Ukraine_2021.7z -

This file is a used in spear-phishing campaigns. Attackers sent these files—often from previously compromised official accounts—to targets including the Ukrainian Ministry of Justice and public utilities like Kyivпа�тран� (Kyiv Public Transportation Service). The Zero-Day Exploit: CVE-2025-0411

: By "double-archiving" files, attackers prevented the MotW tag from propagating to the inner malicious payload.

The campaign succeeded by exploiting a flaw in . The vulnerability allowed attackers to bypass Mark-of-the-Web (MotW) , a Windows feature that flags internet-downloaded files as untrusted. Ukraine_2021.7z

: If you suspect a file, consider using the Unzip One or other modern extractors that properly handle MotW tags.

: When a victim opened the inner file, Windows did not trigger the usual security warnings, allowing the SmokeLoader malware to execute silently. Tactics Used This file is a used in spear-phishing campaigns

: Attackers used visually identical Cyrillic characters to spoof document extensions, making a malicious archive appear as a harmless Word document (e.g., .doc ).

: Ensure you are running version 24.09 or later . The campaign succeeded by exploiting a flaw in

In the ongoing digital front of the conflict in Ukraine, cybersecurity researchers have identified a sophisticated campaign using deceptive archives like Ukraine_2021.7z to compromise government and private networks. What is Ukraine_2021.7z?