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GREYCORTEX Mendel 4.4 正式推出!

4.4 版本採用全新 CentOS 作業系統,為未來版本釋放更多強大功能,包括:

  • 煥然一新的使用者權限管理:與身份服務原生整合,支援單一登入(SSO)和多重身份驗證(MFA),讓權限管理更安全便捷
  • 高可用性再升級:新增收集器備援功能(第一階段),確保系統穩定運行,時刻守護您的網絡安全
  • OT 設備專屬漏洞映射:精準識別 OT 設備漏洞(CVE),為工業控制系統安全築起堅實防線
  • 威脅情報 2.0 全新進化:支援自訂來源定義和自動化數據處理,讓威脅情報更精準、更有效率
  • NBA 事件全面改進:利用 UnTE(標記)引擎提升事件關聯性,洞悉潛藏威脅,快速反應
  • MSSP 部署如虎添翼:改進的邏輯感測器,助力 MSSP 提供更優質的安全服務

應用程式數據分析深入洞察:深入分析應用程式數據,全面掌握營運狀況,精準識別網絡環境

4.4 版本將於 2025 年 2 月起陸續推送給現有客戶。

關於GREYCORTEX
GREYCORTEX使用先進的人工智能,機器學習和數據挖掘方法來幫助組織使其IT操作安全可靠。MENDEL是GREYCORTEX的網絡流量分析解決方案,它可以通過檢測對其他網絡安全產品所缺少的敏感數據,網絡,商業機密和聲譽的網絡威脅,來幫助公司,政府和關鍵基礎設施部門保護其未來。MENDEL基於十年的廣泛學術研究,並使用在四項美國NIST挑戰賽中均獲得成功的技術進行設計。

關於 Version 2 Digital
資安解決方案 專業代理商與領導者
台灣二版 ( Version 2 ) 是亞洲其中一間最有活力的 IT 公司,多年來深耕資訊科技領域,致力於提供與時俱進的資安解決方案 ( 如EDR、NDR、漏洞管理 ),工具型產品 ( 如遠端控制、網頁過濾 ) 及資安威脅偵測應 變服務服務 ( MDR ) 等,透過龐大銷售點、經銷商及合作伙伴,提供廣被市場讚賞的產品及客製化、在地化的專業服務。

台灣二版 ( Version 2 ) 的銷售範圍包括台灣、香港、中國內地、新加坡、澳門等地區,客戶涵 蓋各產業,包括全球 1000 大跨國企業、上市公司、公用機構、政府部門、無數成功的中小企業及來自亞 洲各城市的消費市場客戶。

您的 NIS2 合規夥伴 GREYCORTEX Mendel 強化公司企業網絡安全防禦

歐盟 NIS2 指令開啟了網絡安全法規的新紀元,其對流程建置與技術要求的著重,促使企業重新審視網絡風險管理策略。除了建立完善的治理框架,NIS2 更強制要求資產管理、網絡分段、事件偵測等關鍵技術措施。對許多企業而言,這些技術要求可能構成嚴峻挑戰:如何有效落實?現有工具是否足夠?GREYCORTEX Mendel 正是為此而生,協助您彌合流程與技術之間的鴻溝。Mendel 提供強大的監控、安全防護及網絡基礎架構功能,簡化您的合規流程。

本文將深入探討 Mendel 如何支援 NIS2 的技術合規要求,協助您在滿足指令規範的同時,顯著提升網絡安全防禦能力。

NIS2 指令概覽

歐盟網絡與資訊安全指令(NIS2)於 2020 年 12 月頒布,旨在透過強制執行特定要求與措施,在歐盟成員國間建立統一的網絡安全保護標準。相較於前身 NIS 指令,NIS2 在範圍及目標上均有顯著擴展。儘管各國在採納指令時,可能因應當地法規進行調整,但核心挑戰依然共通。GREYCORTEX Mendel 在此扮演關鍵角色。無論您所在地區的法規細節如何,Mendel 都能提供實用工具與深入洞察,協助您應對關鍵技術要求,確保企業安全合規。

NIS2 實務應用:GREYCORTEX Mendel 的支援

精準資產管理

企業必須全面掌握基礎架構內所有裝置與系統,及其互動關係。GREYCORTEX Mendel 提供自動化資產稽核及連接圖繪製功能,簡化管理流程。例如,一家區域醫療機構透過 Mendel 發現 15 個未記錄裝置,進而識別易受攻擊的舊有系統,並制定有效的緩解策略。Mendel 能偵測並儲存網絡中所有通訊裝置的資訊,提供網絡及子網絡清單,以及詳細的裝置資訊。此外,系統還提供裝置與子網絡的風險等級,以及主機名稱、標籤、作業系統等詳細參數。

