Add Context and Enrich Alert Information for a More Effective Response with DFLabs and ArcSight

Responding to a new security incident in the fastest possible time frame is critical for any security operations center (SOC) or computer security incident response team (CSIRT), but having the necessary information at your fingertips is key in order to help improve response times and appropriately deal with the threat at hand. In this blog post we’ll take a closer look at how security teams can increase the efficiency and effectiveness of their response by adding context and enrichment to the alert information directly from ArcSight, when utilizing DFLabs’ Security Orchestration, Automation and Response (SOAR) platform and its many other bidirectional integrations.

The Problem

Organizations are generating more log data than ever before and are increasingly turning to SIEM tools to help manage, correlate and alert on potential events from this large quantity of data. Once data is correlated and an alert is generated, enriching alert data is often a manual task which consumes a significant amount of analysts’ time. Pivoting from a single alert or from enriched information is often also a manual process, requiring many more custom written queries within the SIEM. Enriched and additional data must then be correlated manually by the analyst before it becomes actionable.

On a daily basis an analyst will face a number of challenges and is likely to be asking themselves the following questions:

  1. How can I use the SIEM logs to add context to a security event?
  2. How can I enrich information from the initial security alert?
  3. How can I pivot from the initial security alert to further my investigation?
The DFLabs and ArcSight Solution

DFLabs and MicroFocus ArcSight bring SOAR and SIEM together to allow rapid, informed responses to security incidents based on enriched, actionable information. DFLabs’ IncMan SOAR platform allows users to automatically query ArcSight to pivot from an initial alert to gather increase insight into the activity within the organization. IncMan also allows users to enrich information retrieved from ArcSight, such as IP addresses, hostnames and domains, using any number of IncMan’s other integrations.

About MicroFocus ArcSight

ArcSight is an industry-leading Security Information and Event Management (SIEM) solution from MicroFocus. ArcSight collects and analyzes events from across systems and security tools. It detects security threats in real time so that analysts respond quickly, and it scales to meet demanding security requirements. ArcSight’s advanced distributed correlation engine, helps security teams detect and respond to internal and external threats, reduces response time from hours or days to just minutes.

Use Case

To get a real understanding of how the two solutions work together, here is a simple use case in action.

A Web Application Firewall (WAF) has observed a potential attack against an application server in the organization’s DMZ. IncMan automatically responds by initiating an appropriate runbook for the alert. The runbook begins by performing basic enrichment on the source IP address of the malicious traffic. This basic enrichment is followed by a query for IP reputation information on the source IP address from the organization’s threat reputation service of choice.  

Following the threat reputation search, ArcSight is queried for any other events which have been recently generated by the source IP address. If ArcSight returns any other recent events generated by the source IP address, or the source IP address has a negative threat reputation, the severity of the incident is automatically upgraded to High. The analyst is then presented with a user choice decision to determine if the source IP address should be blocked at the perimeter firewall. If the analyst chooses to automatically block the source IP address, a ticket will be created in ArcSight Enterprise Security Manager (ESM) to notify the appropriate teams to follow up on the emergency change according to the organization’s policies.

These actions are followed by a second query to ArcSight, this time for any other recent events involving the web application server. If ArcSight returns any other recent events generated from the web application server, the severity of the incident is automatically upgraded to High (unless it has already previously been upgraded).  The runbook concludes by performing a query of the organization’s endpoint detection solution for all recent events from the web application server. This information will be retained for review by the analyst during the investigative process.

ArcSight

 

ArcSight Actions

In summary, here are the actions available to security analysts by using ArcSight.

Enrichment:

  • Get Active List Entries
  • Search Into Events

Containment:

  • Add Active List Entries
  • Clean Active List Entries

Notification:

  • Create Ticket
  • Get Ticket
  • Update Ticket

Integrating ArcSight with DFLabs’ IncMan SOAR allows organizations to efficiently triage the volume of alerts being generated by the SIEM, automatically prioritizing those alerts which may pose the greatest risk to the organization. By automating and orchestrating the SIEM with other security solutions, IncMan SOAR can automatically enrich the alert information, then pivot based on the enriched information as an analyst would do during a manual investigation. This ability to automatically enrich and pivot allows IncMan to more accurately prioritize incidents which may initially seem innocuous.  

