1 Open-Source Release MRS-001

The IDPS-ESCAPE source code and technical documentation SHALL be made available as open-source software using either a permissive or a copyleft software license.

Attribute Value
type B
rationale To comply with organizational and project constraints.
importance 5
urgency 1
vm I
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

2 Command & Control MRS-002

The IDPS-ESCAPE system architecture SHALL include a centralized subsystem, throughout called command-and-control (C&C), for updating user-exposed settings of subsystems tackling data collection, intrusion detection and prevention.

Child links: HARC-001 ADBox subsystem, SRS-001 Centralized C&C Deployment, SRS-002 Endpoint Status Monitoring, HARC-003 IDPS-ESCAPE context

Attribute Value
type A
rationale To centralize and simplify agent/sensor configuration management.
urgency 5
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

3 Agent Data Centralization MRS-003

The IDPS-ESCAPE system architecture SHALL include end-point monitoring agents/sensors that gather host and network data and relay the said data back to the C&C.

Child links: HARC-003 IDPS-ESCAPE context

Attribute Value
type A
rationale To enable a multi-node deployment of monitoring endpoints and centralization of data collection.
importance 5
urgency 5
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

4 Multivariate Anomaly Detection MRS-004

The IDPS-ESCAPE system architecture SHALL include a multivariate anomaly detection (AD) subsystem to detect anomalies across at least two features/dimensions in at least one of the following types of security event capturing data sets: host-based and network-based.

Child links: HARC-001 ADBox subsystem, HARC-002 ADBox architecture, HARC-003 IDPS-ESCAPE context, SRS-037 Anomaly-Based NIDS, SRS-040 Data Management Subpackage, SRS-041 Time Management Package

Attribute Value
type A
rationale To detect deviations from an a priori normal baseline system behavior, possibly caused by malicious actors.
importance 5
urgency 4
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

5 Host-based Intrusion Detection MRS-005

The IDPS-ESCAPE system architecture SHALL include a host-based intrusion detection system (HIDS) with agents deployed on the of hosts' monitored system, that can be enabled/disabled by the user.

Child links: HARC-003 IDPS-ESCAPE context, SRS-003 HIDS Agent Deployment, SRS-004 HIDS Agent Management

Attribute Value
type A
rationale To support host-based IDS.
importance 5
urgency 5
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

6 NIDS Support MRS-006

The IDPS-ESCAPE system architecture SHALL include a network-based intrusion detection system (NIDS) covering channels between endpoints running IDPS-ESCAPE subsystems, that can be enabled/disabled by the user.

Child links: HARC-003 IDPS-ESCAPE context, SRS-005 Network Monitoring Control

Attribute Value
type A
rationale To support network-based IDS.
importance 5
urgency 5
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

7 Intrusion Prevention MRS-007

The subsystems of IDPS-ESCAPE SHOULD include intrusion prevention (IP) capabilities.

Child links: HARC-003 IDPS-ESCAPE context, SRS-006 Centralized NIDPS Prevention

Attribute Value
type F
rationale To be able to take reactive corrective measures and mitigate intrusions.
importance 3
urgency 3
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

8 Network Capture Forwarding MRS-008

The IDPS-ESCAPE network sensors SHOULD be able to capture and forward raw network traffic to the C&C server.

Child links: HARC-003 IDPS-ESCAPE context, SRS-007 Raw Traffic Capture

Attribute Value
type F
rationale To collect events for threat hunting and CTI operations, reducing the NIDS overhead and to do customized AD.
importance 3
urgency 4
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

9 Docker Deployment Option MRS-009

The IDPS-ESCAPE end-point monitoring components MAY be deployed in Docker containers.

Child links: SRS-008 Dockerized NIDS Deployment

Attribute Value
type O
rationale To ensure the following properties: consistent and reproducible environments, isolation, resource efficiency, scalability, portability, fast spawning and shutdown, improved CI/CD, support of micro services architecture, improved dependency management.
importance 4
urgency 3
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

11 Signature-based Host IDS MRS-011

IDPS-ESCAPE SHALL include a signature-based host intrusion detection engine.

Child links: HARC-003 IDPS-ESCAPE context, SRS-009 Signature-Based HIDS

Attribute Value
type F
rationale To build on the mature and existing rule-based detection and CTI body of knowledge and to mitigate low AD detection risk.
importance 5
urgency 5
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

12 XDR & SIEM Integration MRS-012

The IDPS-ESCAPE system architecture SHALL include an XDR & SIEM subsystem (see the system concept for definitions).