系統提供裝置與網絡間的連接可視化圖,以及使用者概覽。透過整合 Active Directory 或 LDAP 伺服器等身分來源,Mendel 能將特定通訊與個別使用者連結。

強化風險管理

識別關鍵系統及其故障影響至關重要。Mendel 能協助企業識別並優先處理關鍵資產,評估潛在的中斷影響。透過識別資產的關鍵性,企業能有效分配資源,聚焦於對營運及合規至關重要的事項。例如,一家製造企業透過 Mendel 發現舊有控制系統周圍存在不充分的分段,並及時修補漏洞,避免了可能導致生產停頓的勒索軟件攻擊。Mendel 允許您過濾存取特定服務或應用程式的通訊用戶端,以此作為判斷服務與應用程式關鍵性的依據。

強化人力資源安全與精確存取控制

為有效防範未經授權的活動,持續監控使用者行為與存取權限至關重要。這包括偵測使用者與不應具備存取權限的系統進行通訊、使用遭封鎖帳戶或遙距存取連線 VPN,以及合約終止後外部供應商仍存取企業內部網絡等異常行為。GREYCORTEX Mendel 能精準識別異常存取模式,例如嘗試登入受限系統或使用遭洩露的憑證。

近期,某客戶透過 Mendel 發現其員工憑證於下班後遭濫用,用於存取敏感應用程式。Mendel 迅速標記此異常情況,使 IT 團隊得以即時應對,有效防止潛在的資料外洩。透過整合 Mendel 與資產管理工具或身分驗證系統,企業可建立完整的使用者清單,並深入分析其與其他使用者及服務之間的通訊模式,有效識別不應存在於網絡中的使用者。

落實持續性網絡安全稽核

定期稽核是確保安全措施與日常營運無縫接軌的關鍵。相較於傳統的年度或半年度稽核,Mendel 提供持續性的政策與合規驗證,實現每日不間斷的安全監控。

鞏固通訊網絡安全

網絡分段是建構強固網絡安全防禦的基石。GREYCORTEX Mendel 協助企業輕鬆驗證網絡分段策略的有效性,清晰呈現子網絡間不當通訊,以及原本應受限制的裝置是否可從網際網絡存取等異常行為。以關鍵生產設備為例,這些設備通常限制於內部網絡以確保安全,但偶爾可能需要臨時網際網絡存取進行升級或遙距維護。若此存取權限於使用後未即時撤銷,Mendel 將偵測並警示任何未經授權的通訊,確保網絡安全無虞。

Mendel 更進一步支援 MODBUS 等工業協定,以視覺化方式呈現生產設備的通訊流,不僅驗證設備通訊位置,更確保其符合既定的安全政策。此外,Mendel 簡化了非法連線的偵測,例如過濾並監控受公司政策限制的遙距桌面協定 (RDP) 通訊,或識別未經授權的 TeamViewer 連線。


精準偵測網絡安全事件

GREYCORTEX Mendel 的核心功能之一,即為結合記錄與分析的精準偵測能力,有效預防網絡安全事件。Mendel 透過分析網絡流量,偵測基於特徵與異常行為的威脅,協助企業在網絡攻擊的不同階段採取應對措施。例如,Mendel 能偵測進階持續性威脅(APT)的命令與控制(C2)通訊,以及勒索軟件攻擊中常見的暴力破解攻擊,並識別掃描或通道等其他危險行為。

完善事件日誌記錄

NIS2 指令要求保留至少 18 個月的網絡安全事件記錄。GREYCORTEX Mendel 提供安全的資料記錄與追蹤功能,僅受儲存容量限制,協助企業輕鬆達成合規要求。Mendel 更支援 PCAP 檔案的上傳與匯出,實現與其他工具的無縫整合,便於外部分析或將 PCAP 匯入 Mendel 進行深入調查,確保企業在應對網絡安全事件時保持高度靈活性。

深入分析網絡安全事件

持續且集中的事件評估是維持強健安全態勢的關鍵。這包括識別關聯性、評估來源相關性,以及生成即時自動或手動配置的警報。GREYCORTEX Mendel 提供深入的事件細節分析,並採用 MITRE ATT&CK 框架進行事件分類,提供業界認可的威脅理解方式。此外,Mendel 提供多種直觀的視圖與過濾器,協助企業從多個角度分析資料,聚焦於關鍵議題。

