The latest ransomware attack that broke out last Friday, affecting more than 200,000 computers across 150 countries by Sunday, once again highlighted the need for improved preparedness to respond to large-scale cyber incidents by implementing advanced security automation and orchestration solutions capable of containing the damage from such events. In this case, the attackers exploited a vulnerability in Windows Server Message Block (SMB) protocol, which had been discovered and kept quiet for exclusive use by the National Security Agency (NSA).
WannaCry, as the virus is called, is delivered via an email attachment and when executed, paralyzes computers running vulnerable Windows operating systems by encrypting their files. Once it encrypts a computer’s hard disk, WannaCry then spreads to vulnerable computers connected to the same network, and also beyond, via the Internet. This is in many ways a typical ransomware attack, infecting computers with a virus that has the ability to spread quickly to other vulnerable systems; however, the infection in this instance, and the speed at which it spread, was more intense than any other such attack in recent memory. The consensus among cyber security experts around the world is that the damage from this attack could have been reduced to a minimum, and more serious consequences could have been avoided, if organizations had been better prepared and had more effective cyber incident response plans and solutions in place.
Early Detection and Damage Containment via Automation and Orchestration
When affected by an attack such as WannaCry, after an organization’s computer system has been breached, the best thing that the organization can do is try to keep the incident under control by preventing the infection from spreading. There are various security solutions designed to achieve this end, but an automation and orchestration platform is arguably the best suited for the task. When an infected computer is detected, this platform can quickly isolate it in the early stages of an attack, blocking traffic to and from it to contain its spread, and thus reduce the business impact to a minimum.
Recovery and Remediation
Once containment is achieved, the platform provides organizations with the ability to quickly remediate the incident by guiding cybersecurity professionals through the entire process, using pre-defined playbook actions for a faster and more effective execution. The playbook actions can suggest the best remediation and recovery methods, and how to enforce them in the most effective manner. For instance, how to restore files and update the appropriate firewall rules.
All of the above is only a fraction of the capabilities of a typical automation and orchestration platform, a security tool that has become critical for any organization seeking to avoid the immense cost and long-lasting consequences of cyber-attacks such as WannaCry.
Cyber-attacks such as this one are only expected to become more common and more sophisticated in the future, and for this reason WannaCry should serve as an example of why now is the time for organizations serious about cyber security to focus on improving preparedness and containment capabilities through investment in advanced security automation and orchestration.
Cyber-attackers never stop inventing new and more creative methods and techniques that are supposed to be more difficult to prevent. One of the most common types of attacks nowadays are the DDoS attacks (Distributed Denial of Service attacks) , which are on the rise recently, unlike data breaches, according to the 2017 Cyber Incident & Breach Response Guide issued by the Online Trust Alliance.
Mitigating DDoS attacks is complicated and time-consuming. They often last several days and even weeks, bringing an organization’s operations to a complete halt for prolonged periods of time. It takes a coordinated effort from an organization’s CSIRT, C-level and its Internet Service Provider (ISP). Since it can take a lot of time to recover from a DDoS attack, it’s essential to have a response plan in place that is specifically designed to respond to these types of cybersecurity incidents. This will help reduce the team’s response time, contain the damage, and resume operations as soon as possible.
DDoS Attack Playbooks
In order to prepare for a future DDoS attack, it’s recommended that organizations utilize a cyber incident response platform, which has the ability todetect, predict and respond to various types of cybersecurity incidents. These platforms provide specialized automated playbooks for the different types of incident, allowing organizations to automate the immediate response to a cybersecurity event and give their SOC and CSIRT the time to focus on recovery and making the organization’s systems fully functional as soon as possible.
Effective Containment and Recovery
A typical DDoS attack playbook includes the key aspects of a cyber incident response, such as analysis, containment, remediation, recovery, and post-incident actions. By employing such a playbook, the organization can quickly determine the specific part of the infrastructure that has been affected by the attack, so that the team can know the necessary actions required to take in order to resolve the incident. A pre-defined playbook will help organizations contain the damage by notifying the SOC and CSIRT on how to block the DDoS attack based on the analysis performed by the incident response platform.
After you have taken the proposed actions to contain the incident, the playbook will guide you through the remediation process. It will involve contacting your ISP and notifying law enforcement, which is where a cyber incident response platform’s capability to create automated incident reports comes in handy, too.
Finally, if you are utilizing a cyber incident response platform, you will have the possibility to enhance your preparedness for future cybersecurity events, by creating statistical reports that contain all the necessary metrics, which you can use to adjust your response to different types of attacks.