Blueprint 06

SOC/IR Evidence Package

Incident response evidence bundles with chain-of-custody guarantees for forensic analysis. Produce evidentiary-grade packages with cryptographic integrity proofs suitable for audits and disputes.

CrowdStrike, Palo AltoFIG. 8, Claims 8-9

1. Target System

Security Operations Centers (SOC), Incident Response (IR) teams, digital forensics investigators, and legal/compliance teams requiring tamper-evident evidence for breach investigations, litigation support, and regulatory reporting.

2. Threat Model

Evidence tampering during incident investigation

Chain-of-custody breaks during handoffs

Timestamp manipulation in log files

Incomplete evidence collection for legal proceedings

Attribution challenges with contested evidence

3. Integration Points

SIEM Integration

Real-time evidence capture from security event sources

Chain-of-Custody

Cryptographic handoff receipts between investigators

Forensic Packaging

Evidentiary-grade bundle generation for audits

Timeline Attestation

TSA-backed timestamp proofs for all artifacts

┌─────────────────────────────────────────────────────────────────┐
│                    INCIDENT RESPONSE WORKFLOW                   │
│                                                                 │
│  ┌──────────────┐    ┌──────────────┐    ┌──────────────┐      │
│  │    SIEM      │───▶│   Evidence   │───▶│   Forensic   │      │
│  │   Events     │    │   Collector  │    │   Analyst    │      │
│  └──────────────┘    └──────┬───────┘    └──────┬───────┘      │
│                             │                    │               │
│                    ┌────────▼────────┐          │               │
│                    │   Attestation   │◀─────────┘               │
│                    │     Engine      │                          │
│                    │  ┌──────────┐   │                          │
│                    │  │ Evidence │   │                          │
│                    │  │  Chain   │   │                          │
│                    │  └──────────┘   │                          │
│                    └────────┬────────┘                          │
│                             │                                    │
│              ┌──────────────┼──────────────┐                    │
│              ▼              ▼              ▼                    │
│         ┌────────┐    ┌────────┐    ┌────────┐                 │
│         │Custody │    │Timeline│    │Evidence│                 │
│         │Receipt │    │ Proof  │    │ Bundle │                 │
│         └────────┘    └────────┘    └────────┘                 │
│                             │                                    │
│                    ┌────────▼────────┐                          │
│                    │   Legal/Court   │                          │
│                    │   Admissible    │                          │
│                    └─────────────────┘                          │
└─────────────────────────────────────────────────────────────────┘

4. Evidence Artifact Types

Log Artifacts

Attested SIEM events, system logs, network captures

Memory Snapshots

Hashed memory dumps with integrity chain

Timeline Events

Cryptographically ordered incident timeline

Custody Records

Signed handoff receipts for evidence transfer

5. Chain-of-Custody Workflow

Initial Collection

Evidence collected and hashed at source with TSA timestamp

Custody Transfer

Signed handoff receipt generated for each transfer between parties

Analysis Attestation

Investigator actions recorded in evidence chain

Final Package

Complete evidence bundle with offline verifier for court submission

6. Measurable Outcomes

Evidentiary-grade records with cryptographic integrity proofs

Reduces mean-time-to-containment with streamlined collection

Eliminates chain-of-custody challenges in legal proceedings

Integration with leading SIEM and EDR platforms

Sample Bundle

SOC/IR evidence variant with custody chain demo

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