確保加密演算法的安全性

GREYCORTEX Mendel 協助企業驗證系統是否採用最新的加密標準,並消除未加密通訊或明文密碼傳輸的風險。例如,Mendel 偵測到客戶系統中的多個明文密碼傳輸,促使企業強化加密政策,有效防止憑證竊取。此外,Mendel 驗證通訊憑證的有效性,確保加密連線的安全與合規。

強化工業資產安全

NIS2 指令高度重視工業網絡安全,此為許多企業面臨的挑戰。GREYCORTEX Mendel 支援 MODBUS、OMRON、BACnet 等工業協定,實現對營運技術(OT)環境的全面監控。除了分析 IT 網絡流量,Mendel 更可視化 Purdue 模型 2 級以下的設備通訊,包括感測器、馬達等工業元件。透過適當配置,Mendel 能提取 OT 設備的詳細資訊,例如爐溫、離心機轉速、管道壓力與儲存容器水位。Mendel 提供關鍵資料,確保生產基礎設施的可靠性與安全性,包括:

  • 識別影響 OT 設備的常見漏洞與暴露(CVE)
  • 驗證工業系統的配置設定
  • 提供韌體資訊,強化版本控制與安全評估

及早部署,防患未然

歐盟各成員國對於 NIS2 指令的適用性、執行與罰則可能有所差異。然而,在網絡安全領域,「防患於未然」始終是至關重要的原則。無需過度擔憂,但切勿低估企業或機構的安全風險。無論您的企業處於合規之旅的哪個階段,GREYCORTEX Mendel 都能提供必要的可視性與控制力,協助您成功達成合規目標。

立即安排產品演示,讓我們向您展示如何協助您的企業實現網絡安全防禦的全面升級。

關於GREYCORTEX
GREYCORTEX使用先進的人工智能,機器學習和數據挖掘方法來幫助組織使其IT操作安全可靠。MENDEL是GREYCORTEX的網絡流量分析解決方案,它可以通過檢測對其他網絡安全產品所缺少的敏感數據,網絡,商業機密和聲譽的網絡威脅,來幫助公司,政府和關鍵基礎設施部門保護其未來。MENDEL基於十年的廣泛學術研究,並使用在四項美國NIST挑戰賽中均獲得成功的技術進行設計。

關於 Version 2 Digital
資安解決方案 專業代理商與領導者
台灣二版 ( Version 2 ) 是亞洲其中一間最有活力的 IT 公司,多年來深耕資訊科技領域,致力於提供與時俱進的資安解決方案 ( 如EDR、NDR、漏洞管理 ),工具型產品 ( 如遠端控制、網頁過濾 ) 及資安威脅偵測應 變服務服務 ( MDR ) 等,透過龐大銷售點、經銷商及合作伙伴,提供廣被市場讚賞的產品及客製化、在地化的專業服務。

台灣二版 ( Version 2 ) 的銷售範圍包括台灣、香港、中國內地、新加坡、澳門等地區,客戶涵 蓋各產業,包括全球 1000 大跨國企業、上市公司、公用機構、政府部門、無數成功的中小企業及來自亞 洲各城市的消費市場客戶。

GREYCORTEX Mendel 4.0 現已推出

December 15, 2022 – We have released a new version of GREYCORTEX Mendel. Version brings a new view of security and risks that individual subnets and hosts bring, advanced NetFlow processing and integration with other tools and security platforms.

The new version is already available for new installations and will also be gradually released on December 19 for an online upgrade.

More about GREYCORTEX Mendel 4.0

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

About GREYCORTEX
GREYCORTEX uses advanced artificial intelligence, machine learning, and data mining methods to help organizations make their IT operations secure and reliable.

MENDEL, GREYCORTEX’s network traffic analysis solution, helps corporations, governments, and the critical infrastructure sector protect their futures by detecting cyber threats to sensitive data, networks, trade secrets, and reputations, which other network security products miss.

MENDEL is based on 10 years of extensive academic research and is designed using the same technology which was successful in four US-based NIST Challenges.

GREYCORTEX Mendel 3.9.1 現已推出

September 20, 2022 – We have released GREYCORTEX Mendel 3.9.1 which brings minor improvements and bug fixes.

