Signature-based antivirus software is a type of security software that uses signatures to identify malware. Signatures are bits of code that are unique to a specific piece of malware. When signature-based antivirus software detects a piece of malware, it compares the signature to its database of known signatures12. If a match is found, the software can do three things to provide protection:

Alert system administrators: The software can notify the system administrators or the users about the malware detection, and provide information such as the name, type, location, and severity of the malware. This can help the administrators or the users to take appropriate actions to prevent further damage or infection3.

Quarantine the infected file: The software can isolate the infected file from the rest of the system, and prevent it from accessing or modifying any other files or processes. This can help to contain the malware and limit its impact on the system4.

Delete the infected file: The software can remove the infected file from the system, and prevent it from running or spreading. This can help to eliminate the malware and restore the system to a clean state4.

What is a signature-based antivirus? - Info Exchange

What is a Signature and How Can I detect it? - Sophos

How Does Heuristic Analysis Antivirus Software Work?

What Is Signature-based Malware Detection? | RiskXchange

In addition to local analysis, Cortex XDR can send unknown files to WildFire for discovery and deeper analysis to rapidly detect.

Prisma Access provides firewall as a service (FWaaS) that protects branch offices from threats while also providing the security services expected from a next-generation firewall. The full spectrum of FWaaS includes threat prevention, URL filtering, sandboxing, and more.

 A SIEM (Security Information and Event Management) is a system that collects, analyzes, and correlates security logs from multiple sources, such as endpoints, firewalls, servers, etc. A SIEM can provide a centralized and comprehensive view of the security posture of an organization, as well as detect and respond to threats. Configuring endpoints to forward logs to a SIEM is the recommended method for collecting security logs from multiple endpoints, as it reduces the network bandwidth and storage requirements, simplifies the log management process, and enables faster and more effective security analysis. Leveraging an EDR (Endpoint Detection and Response) solution to request the logs from endpoints is not recommended, as it may cause performance issues on the endpoints, increase the network traffic, and create a dependency on the EDR solution. Connecting to the endpoints remotely and downloading the logs is not recommended, as it is a manual and time-consuming process, prone to errors and inconsistencies, and may expose the endpoints to unauthorized access. Building a script that pulls down the logs from all endpoints is not recommended, as it requires technical skills and maintenance, may not be compatible with different endpoint platforms, and may introduce security risks if the script is compromised or misconfigured. References:

Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET) - Palo Alto Networks

Fundamentals of Security Operations Center (SOC)

10 Palo Alto Networks PCCET Exam Practice Questions - CBT Nuggets

Layer 4 of the TCP/IP model is the transport layer, which is responsible for providing reliable and efficient data transmission between hosts. The transport layer can use different protocols, such as TCP or UDP, depending on the requirements of the application. The transport layer also performs functions such as segmentation, acknowledgement, flow control, and error recovery. 1

The transport layer of the TCP/IP model corresponds to three layers of the OSI model: the transport layer, the session layer, and the presentation layer. The session layer of the OSI model manages the establishment, maintenance, and termination of sessions between applications. The session layer also provides services such as synchronization, dialogue control, and security. The presentation layer of the OSI model handles the representation, encoding, and formatting of data for the application layer. The presentation layer also performs functions such as compression, encryption, and translation. 23

Forensics in a Security Operations process refers to collecting raw data needed to complete the detailed analysis of an investigation. Forensic analysis is a crucial step in identifying, investigating, and documenting the cause, course, and consequences of a security incident or violation. Forensic analysis involves various techniques and tools to extract, preserve, analyze, and present evidence in a structured and acceptable format. Forensic analysis can be used for legal compliance, auditing, incident response, and threat intelligence purposes. References:

Cyber Forensics Explained: Reasons, Phases & Challenges of Cyber Forensics

SOC Processes, Operations, Challenges, and Best Practices

What is Digital Forensics | Phases of Digital Forensics | EC-Council

● Type 1 (native or bare metal). Runs directly on the host computer’s hardware

● Type 2 (hosted). Runs within an operating system environment