Child links: HARC-003 IDPS-ESCAPE context, SRS-010 Centralized Threat Management

Attribute Value
type A
rationale To ingest data from tools in an security technology stack to create greater context for Security Operations Center (SOC) teams to perform faster threat detection, investigation, and response.
importance 5
urgency 4
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

13 Visual Dashboard MRS-013

The IDPS-ESCAPE system architecture SHOULD include a subsystem providing a data visualization dashboard capable of presenting data collected by the endpoint monitoring agents; precise feature definitions are deferred to system requirement specifications (SRS).

Child links: HARC-003 IDPS-ESCAPE context, SRS-011 Network Event Visualization, SRS-012 Host Event Visualization, SRS-013 HIDS Agent Status Panel

Attribute Value
type A
rationale To improve accessibility and easy-of-use for IDPS-ESCAPE end-users (e.g., security engineers, CTI analysts, etc.).
importance 4
urgency 4
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

14 Data Extraction API MRS-014

IDPS-ESCAPE SHALL provide an API for retrieving data obtained from the IDPS-ESCAPE endpoint monitoring agents.

Child links: SRS-014 Event Decoding & Transformation, SRS-015 Custom Rule Support

Attribute Value
type I
rationale To enable programmatic access to data gathered by IDPS-ESCAPE endpoint agents.
importance 4
urgency 4
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

15 Software Configuration Management MRS-015

The C&C subsystem of IDPS-ESCAPE SHALL provide the user with a software configuration management (SCM) mechanism (e.g., a CLI or configuration files) to set the user-adjustable parameters of subsystems and modules scoped within the C&C system boundary.

Child links: SRS-016 Indexer Credential Management, SRS-017 Custom Data Source, SRS-018 ML Hyperparameter Tuning, SRS-019 Datatype Transformation Map, SRS-020 Ingestion Field Update, SRS-021 Default Use Case Update, SRS-022 Indexer Credentials Update

Attribute Value
type F
rationale To enable centralize management of subsystems controlled by the C&C.
importance 4
urgency 3
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

16 Agent (De)Registration MRS-016

The SCM mechanism SHALL provide a (de)registration solution for the removal and addition of end-point monitoring agents.

Child links: SRS-023 Agent Registration Process

Attribute Value
type F
rationale To enable a non-static configuration of monitored nodes.
importance 4
urgency 3
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

17 Monitoring Frontend MRS-017

The IDPS-ESCAPE system architecture SHALL include a frontend subsystem presenting monitoring outcomes to the end-user, with the specific outcome definitions deferred to system requirement specifications (SRS).

Child links: HARC-003 IDPS-ESCAPE context, SRS-043 AD Data Visualization

Attribute Value
type A
rationale To allow end-users to monitor complex indicators more easily.
importance 3
urgency 2
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

18 Data Management Subsystem MRS-018

The IDPS-ESCAPE system architecture design SHALL include a data management subsystem aimed at consolidating access to data obtained from endpoint monitoring agents such as events, alerts and statistics.

Child links: HARC-003 IDPS-ESCAPE context, SRS-024 Event Querying Capability, SRS-042 Prediction Shipping Feature

Attribute Value
type A
rationale To simplify programmatic access to security alert and event data and to ensure a single source of truth.
importance 4
urgency 3
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

19 3rd-Party Open-source Signature-based NIDS MRS-019

The IDPS-ESCAPE architecture SHOULD integrate third-party open-source tools for signature-based intrusion detection.

Child links: HARC-003 IDPS-ESCAPE context

Attribute Value
type A
rationale To capitalize on and build upon existing open-source capabilities.
importance 2
urgency 1
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

20 Platform Independence MRS-020

The IDPS-ESCAPE architecture SHALL rely on a platform-independent solution (e.g., containerization-based) enabling the C&C subsystem and endpoint monitoring agents to run on the following operating systems: Windows 10/11 64-bit, MacOS 10.12 above and GNU/Linux-based distributions based on Debian such as Ubuntu.