Enhancements

Event visibility level store its configuration on the user level (keep the last state before logout)

Improved performance and reliability for Failsafe mode

Improved subnet filtering by substring search in filter

Fixed issues with

  • Performance in the network capture module
  • Invalid license during Sensor&Collector upgrade
  • Default firewall configuration for an asset discovery tool
  • Checkpoint firewall rule policies
  • Detecting TOR traffic by IDS signatures
  • Resizing LVM storage on AWS
  • Two or more DNS servers on the management interface
  • Empty subnet graph for subnets filtered by tag(s)
  • User permissions
  • SSL configuration for Fortigate firewall plugin
  • Invalid CSV header in subnet import
  • Malformed input for network parsers
     

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

About GREYCORTEX
GREYCORTEX uses advanced artificial intelligence, machine learning, and data mining methods to help organizations make their IT operations secure and reliable.

MENDEL, GREYCORTEX’s network traffic analysis solution, helps corporations, governments, and the critical infrastructure sector protect their futures by detecting cyber threats to sensitive data, networks, trade secrets, and reputations, which other network security products miss.

MENDEL is based on 10 years of extensive academic research and is designed using the same technology which was successful in four US-based NIST Challenges.

GREYCORTEX Mendel 3.8 現已推出

We have released a new version of GREYCORTEX Mendel

You will now have even deeper insight into your IT and OT networks thanks to the customizability and versatility of GREYCORTEX Mendel 3.8.

GREYCORTEX Mendel 3.8 Features List

 

Dynamic monitoring of IT and OT network

Visualize your network assets in a broader context

We bring broader and clearer insights into your network with new automated or manual classification of devices and subnets into logical parts according to given criteria.
You are also able to create and assign a tag for all network assets including enhanced information. You can classify or process the tagged devices and subnetworks using other logical operations.
With individual tags, it is possible for you to monitor any changes that occur on your devices. This gives you an overview of the network in a broader context.



Better overview of network security

Keep your network security under control

Mendel interprets all events captured in your network with more clarity thanks to the MITRE ATT&CK® framework.
Events in the network are classified according to:
 —  MITRE ATT&CK® tactics and techniques
 —  Proofpoint rules
 —  Top events – you can see the most relevant events at the top

Wider options for network data retrieval

Choose your own view of your data

GREYCORTEX Mendel 3.8 is capable of deeper and more advanced data analysis than ever before. 
Thanks to the redesigned analysis module, you can  define any view over your processed and stored data using attributes, metrics and other variables.

Easier deployment of GREYCORTEX Mendel 

See all your subnets straight after deployment

Immediately after deploying GREYCORTEX Mendel 3.8 to your network, Mendel starts the process of finding and classifying all subnets by itself.
Thanks to this categorization at this early stage of deployment, you can orientate in the network quickly and clearly. 
A hidden subnet could be a potential threat to your entire network. Now you can avoid the danger using this new enhancement.

Asset Discovery

Do you know what is hiding in your OT/ICS network?

Search for information about the OT devices in your network proactively. GREYCORTEX Mendel supports many OT protocols, giving you the ability to see all devices in your network and also find detailed information about them. You will get such details as manufacturer, serial number, the last revision date of hardware or software, and much more.

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

About GREYCORTEX
GREYCORTEX uses advanced artificial intelligence, machine learning, and data mining methods to help organizations make their IT operations secure and reliable.

MENDEL, GREYCORTEX’s network traffic analysis solution, helps corporations, governments, and the critical infrastructure sector protect their futures by detecting cyber threats to sensitive data, networks, trade secrets, and reputations, which other network security products miss.

MENDEL is based on 10 years of extensive academic research and is designed using the same technology which was successful in four US-based NIST Challenges.

GREYCORTEX 發布安全更新以修補 Apache Log4j 漏洞

GREYCORTEX is actively responding to the reported high severity vulnerability (CVE-2021 – 44228) that was found in the Apache Log4j library. All Mendel installations deployed in the last few years are vulnerable to this vulnerability. The new version, 3.8.0, which will be released in the upcoming days, is not affected and current versions 3.7.x and 3.6.x have now been covered with security updates.

Background

A high severity vulnerability (CVE-2021 – 44228) impacting multiple versions of the Apache Log4j 2 utility was disclosed publicly via the project’s GitHub on December 9, 2021. The vulnerability impacts Apache Log4j 2 versions 2.0 to 2.14.1.

Log4j is used as a component of our GREYCORTEX Mendel product. More information on the vulnerability can be found in the links below.

