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Threat Research

WebAssembly 101: Bringing Bytecode to the Web

FortiGuard Labs has put together answers to some of the most frequently asked questions you may have about the new emerging technology called WebAssembly (WA). What is WebAssembly? WebAssembly is a low-level, portable, binary format for the web that aims to speed up web apps. It is designed to parse faster (up to 20X), and execute faster than JavaScript (JS). When was it announced? The WebAssembly Community Group was created in April 2015, with the mission of “promoting early-stage cross-browser collaboration on a new, portable,...

By David MaciejakApril 13, 2017

Threat Research

Multi-COM Loading Methods Used In Targeted Attack

Introduction Last month, iSightPartners revealed a Microsoft Office zero-day leveraged in a targeted attack by a Russian cyber espionage team. This vulnerability has been patched in Microsoft bulletin MS15-070. CVE-2015-2424 was assigned to this vulnerability. In this blog post, we will discuss the nature of the vulnerability to give some insights to other researchers for understanding and detecting this specific Word vulnerability. Multi-directory entries chaining We first extracted the embedded objects inside the exploit document...

By Wayne Chin Yick LowSeptember 01, 2015