0nb.7z Review

: Attackers used compromised email accounts to send malicious archives. These attacks utilized homoglyph attacks , where visually similar characters are used to deceive users into opening malicious files.

On February 4, 2025, researchers at Trend Micro published a blog post detailing how Russian-linked threat actors exploited a zero-day vulnerability in 7-Zip, identified as . 0NB.7z

: Analysis from ThreatLocker highlights that attackers prefer tools like 7-Zip because they are often pre-approved in corporate environments, making it difficult for standard antivirus software to flag their use as malicious. : Attackers used compromised email accounts to send

: The vulnerability was used to deploy the SmokeLoader malware, which functions as a loader for further cyberespionage tools. 0NB.7z