CVE-2021 – 44228 Detail (NIST)

CVE-2021 – 44228 vulnerability in Apache Log4j library (SecureList)

Is my Mendel deployment vulnerable? 

All Mendel installations deployed in the last few years are affected by this vulnerability but the vulnerable part of the Mendel deployment is NOT exposed to a direct Internet connection.

What can I do to mitigate and resolve this issue?

GREYCORTEX has actively responded to the reported remote code execution vulnerability in the Apache Log4j 2 Java library, dubbed Log4Shell (or LogJam). We have investigated and taken action regarding our product GREYCORTEX Mendel. The new version 3.8.0, which will be released in the upcoming days, is not affected and current versions 3.7.x and 3.6.x are now covered with security updates, which are automatically distributed through the update server.

Older systems will not be patched, customers who are using older versions are strongly advised to upgrade.

Mitigations: if you are not able to upgrade to the newer version or your Mendel instance does not have access to the update server, then please restrict access to Mendel via your firewall settings. It is recommended to restrict access only to a trustworthy IP address range, also for normal operations.

How can I find out if my Mendel system or other systems of our customers have been compromised?

Mendel includes a set of detection rules that can detect whether a vulnerability in the Apache Log4j logging framework has been exploited to attack the Mendel system itself or other systems in your infrastructure. These rules are automatically available through the GREYCORTEX update server. If your Mendel instance or your customer instance is online, these signatures will be added to it automatically.

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

About GREYCORTEX
GREYCORTEX uses advanced artificial intelligence, machine learning, and data mining methods to help organizations make their IT operations secure and reliable.

MENDEL, GREYCORTEX’s network traffic analysis solution, helps corporations, governments, and the critical infrastructure sector protect their futures by detecting cyber threats to sensitive data, networks, trade secrets, and reputations, which other network security products miss.

MENDEL is based on 10 years of extensive academic research and is designed using the same technology which was successful in four US-based NIST Challenges.

為什麼醫院網絡保護是一個難以破解的難題

There is a simple reason why hospitals are the frequent targets of cybercriminals. Hospital networks contain patients’ and research data that is highly valued on the black market. And their infrastructure specifics make protecting it difficult.

In 2020, all 16 Czech key hospitals covered that year by the Cybersecurity Act reported a cyber incident. But also smaller healthcare facilities were being attacked and protecting them was no less complicated.

There are a few complications that make hospital cybersecurity challenging: the complex architecture of hospital networks, the frequent obsolescence of operating systems and also the insufficient number of qualified security personnel.

In addition, legislative requirements place high demands on security, including:

  • GDPR
  • Your National eHealth Center’s methodological guidelines (if you have one)
  • International standards that summarize security recommendations for the use of healthcare systems and best practices (ENISA – Cyber security and resilience for Smart HospitalsMDISS – Medical Device Innovation, Safety & Security Consortium)

Last, but not least, every organization usually has its own internal security regulations. These are based on risk analyses or the internal recommendations and requirements of the hospital’s governing board for the operation of IT in the hospital.

The Most Common Targets of Attackers

In the first stages, attackers aim usually at hospital employees’ login credentials, through which attackers try to gain access to VPNs, internal or health information systems. All these systems contain high-value data through which the attacker can hold the hospital to ransom.

Another source of income for attackers is research data that can be effectively monetized, but patient data is an especially big gain. The price for this information (data about a person and their health status) is from tens to hundreds of dollars per record on the black market. By contrast, mere contact details (for example, from a hacked e‑shop) are only worth units of dollars.

And, of course, there are attacks whose primary goal is to take a hospital out of operation. In the case of compromised information systems, hospitals are unable to retrieve medical records or determine the availability of drugs and supplies. In the worst case scenario, the attack affects the operational infrastructure.

In short: the hospital cannot provide the healthcare function essential for its patients.

The Specifics of Internal Hospital Networks

Hospital internal networks have a specific and rather complicated architecture. They are the combination of not only IT elements but also include the operational technology of specialized medical departments as well as devices such as air conditioning, heating or blind controls.

There are many different types of IT networks in hospitals, for example:

  • Medical networks, in which doctors and nurses access medical records, inventories and other medical information
  • Patient networks, which are used by patients and visitors to the hospital
  • Private physician networks, which lease connectivity from the hospital and also have access to the internal network of information systems

All of this is often complicated by the frequent use of outdated systems and insufficient staff capacity to ensure the organization’s cybersecurity.