Security Event Automation and Orchestration in the Age of Ransomware

We have recently experienced a devastating wave of ransomware attacks such as Wannacry or ‘WannCrypt’ which spread to more than 200 countries across the globe. While Russia was hit hard, Spain and the United Kingdom saw significant damage to their National Health Services. Hospitals were forced to unplug their computers to stop the malware from spreading even further. This is just one of the security threats posed by special malware that encrypts computer files, network file shares, and even databases thereby preventing user access (Green 18-19). It happens in spite of heavy investments in a wide array of security automation and orchestration solutions and staff required to triage, investigate and resolve threats.

The primary problem is that organizations seem to be losing the battle against cyber attackers (Radichel, 2). The security administrators are overburdened and compelled to manually perform time-consuming and repetitive tasks to identify, track, and resolve security concerns across various security platforms. Notwithstanding the time and effort, it is difficult to analyze and adequately prioritize the security events and alerts necessary to protect their networks. Still, the inadequate visibility into the present activities of the security teams, metrics and performance leave security managers struggling to justify additional resources. It has long been accepted that the organizational efficiency depends heavily on the ability of the security system to reduce false positives so that analysts can focus on the critical events along with indicators of compromise.

Security event automation and orchestration ensures that an organization detects a compromise in real time. A rapid incident response ensures a quick containment of the threat. Through the automation of common investigation enrichment and response actions, as well as the use of a centralized workflow for performing incident response, it is possible to minimize response times and thus make the organization more secure. Security events automation and orchestration expedites workflows across the threat life-cycle in various phases. However, for the security team to deploy security automation and orchestration of event-driven security, there must be access to data concerning events occurring in the environment that warrant a response. To effectively employ event-driven security, automation should be embedded into processes that could introduce new threats to the environment (Goutam, Kamal and Ingle, 431). The approach requires that there be a way to audit the environment securely and trigger event based on data patterns that indicate security threat or intrusion. Of particular importance, continuous fine tuning of processes is required to make certain the events automation and orchestration being deployed is not merely automating the process, but providing long-term value in the form of machine learning and automated application of incident response workflows that have previously resolved incidents successfully.

At a time of increased cybersecurity threats, a structured approach can expedite the entire response management process from event notification to remediation and closure through automated orchestration and workflow. An automatic gathering of key information, the building of decision cases and the execution of critical actions to prevent and/or remediate cyber threats based on logical incident response processes are enabled. With security orchestration and event automation, various benefits are realized such as cost effectiveness, mitigation of security incidents and improved speed and effectiveness of the response. Hence, security event automation and orchestration is the real deal in containing security threats before real damage takes place.

A Weekend in Incident Response #11: Protecting Trade Secrets and Personal Information Through Cyber Incident Response Plans

Protecting customer data and intellectual property are among the top priorities for government agencies, as well as corporations across many different industries, such as healthcare, finance, entertainment, and insurance, to name a few. The main goal of data breaches – which are extremely common in our digital world – is stealing confidential customer information or valuable intellectual property. Banks, hospitals, insurance companies, along with government institutions, are often the target of cyber crimes involving fraud and intellectual property theft. Considering that these types of breaches – which are not always avoidable or preventable – can have wide-ranging consequences for every organization. They must take a broad set of precautionary measures in order to minimize the damage and recover as soon as possible. Among those measures is devising incident response plans, as well as adopting a platform that can keep cybersecurity incidents under control, by helping you determine what type of cyber attack your organization is under, how you should prioritize your response, and what you can do to contain the damage.

Fast Incident Triage

If an organization uses a cybersecurity platform with robust incident response capabilities, the organization’s leadership can have peace of mind that even if they get attacked, they will be able to solve the incident as quickly and as efficiently as possible.

One of the key elements to an effective incident response is incident triage. Organizations should acquire a cybersecurity platform that offers this feature, which is essential for improving its CSIRT’s efficiency. Incident triage is important because it allows your team to quickly analyze what happened and determine what actions they need to take first, enabling a continuation of the operations within the organization and containment of the damage.

Case Management

Once a data breach is detected, and the incident triage process is completed, some of the next steps involve managing the impact and preparing for potential litigation, which organizations often face when they’ve experienced a data breach. To that end, corporations and government agencies should use a platform that provides litigation support, which covers several aspects, such as customizable reports needed for material disclosures, as well as the preservation of evidence and chain-of-custody tracking to preserve all artifacts and record all activities. Allowing a proper investigation that could help your organization avoid crippling potential legal liabilities.

In conclusion – the mentioned features are crucial for protecting customer data and trade secrets in the era of data breaches. Organizations can easily take advantage of extra robust feature functionality by obtaining a cybersecurity platform that incorporates all those capabilities necessary for a complete solution that meets and exceeds your requirements.