Child links: HARC-003 IDPS-ESCAPE context, SRS-044 Platform-Independent Deployment, SRS-046 Cross-Platform ADBox Deployment

Attribute Value
type A
rationale To ensure cross-platform compatibility and portability.
importance 3
urgency 1
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

21 IaC Deployment MRS-021

The deployment solution of IDPS-ESCAPE for the C&C subsystem and the endpoint monitoring agents SHALL make use of installation scripts (e.g., Shell or Python) that can be integrated into infrastructure-as-code paradigms used for automating scalable VM-based technology stacks used in cloud environments.

Child links: SRS-049 Anomaly Shipping to Indexer

Attribute Value
type F
rationale To enable deployments in cloud infrastructures.
importance 4
urgency 2
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

22 Network Endpoint Monitoring MRS-022

The IDPS-ESCAPE architecture SHALL define endpoint monitoring for networked nodes capable of running IDPS-ESCAPE agents/sensors and relying on network connections between the said agents and the C&C subsystem.

Child links: HARC-003 IDPS-ESCAPE context

Attribute Value
type A
rationale To allow sensors/agents and the central server to be deployable across multiple distinct nodes.
importance 4
urgency 3
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

23 MITRE ATT&CK Mapping MRS-023

The SIEM subsystem SHOULD include threat enumeration based on a mapping of security incident detections to MITRE ATT&CK entries.

Child links: SRS-025 MITRE ATT&CK Mapping

Attribute Value
type F
rationale To improve and speed up threat detection and classification, thereby facilitating CTI analysis.
importance 3
urgency 3
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

24 TIP API Integration MRS-024

The IDPS-ESCAPE system architecture SHOULD include a mechanism for an API-based integration with at least one threat intelligence platform (TIP), e.g., MISP, with integration here referring to sending detection alert information to a TIP and receiving additional threat intelligence from the said TIP.

Attribute Value
type I
rationale To enhance cyber threat Intelligence capabilities by capitalizing on mature TIPs.
importance 3
urgency 3
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

25 Threat Detection API MRS-025

IDPS-ESCAPE SHALL provide an API for retrieving threat detection events and security information gathered by agents/sensors.

Child links: SRS-026 TIP Data Export

Attribute Value
type I
rationale To enable programmatic access, which would also in turn support integration with SATRAP-DL.
importance 4
urgency 4
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

26 C5-DEC Development Model MRS-026

IDPS-ESCAPE SHALL be designed and developed following the C5-DEC model, methodology, and tools.

Child links: SRS-045 High-Level Architecture Overview

Attribute Value
type C
rationale To comply with project requirements and to follow a consistent and well-defined process, while improving development security.
importance 5
urgency 5
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

27 Secure Inter-Component Communication MRS-027

Communication between IDPS-ESCAPE subsystems/modules/components that do not reside in the same system/trust/cryptographic boundaries SHALL occur over authenticated and encrypted channels.

Attribute Value
type S
rationale To ensure confidentiality and integrity with respect to malicious actors (adversaries).
importance 5
urgency 3
vm A
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

28 Standardized AD Input MRS-028

Security events and alerts used as raw input to the AD subsystem SHALL either follow a standardized data scheme or an open-source specification (e.g., syslog).

Attribute Value
type C
rationale To foster adoption, improve data management efficiency and robustness, enable code reuse (parsing, (de)serialization, and marshalling libraries), and to avoid proprietary formats and vendor lock-in.
importance 2
urgency 1
vm I
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

29 Data Collection Scalability MRS-029

IDPS-ESCAPE endpoint monitoring SHALL be able to monitor at least 5 endpoint nodes capable of running IDPS-ESCAPE sensors/agents.

Attribute Value
type O
rationale To address stakeholder scalability needs.
importance 3
urgency 2
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

30 Deep Learning Technique MRS-030

The AD subsystem SHALL use an ML technique to detect anomalies, relying on a deep learning method, with the definition of the concrete AD solution traced to the mathematical specification of AD for the selected algorithm.

Child links: SRS-027 ML-Based Anomaly Detection, SRS-038 Joint Host-Network Training, SRS-047 Interactive Use Case Builder, SRS-048 Default Detector Training

Attribute Value
type F
rationale To address stakeholder needs and project proposal requirements and constraints.
importance 4
urgency 4
vm A
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

31 Multiple ML Techniques MRS-031

The AD subsystem MAY use several different ML techniques to detect anomalies.