We should view these characteristics as specifics that cannot be immediately addressed but need to be kept in mind when securing health facilities. For example, some modalities (diagnostic equipment such as X‑ray machines, ultrasound, etc.) were purchased by hospitals 10 to 15 years ago and their level of security corresponds to their age. Often, the manufacturer does not even provide necessary updates, so there are devices with an un-updated operating system in the network. We have seen devices running on Windows XP. Even DOS and old versions of Linux are not rare as without these operating systems, it is not possible to use these devices.

Our experience, coming from dozens of hospitals in the European Union and Asia, has shown us that there are many hospitals with a high level of cyber protection. Unfortunately, there are also those with a large number of security shortcomings that need to be solved. Fortunately, GREYCORTEX Mendel can help them all.

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

About GREYCORTEX
GREYCORTEX uses advanced artificial intelligence, machine learning, and data mining methods to help organizations make their IT operations secure and reliable.

MENDEL, GREYCORTEX’s network traffic analysis solution, helps corporations, governments, and the critical infrastructure sector protect their futures by detecting cyber threats to sensitive data, networks, trade secrets, and reputations, which other network security products miss.

MENDEL is based on 10 years of extensive academic research and is designed using the same technology which was successful in four US-based NIST Challenges.

為什麼 GREYCORTEX Mendel 是您的網絡安全產品系列的重要成員

There are several basic tools for securing network infrastructure that should not be missing from any organization. Let’s take a look at the role of GREYCORTEX Mendel in all those products protecting the data and network in your company.

Antivirus software, firewalls and intrusion prevention systems (IPS) should be an integral part of any organization’s cybersecurity solution. Nowadays, however, they are often not enough. That’s where Mendel steps in.

GREYCORTEX Mendel stands on several levels:

  • It is a unique tool that sees, visualizes and analyzes everything in your network – devices, access and all communications.
  • It is a great extension to the functionality of standard cybersecurity tools: antivirus, firewalls and network performance monitoring. They are crucial, but there are some threats that even they cannot detect. The reason is simple: attackers are often ready for these standard systems.

Mendel Sees and Visualizes in the Context of Time and Events

Imagine a tool that sees all the devices in your network, how they are communicating together, what protocols they are using and where your data is going. With Mendel, you can see all of that. You can also view the details of a specific device, its communication and where it is connected to at the moment, and also yesterday or a year ago.

With this unique analysis, you can uncover a sophisticated attack on your infrastructure before it really happens. That’s because you can relate current events to events that happened before, even in the more distant past.

Let’s take a look at an example of an attack that may go unnoticed by a standard detection mechanism: Advanced malware is not detected on the end device, but that device shows behavior that could endanger the network – for example, trying to access somewhere it has not accessed before. It could be spyware or an APT in your internal domains that is gradually spreading across your network through a domain, while the infected machines start accessing unusual devices and data sources and performing lateral movement. Mendel can identify and notify you of such unusual behavior.

More Reliable End-Point Security

Because end-points are an easy target, often provide valuable data and are an entry point for gaining deeper access to your network, they are the frequent initial targets of cyber-attacks.

Commonly known end-point attacks include:

  • network mapping
  • data exfiltration (sending data in non-standard or encrypted channels, communication with control devices)
  • Dictionary attacks, password data breaches
  • Data mining (reading important information, mining data from a database, mining users from information systems or from a domain controller)

Mendel flags such attacks as dangerous behavior and recognizes the threat that might not have been recognized by endpoint security or that is well hidden by the attacker. Even if antivirus software is deployed, Mendel monitors the communication of your devices and reveals any anomalies in it. All of that using a broad database specializing in network cyber threats that include not only known threats but also signatures of unusual behavior.

A Smarter Firewall

We can understand a few things that fall under the term firewall: standard firewalls and smart solutions known as an IPS.

Traditional firewalls stand first in the line of defense and secure broad traffic filtering. They adjust network transitions and the availability of network services and are mostly used on the external perimeter – in some cases within the internal network. They are often open or insufficiently configured.

In such cases, Mendel plays the role of an auditing tool – controlling the function of the firewall itself and checking its configuration. You can use this feature for verifying and controlling the communication matrix in your internal network and critical systems. It helps you understand who is connecting where, who is using what and who is behaving differently than they should.

Smart solutions such as IPS see more deeply into your network, can detect known threats and block them. Also here, Mendel provides you a double-check by monitoring the operation of web proxies and email gateways. This means no potential threat can pass. Even in this case, Mendel’s advantage is its extensive database of threats, consisting of multiple sources and signatures that verify not only known attacks but also security policies and potentially dangerous access to data sources, such as administrative sharing. This approach is much more effective for the detection of vulnerabilities than just a database of known threats from one vendor.

