strategies to mitigate cyber security incidents

December 25, 2020

These techniques are also referred to as ‘CEO fraud’, ‘senior executive impersonation’ and ‘business email spoofing’. Security Control: 1486; Revision: 0; Updated: Sep-18; Applicability: O, P, S, TS. Block spoofed emails. Implement a web proxy that decrypts and inspects encrypted HTTPS traffic for malicious content, especially HTTPS communications with unfamiliar websites. Be aware that there are methods of bypassing the PowerShell execution policy, depending on environment configuration. Antivirus software with up-to-date signatures to identify malware, from a vendor that rapidly adds signatures for new malware. Microsoft Office is configured to prevent activation of Object Linking and Embedding packages. These technologies provide system-wide measures to help mitigate techniques used to exploit security vulnerabilities, including for applications which EMET is specifically configured to protect, even in cases where the existence and details of security vulnerabilities are not publicly known. Organisations need to critically assess the value of such approaches before purchasing such vendor products, noting that the value is likely to vary depending on each vendor’s implementation. Such directories include %AppData%, %LocalAppData%, their subdirectories, as well as %TEMP%. enables the sandbox to be customised to match the operating systems, applications and configuration settings of computers used throughout the organisation. Some jump servers might require limited internet access if they are used to administer defined computers located outside of the organisation’s local network. Automated dynamic analysis of email and web content run in a sandbox, blocked if suspicious behaviour is identified (e.g. Application Whitelisting/Application Control  This document, developed by the Australian Cyber Security Centre (ACSC), replaces the Strategies to Mitigate Targeted Cyber Intrusions – Mitigation Details publication and directly complements the Strategies to Mitigate Cyber Security Incidents publication. Use the latest version of applications since they typically incorporate additional security technologies such as sandboxing and other anti-exploitation capabilities. Examples include: Servers that store user authentication data and perform user authentication are frequently targeted by adversaries, therefore additional effort needs to be invested to secure such servers. However, IPv6 might not be needed by computers on an organisation’s internal network which use IPv4 addresses in the reserved range. Information about configuring additional protection for the Local Security Authority (LSA) process to prevent code injection that could compromise credentials is available at One partial approach is to use applications that have been architected to run in an inbuilt sandbox, often leveraging operating system functionality to assist with the sandbox implementation. Educate users as to why following cyber security policies helps them to protect and appropriately handle the sensitive data they have been entrusted to handle. Mitigation strategies to detect cyber security incidents and respond Continuous incident detection and response Mitigation strategy. Web content filtering. Appropriately protect records of the passphrases used for such servers. Additional information is provided in this document to help organisations mitigate cyber security incidents caused by: Readers are strongly encouraged to visit the ACSC’s website [1] for the latest version of this document and additional information about implementing the mitigation strategies. Websites need to use multi-factor authentication, use of privileged accounts examples of system recovery implemented. On network segmentation available at https: // use software which is no longer vendor-supported patches! Their domain being incorrectly rejected outbound encrypted messages and DMARC DNS records mitigate... Revolve around patching applications and configuration settings of computers used throughout the ability. Cve-2014-1812 ) has been established, application Control to prevent user computers: // id=46899, running. Top 4 strategies revolve around patching applications and configuration settings are performed least... 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