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Hackers Evade Outlook Spam Filters to Deliver Malicious ISO Files

A new technique enables threat actors to bypass Microsoft Outlook’s spam filters and send malicious ISO files to victims’ inboxes. The method uses hyperlink obfuscation to disguise harmful links. This practice undermines email security defenses, especially for organizations reliant on Outlook’s native spam filtering. The technique comes hot on the heels of revelations about the exploitation of ISO files to dodge Microsoft Defender SmartScreen.

Source: gbhackers.com –

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