This way, Mendel shows much more – not only what needs to be blocked but also unwanted or insecure applications and access to risky services. You’ll get a much better overview of what is going on and what is going through your network and how.

The Danger of Unknown Threats

In all mentioned cases, Mendel not only deals better with detecting known threats, its strength lies in also detecting unknown threats. How? Mendel recognizes different types of actions using behavioral analysis.

Right after anomalous behavior or an unknown threat is detected, the system notifies you, for example, by email. It’s then your choice. You can either take the necessary steps or you can connect Mendel to the firewall API and it will block the unwanted communication automatically for you.

A Huge Help for Monitoring Network Performance

At the next level, there are tools for internal system monitoring. In this case, Mendel shows a clear overview of the network – how it is loaded and used, who is accessing it, what services are operating and what the performance of applications and transmission lines is.

Imagine seeing just how loaded your information system, domain controller, Wi-Fi network or data center are!

GREYCORTEX Mendel helps you increase the reliability of your network. Even industrial control systems can get the right amount of control, so any attack or even a major network failure has no catastrophic consequences.

Antivirus software shows you current threats. A firewall displays the current settings and whether it is leaking something or not. But nothing will clearly show you events in your network an hour, a week or a year ago. In a nutshell, Mendel sees, visualizes and (thanks to data storage of up to the last several years) also analyzes current as well as past events.

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

About GREYCORTEX
GREYCORTEX uses advanced artificial intelligence, machine learning, and data mining methods to help organizations make their IT operations secure and reliable.

MENDEL, GREYCORTEX’s network traffic analysis solution, helps corporations, governments, and the critical infrastructure sector protect their futures by detecting cyber threats to sensitive data, networks, trade secrets, and reputations, which other network security products miss.

MENDEL is based on 10 years of extensive academic research and is designed using the same technology which was successful in four US-based NIST Challenges.

GREYCORTEX 團隊在 NVIDIA 黑客馬拉松中獲得第三名

During the 30-hour NVIDIA DPU virtual hackathon, participating teams worked on technologies for furthering advancements in AI , cloud and accelerated computing. Our GREYCORTEX team was among them, and our solution was awarded third place.

The goal of the hackathon was to validate the potential of using DPU (Data Processing Unit) accelerator cards for AI , networking, security and storage. The teams worked on developing a solution demonstrating the possibilities of using DPU in a data centre infrastructure.

In a competition made up of teams from all over Europe, the jury awarded third place to the project of the GREYCORTEX team, consisting of Petr Chmelař, Marek Brychta, Ondřej Kvasnica, Marina Volkova and Jozef Mlích. Our team used NVIDIA BlueField DPU cards for a DDoS attack detection and mitigation system.

With the DPU , Mendel will be able to process traffic faster, smarter and at a lower cost than before.

“ At GREYCORTEX , we are involved in a number of research projects outside of Mendel product development, trying to anticipate where market and customer needs will go. We are looking for ways to solve these problems and challenges,” says Pavel Jurka, CTO of GREYCORTEX .

One of the topics we have been working on over the past year is the processing of big data streams and their analysis using advanced methods that leverage machine learning and artificial intelligence. At the same time, we are looking at how to actively defend against such advanced attacks, which can be aided by hardware-level acceleration.

Participation in the hackathon followed our testing of the latest generation of NVIDIA BlueField DPU cards, which allowed us to demonstrate our intentions for how to use DPU in practice.

“ We hope that this technology will move into production deployment in the near future and we will be able to use it to provide better security for our customers,” concludes Pavel Jurka.

For more technical information, please contact our research team.

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

About GREYCORTEX
GREYCORTEX uses advanced artificial intelligence, machine learning, and data mining methods to help organizations make their IT operations secure and reliable.

MENDEL, GREYCORTEX’s network traffic analysis solution, helps corporations, governments, and the critical infrastructure sector protect their futures by detecting cyber threats to sensitive data, networks, trade secrets, and reputations, which other network security products miss.

MENDEL is based on 10 years of extensive academic research and is designed using the same technology which was successful in four US-based NIST Challenges.

現已推出GREYCORTEX MENDEL 3.7

GREYCORTEX has released the latest version of its Mendel Network Detection and Response solution. Version 3.7.0 brings important features and improvements. The main features in Mendel 3.7.0 include CISCO ISE user identity integration and response, CISCO Firepower incident response, SNMP appliance monitoring & SNMP trap, or AWS, MS Azure and Google cloud deployability.

