7-Zip MotW bypass exploited in zero-day attacks against Ukraine

7-Zip MotW bypass exploited in zero-day attacks against Ukraine
Summary: A recently exploited vulnerability in 7-Zip allows Russian hackers to bypass the Mark of the Web (MotW) security feature, enabling malware execution without warning. This flaw, tracked as CVE-2025-0411, has been used in targeted campaigns against Ukrainian organizations since September 2024. Researchers recommend updating to the latest 7-Zip version to mitigate risks associated with this vulnerability.

Affected: 7-Zip Users, Ukrainian Government and Organizations

Keypoints :

  • Vulnerability CVE-2025-0411 exploited by hackers to bypass the MotW security feature.
  • Malicious files were delivered through phishing emails with double archived files to execute malware stealthily.
  • Users are urged to update to 7-Zip version 24.09 or later to protect against the issues stemming from this flaw.

Source: https://www.bleepingcomputer.com/news/security/7-zip-motw-bypass-exploited-in-zero-day-attacks-against-ukraine/