Child links: HARC-002 ADBox architecture, SRS-028 Algorithm Comparison Feature, SRS-039 Algorithm Selection Option

Attribute Value
type F
rationale To allow for the use of different types of data and methods to consolidate, improve, validate and extend AD capabilities.
importance 1
urgency 1
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

32 Host and Network Ingestion MRS-032

IDPS-ESCAPE SHALL provide a data ingestion solution capable of retrieving endpoint observation data from both host and network events.

Child links: HARC-001 ADBox subsystem, HARC-002 ADBox architecture, HARC-003 IDPS-ESCAPE context, SRS-029 Host & Network Ingestion

Attribute Value
type F
rationale To enable holistic system monitoring.
importance 5
urgency 4
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

33 API Data Retrieval MRS-033

The AD subsystem SHALL retrieve data via the IDPS-ESCAPE API.

Child links: HARC-001 ADBox subsystem, HARC-002 ADBox architecture, HARC-003 IDPS-ESCAPE context

Attribute Value
type F
rationale To provide consolidated raw data capturing host and network level data for detecting anomalies.
importance 4
urgency 5
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

34 Standardized AD Output MRS-034

The AD subsystem SHALL output anomaly detection events to a log file using a machine-readable format (e.g., YAML, syslog).

Child links: SRS-030 AD Results Visualization, SRS-031 Training Loss Visualization, SRS-032 Predicted Anomalies Visualization

Attribute Value
type C
rationale To ensure automation, programmatic access, wide and easy adoption, code reuse.
importance 3
urgency 3
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

35 Secure Log Storage MRS-035

The C&C subsystem SHALL store log files containing anomaly detection events as well as detection and observation data originating from endpoint monitoring agents on nodes located within the same trust boundary as the C&C subsystem.

Attribute Value
type S
rationale To ensure confidentiality and integrity with respect to adversaries.
importance 4
urgency 3
vm A
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

36 Secure pcap Storage MRS-036

The C&C subsystem SHALL store pcap files (if any) on nodes located within the same trust boundary as the C&C subsystem.

Attribute Value
type S
rationale To ensure confidentiality and integrity with respect to adversaries.
importance 4
urgency 3
vm A
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

37 Multiple Deployment Models MRS-037

The IDPS-ESCAPE architecture SHOULD define at least two deployment models for network-based intrusion detection, one relying on a monitoring and detection (MD) engine running on each monitored node, and another relying on a single MD receiving consolidated raw input originating from multiple monitored nodes, e.g., using channel redirection.

Child links: HARC-003 IDPS-ESCAPE context, SRS-033 Remote Endpoint Deployment

Attribute Value
type O
rationale To provide flexibility and potential for adapting and improving performance.
importance 3
urgency 3
vm R
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

38 pcap Support MRS-038

IDPS-ESCAPE SHOULD capture network traffic using a pcap-based API.

Attribute Value
type C
rationale To ensure reuse, wide adoption and known standards-based arguments.
importance 2
urgency 2
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

39 Offline AD MRS-039

The AD subsystem SHALL be able to perform off-line AD using static input, e.g., static data sets compiled from a pcap-based API or SIEM indices.

Child links: HARC-001 ADBox subsystem, HARC-002 ADBox architecture, HARC-003 IDPS-ESCAPE context, SRS-035 Offline Anomaly Detection

Attribute Value
type F
rationale To mitigate the risk of poor online detection as well as design and implementation obstacles.
importance 2
urgency 2
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

40 Signature-Based NIDS MRS-040

IDPS-ESCAPE SHALL include a signature-based network intrusion detection engine.

Child links: HARC-003 IDPS-ESCAPE context, SRS-036 Custom NIDS Rules

Attribute Value
type F
rationale To build on the mature and existing rule-based detection and CTI body of knowledge and to mitigate low AD detection risk.
importance 5
urgency 5
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha

41 Standalone AD Subsystem MRS-041

The AD subsystem SHALL run as an independent process, i.e., as a standalone UNIX process.

Child links: HARC-001 ADBox subsystem, HARC-002 ADBox architecture, HARC-003 IDPS-ESCAPE context

Attribute Value
type A
rationale To ensure autonomy, self-sufficiency, extensibility, flexibility, and to minimize dependency on third-party tools.
importance 3
urgency 3
vm T
acceptance-criteria Successful validation according to the corresponding test case specification
release Alpha