Rust has been gaining attention in recent years as a language expected to replace C and C++, due to its memory safety and high performance. While Rust continues to be adopted as a programming language, malware developed using Rust (hereinafter referred to as "Rust malware"), such as Rust variants of SysJoker and the BlackCat ransomware, has also been increasing in recent years. However, knowledge of reverse engineering techniques for Rust...
List of “2026”
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In this article, we continue our overview of the sessions at JSAC2026....
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Continuing from the previous report, this second installment introduce...
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JPCERT/CC hosted JSAC2026 from January 21 to 23, 2026. JSAC is an annual conference dedicated to advancing the capabilities of security analysts by fostering the exchange of technical knowledge and operational insights related to incident analysis and response. Now in its ninth year, the event incorporated a new training program, expanding the program to three days. Across two days, the conference featured 17 presentations, three workshops, and six lightning talks....
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On December 3, 2025 (local time), a vulnerability allowing unauthenticated remote code execution in React Server Components (RSC) (CVE-2025-55182) was disclosed. JPCERT/CC has received multiple incident reports related to this attack. Among them, there was a case in which this vulnerability was exploited by multiple threat actors within a short period of time, resulting in multiple incidents occurring simultaneously, including website defacement. This article demonstrates how rapidly and indiscriminately attackers...
