Immutable Evidence Storage with
Automated Forensic Chain-of-Custody

Threat model & design assumptions

GhostLogic is not a SIEM, not an EDR, and not here to win a "who found it first" contest. It's designed to win the "who can still prove what happened six months later" contest.

• • Assume endpoints will be compromised, wiped, or reimaged.
• • Assume some admins will have bad days or bad incentives.
• • Assume attackers will try to poison logs and AI models.
• • Assume you will, eventually, be asked to defend the record under oath.

Every part of the architecture exists to make those assumptions survivable.

Immutable Evidence Storage Architecture

Immutable evidence storage is the foundation of GhostLogic's forensic mesh. Once evidence is captured from an endpoint, it is written to append-only object storage that cannot be modified or deleted by any user, administrator, or attacker—even with root access to your infrastructure.

Multi-Tier Storage Strategy

• Hot Tier (KV Store): Recent evidence metadata for fast queries. Digital forensics experts can immediately access the last 30 days of activity across all endpoints.
• Warm Tier (D1 SQL): Queryable timeline database for correlation analysis. Full SQL support for complex forensic queries across months of historical data.
• Cold Tier (R2/S3/GCS): Immutable evidence storage for long-term retention. Automatic replication across multiple cloud providers ensures evidence survives ransomware attacks, infrastructure failures, or intentional destruction attempts.

Cryptographic Integrity Verification

Every evidence artifact includes SHA-256 hashes computed at collection time. Merkle trees provide efficient batch verification. Any tampering attempt is immediately detectable, maintaining the forensic evidence chain required for court admissibility.

Automated Forensic Chain-of-Custody

The forensic chain-of-custody tracks every person, system, and process that touched a piece of evidence. GhostLogic automates this documentation, ensuring digital forensics experts can prove evidence integrity in legal proceedings.

Chain-of-Custody Components

• Collection Timestamp: Precise nanosecond-resolution timestamps using NTP-synchronized clocks. Meets legal requirements for evidence timeline reconstruction during ransomware recovery services.
• Source Attribution: Cryptographically signed evidence includes endpoint identity, collector version, and collection method. No ambiguity about where evidence originated.
• Access Audit Trail: Every query, export, or analysis action is logged with user identity, timestamp, and action type. Digital forensics experts can prove who accessed evidence and when.
• Integrity Verification: Continuous hash validation ensures evidence hasn't been altered since collection. Automated re-verification on every access maintains chain-of-custody integrity.

Court-Admissible Evidence Packages

Export complete evidence packages with all chain-of-custody documentation in a single archive. Includes evidence artifacts, cryptographic proofs, access logs, and automated integrity reports. Accepted by forensic analysts, legal teams, and courts requiring rigorous evidence standards.

Integration with Incident Response Plans

GhostLogic integrates seamlessly into existing incident response plans through standard APIs and webhook integrations. When your incident response plan activates, forensic evidence is immediately available without manual collection delays.

SIEM & SOC Integration

• Real-time Streaming: Push evidence to Splunk, Elastic, Azure Sentinel, or custom SIEM platforms in real-time using CEF, JSON, or STIX formats.
• Alerting & Automation: Configure automated responses when forensic indicators match your threat intelligence. Integrate with PagerDuty, Slack, or ServiceNow for immediate notification of cyber forensics teams.
• Forensic Evidence Export: One-click exports of complete forensic evidence chains for offline analysis. Perfect for air-gapped environments or when sharing evidence with external digital forensics experts.

Ransomware Recovery Services

During ransomware incidents, GhostLogic provides immediate access to pre-encryption forensic evidence. Digital forensics experts can identify initial compromise vectors, lateral movement paths, and data exfiltration attempts—even after attackers encrypt or wipe primary systems. Immutable evidence storage ensures recovery services have complete visibility into the attack timeline.