Technical Analysis Report on Rowdy, A New Type of IoT Malware Exploiting STBs

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In August 2017, NSFOCUS’s DDoS situation awareness platform detected anoma-lous bandwidth usage over a customer’s network, which, upon analysis, was confirmed to be a distributed denial-of-service (DDoS) attack. The attack was characterized by different types of traffic, including TCP flood, HTTP flood, and DNS flood. Tracing source IP addresses, we […]

Analysis and Solution of Spring Data REST Server PATCH Request RCE Vulnerability

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  Overview Recently, Pivotal released a security advisory to reveal the Spring Data REST server is prone to a remote code execution vulnerability (CVE-2017-8046) when processing PATCH requests. Attackers could exploit this vulnerability by sending a crafted PATCH request to the Spring Data REST server. The submitted JSON data contains […]

Struts 2 S2-052 REST Plug-in Remote Code Execution Vulnerability Analysis

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Overview On September 5, 2017, Apache Struts released the latest security bulletin announcing that the REST plug-in in Apache Struts 2.5.x and some 2.x versions is prone to a high-risk remote code execution vulnerability, which has been assigned CVE-2017-9805 (S2-052). When using an XStream handler with an instance of XStream […]

Analysis of Phishing Attacks Targeting Ukrainian Banks

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Overview On August 17, 2017, the National Bank of Ukraine (NBU) warned financial institutions in the country about a potential cyberattack. The virus would exploit the CVE-2015-2545 vulnerability to cause remote code execution by sending emails with the code disguised as a Microsoft Word document. Subsequently, a cybersecurity institution found […]

Moyou Trojan Analysis

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Overview On August 2, 2017, ANTIY discovered a new DDoS trojan and dubbed it Moyou. After obtaining the related sample, NSFOCUS conducted a detailed analysis of the trojan. Sample Analysis The following figure shows the detection result of NSFOCUS Threat Analysis Center (TAC). The sample obtains the C&C server address […]

GoldenEye & NoPetya Attack

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Executive Overview Believed to be a modified version of the once successful Petya ransomware, NoPetya seems to be a variant to the GoldenEye ransomware family with source code structuring nearly identical after initial analysis. Unlike its predecessors WannaCry and Petya, GoldenEye incorporates multiple encryption points on its compromised systems. Not […]