ENHANCED INTEGRATION WITH YOUR INFRASTRUCTURE

Better visibility on user identity

For use cases when Mendel has no direct access to AD/LDAP server or with limited permissions then user identity could be provided via integration with CISCO Identity Service Engine (ISE).

Active response to threats

For situations where it is necessary to respond to emerging threats, we will ensure appropriate steps through integration with CISCO network elements. If this is unavoidable, you can block endpoint communication, isolate part of the network, etc.

SNMP Appliance Monitoring

With incorporation of SNMP agent and trap functionality you are able to oversee MENDEL appliances with your current infrastructure monitoring solution.

MORE EFFICIENT OPERATIONS 

New upgrade management to all your appliances

Upgrade the whole Mendel deployment through a single point  = collector’s UI. Choose either “One click” multi upgrade or upgrade each sensor individually. Upgrade is performed by two step method, to keep sensor running for maximum time and shorten the maintenance time.

Mendel installation on common cloud services 

Amazon Web Services, Microsoft Azure and Google Cloud are now supported for deployment of Collector or Central Event Management (CEM).

Utilization of high-speed disks within MultiTier storage and optimized database queries

Use your fast disks not only for the operation of the system itself, but also for a much faster response of the user interface when displaying the „hot“ data and views of them. If your deployment does not have multi-tier storage with fast disks, we still bring you a faster response in the GUI by optimizing the database queries.

False Positives for limited time period

Hide events only for the time that is relevant and related to the maintenance of your infrastructure, tests, etc. Apply false positives with specific time frame and/or recurrence.

Conditional PCAP recording

Data captures can be triggered on-demand or by specified conditions (user-defined & event-based).

OT/ICS/SCADA

Asset discovery 

Ability to discover devices in network using various OT protocols to get asset details such as firmware versions, and many others.

Policy monitoring

We introduce a new script approach in IDS rules which allows you to define custom policy rules to monitor allowed values and perform whitelists/blacklists operations inside OT protocols like IEC104, MMS and many others.

ALL FEATURES – IT

CISCO ISE user identity integration and response
CISCO Firepower incident response
SNMP appliance monitoring & SNMP trap
Upgrade management over appliances
AWS, MS Azure and Google cloud deployability
High-speed disk utilization within multi-tier storage
False positives for limited time period
Trigger based PCAP recording
Processing netflow data with NAT information
Switch flow errors  from flags to real calculation
Connect Mendel sensor to secondary collector (HA)
Deactivate inactive Sensor on Collector
User Documentation available via GUI
Time validity of false positives
Connect Mendel sensor to secondary collector (HA)
Deactivate inactive Sensor on Collector 

FEATURES – OT / ICS

Asset Discovery
Parsing MQTT, COAP and Profinet protocols
Detection of LoRaWAN protocol

ENHANCEMENTS

Process VMware ESXi NSX-T IPFIX format
Add support for storing Suricata Variables in DB
Enhance update server update data sources
Semi-automated restoration of SMB backup
IDS signatures using the detected application
Display the logged-in user name on all pages
False positive change Priority field Default text
False positive not applicable into past by default
Import new JA3 hash codes from ja3er.com
Add description field into data exports
Hide user from managerial/security reports and email
Added assignee, reporter and date of last updated to Incident exports (PDF)
Reworked Firewall settings with new location in UI
Better explanation over data transfer between hosts in peers graph
Evaluate and add IPv6 multicast address into monitored subnets
System logs in mshell
CAT tool for ME localization 

OFFICIAL MENDEL PRODUCT SUPPORT

With release of version 3.7.0 full-service support will be provided for the versions 3.7.x and 3.6.x. Limited service support is provided for previous version 3.5.x. Versions 3.4.x and older are no longer supported, end-users with valid support and maintenance or active SW subscription can upgrade to the supported version(s).

About Version 2 Digital

Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

About GREYCORTEX
GREYCORTEX uses advanced artificial intelligence, machine learning, and data mining methods to help organizations make their IT operations secure and reliable.

MENDEL, GREYCORTEX’s network traffic analysis solution, helps corporations, governments, and the critical infrastructure sector protect their futures by detecting cyber threats to sensitive data, networks, trade secrets, and reputations, which other network security products miss.

MENDEL is based on 10 years of extensive academic research and is designed using the same technology which was successful in four US-based NIST Challenges.