List of “朝長 秀誠 (Shusei Tomonaga)”

  • Enhanced Protected Mode in Internet Explorer Security Technology
    Enhanced Protected Mode in Internet Explorer
    Hi, it’s Shusei Tomonaga again from the Analysis Center. My previous post discussed the mitigation effects against damages caused by malware infection by enabling Internet Explorer’s (hereafter “IE”’s) Protected Mode. In this article, I’d like to introduce an even stronger security function called “Enhanced Protected Mode”, which is a feature of IE 10 and 11 - its overview and preventive effects against damages caused by malware infection. OVERVIEW OF ENHANCED...

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  • PoisonIvy adapts to communicate through Authentication Proxies Malware
    PoisonIvy adapts to communicate through Authentication Proxies
    Hi, it’s Shusei Tomonaga again from the Analysis Center. PoisonIvy, a Remote Access Tool/Trojan (RAT) often used in targeted attacks, had been widely seen until around 2013. Since then, the number of cases using PoisonIvy in such attacks decreased, and there was no special variant with expanded features seen in the wild. However, recently, we have observed cases where PoisonIvy with expanded features in its communication function were used for...

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  • Protected Mode in Internet Explorer Security Technology
    Protected Mode in Internet Explorer
    Hello, this is Shusei Tomonaga again from the Analysis Center. JPCERT/CC has been observing cases where vulnerability in Internet Explorer (“IE” hereafter) is leveraged in targeted attacks, etc., resulting in system takeover or configuration change by a third party. In fact, IE has several functions to prevent such exploits. In this article, I will introduce one of the functions called “Protected Mode” – its overview and effects. OVERVIEW OF PROTECTED...

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  • Analysis of a Recent PlugX Variant - “P2P PlugX” Malware
    Analysis of a Recent PlugX Variant - “P2P PlugX”
    This is Shusei Tomonaga at Analysis Center. PlugX, a Remote Access Tool (RAT) often seen in many APT cases, has been in the wild for some years. Various sectors in Japan have been suffering from this type of attack from 2012, and Analysis Center has been working to catch up on the evolution of the PlugX family since then. In this blog post, I will write about a recent PlugX...

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