Cybersecurity Insights-14
janeiro 23, 2020
Analysis of IoT Attack Sources
From NSFOCUS’s IoT threat intelligence, we can associate DDoS attack events with IoT devices. Further analysis of IoT devices compared to source IP addresses of DDoS attacks found that 3.14% of DDoS attackers are IoT devices. Though this proportion is relatively small, the number of DDoS source IP addresses is so staggering large that DDoS attacks based on IoT devices is a very significant threat. (mais…)
ICS Information Security Assurance Framework 7
janeiro 23, 2020
2.2.2 Dragonfly 2.0 Malware The Dragonfly organization, also known as Energetic Bear, mainly carries out cyber espionage activities targeting electric power operators, major power generation enterprises, petroleum pipeline operators, and industrial equipment providers in the energy sector. According to a Joint Analysis Report (JAR) released by the Department of Homeland Security (DHS), Dragonfly is a […]
IP Reputation Report-01192020
janeiro 22, 2020
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Top 10 countries in attack counts:
- The above diagram shows the top 10 regions with the most malicious IP addresses from the NSFOCUS IP Reputation databases at January 19, 2020.
ICS Information Security Assurance Framework 6
janeiro 21, 2020
2.2 ICS-Targeting Malware Analysis
In recent years, more and more malware took ICSs as targets, causing an increasingly great damage.
The following sections analyze major ICS-targeting malware. (mais…)
Cisco Data Center Network Manager (DCNM) authentication bypass vulnerability Security Alert
janeiro 21, 2020
Overview
Multiple vulnerabilities in the authentication mechanism of Cisco Data Center Network Manager (dcnm) (cve-2019-15975, cve-2019-15976, cve-2019-15977) may allow unauthorized remote attackers to bypass authentication and perform arbitrary operations with administrative privileges on the affected devices. (mais…)
ICS Information Security Assurance Framework 5
janeiro 19, 2020
Typical ICS Security Incidents
As ICSs are increasingly informatized and open, more and more attacks are hitting ICSs, doing an increasing harm. ICS-targeted attacks use the IT network as a springboard to affect the operating of OT systems. Currently, attacks against ICSs are carried out to achieve three purposes: disrupting the normal operating of ICSs, obtaining ICS data, and making financial gains. (mais…)
ICS Information Security Assurance Framework 4
janeiro 18, 2020
Technical Trend of ICS Information Security
1.3.1 General Introduction
As the application of IT technologies in industrial fields is expanding in breadth and depth, ICSs are facing an increasing number of security risks. ICSs’ original security protection systems which
feature border separation and protection tend to be associated and integrated with business. With the emergence of new application forms such as industrial clouds and industrial big data, ICS security products need to surpass the existing products in terms of functions and application form, so as to better adapt to new applications. (mais…)
ICS Information Security Assurance Framework 3
janeiro 17, 2020
Development of ICS Information Security
Since the Stuxnet virus explosion, countries all over the world have taken ICS security issues to a new height by actively working out and introducing related policies, standards, technologies, and solutions.
A look into ICS security developments around the world reveals that the USA is the first to research and implement ICS security standards. North America Electric Reliability Corporation has conducted security checks on electric power (including nuclear power) enterprises according to requirements defined in CIP series standards. Europe has inspected security of industrial control products in accordance with WIB standards. Some counties represented by Germany are diverting their efforts to ICS security in compliance with ISO 27009. Japan, in line with requirements of IEC 62443 and Achilles Certification, stipulated in 2013 that all ICS products can be applied in the country only after they are certified by national standards. Also, this country has conducted ICS security checks and construction in energy, chemical, and other critical sectors. Israel has set up a state-level ICS product security inspection center to perform security inspection on ICS products before they are connected to networks. (mais…)
Cybersecurity Insights-13
janeiro 16, 2020
Distribution of IoT-based Family Samples
We analyzed IoT-based malicious family samples captured by NSFOCUS threat hunting systems (see Figure 7-1), those captured by NSFOCUS Threat Intelligence (NTI) and those captured by VirusTotal (see Figure 7-2). The two figures, though presenting different data sources, both indicate that Gafgyt and Mirai take the first two places on the top list. We can see that IoT-based malware families tend to behave in a similar way. This is likely due to the source code of Gafgyt and Mirai families being published on the internet and can be modified at will. Their variants mainly change the C&C address and attack method, which is what tools-kids always do. Arguably, most attackers are tool users, with little technical expertise. (mais…)
IP Reputation Report-01122020
janeiro 15, 2020
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Top 10 countries in attack counts:
- The above diagram shows the top 10 regions with the most malicious IP addresses from the NSFOCUS IP Reputation databases at January 12, 2020.
