info-stealing malware [3, 4]. Overview of the Threat File Type : A .7z (7-Zip) compressed archive.
: Encrypted archives are difficult for standard antivirus software to scan before they are opened [3].