ARCANE: Cross-Campaign Attacker Re-identification via Passive Beacon Telemetry -- A Bayesian Network Framework for Longitudinal Cyber Attribution

• URL: http://arxiv.org/abs/2604.24644v1
• Date: Mon, 27 Apr 2026 16:11:58 GMT
• Title: ARCANE: Cross-Campaign Attacker Re-identification via Passive Beacon Telemetry -- A Bayesian Network Framework for Longitudinal Cyber Attribution
• Abstract summary: ARCANE is a probabilistic framework that aggregates passive telemetry across campaigns and organizations to construct persistent adversary fingerprints.<n>Results indicate that cross-campaign aggregation alone does not resolve attribution ambiguity.<n> Attribution accuracy remains stable under increasing evasion, suggesting the main limitation is feature indistinguishability rather than adversarial adaptation.
• Score: 0.2538209532048867
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Current cyber attribution approaches typically operate on a per-incident basis, leaving open whether aggregating evidence across campaigns improves adversary identification. We investigate whether cross-campaign attribution reduces ambiguity or whether structural limits persist under longitudinal data. We model adversary fingerprints as multi-dimensional feature vectors encoding behavioral, infrastructural, and temporal characteristics derived from covert beacon interactions. We introduce ARCANE (Attacker Re-identification via Cross-campaign Attribution Network), a probabilistic framework that aggregates passive telemetry across campaigns and organizations to construct persistent adversary fingerprints. These fingerprints are updated using a Bayesian belief network that integrates new evidence over time. A time-decayed confidence metric captures accumulated similarity across campaigns. Evaluation on a synthetic dataset of multiple threat profiles shows that intra-actor similarity consistently exceeds inter-actor similarity. However, separation between distinct actors remains limited due to shared operational practices among sophisticated adversaries. Results indicate that cross-campaign aggregation alone does not resolve attribution ambiguity. Performance is constrained by a structural ceiling in feature space, where inter-actor similarity remains high even without evasion. Attribution accuracy remains stable under increasing evasion, suggesting the main limitation is feature indistinguishability rather than adversarial adaptation. These findings highlight the need for additional signal classes, such as targeting patterns, temporal coordination, and infrastructure relationships, to improve attribution reliability.

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