ici-blog https://blog.hatena.ne.jp/ici-blog/ Researcher Blog - ITOCHU Cyber & Intelligence Inc. https://blog-en.itochuci.co.jp/ Background Overview of the Observation Japanese Malspam Delivering ValleyRAT Type 1: Link-Based Malspam (Abuse of Legitimate Websites) Type 2: Link-Based Malspam (Use of Malicious Websites) Type 3: Attachment-Based Malspam Objectives Behind the Use of Different Email Types Malware Delivery Technique… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog-en.itochuci.co.jp%2Fentry%2F2026%2F04%2F28%2F170000" title="Observations of “Japanese Malspam” in 2026 Q1: Analysis of Emails Delivering ValleyRAT - Researcher Blog - ITOCHU Cyber &amp; Intelligence Inc. " class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/i/ici-blog/20260428/20260428125955.png Hatena Blog https://hatena.blog 2026-04-28 17:00:00 rich https://blog-en.itochuci.co.jp/entry/2026/04/28/170000 1.0 100%