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T1205.002 Socket Filters — Detection Rules

Detection workspace for T1205.002 Socket Filters: 0 Sigma sources, 0 Atlas concepts and 0 anomaly models. No live detection validation.

Source-backed rule directory

No reviewed association in this snapshot.

Atlas deterministic concepts

No exact concept selected.

Anomaly models

No exact Atlas model in this snapshot.

ATT&CK analytic guidance

DET0162 Socket-filter trigger → on-host raw-socket activity → reverse connection (T1205.002)

AN0462 Analytic 0462

Adversary installs/uses packet-capture or raw-socket capability (WinPcap/Npcap, wpcap/packet DLLs or raw socket attach) and sets a filter. A crafted inbound packet is observed; within a short window the host process that loaded capture libraries initiates an outbound connection (e.g., reverse shell) to the packet origin.

AN0463 Analytic 0463

Process creates a raw/packet socket and attaches a (e)BPF filter (setsockopt SO_ATTACH_FILTER/ATTACH_BPF or bpf(BPF_PROG_LOAD)). Immediately after a matching inbound packet, the same process binds/connects outward to a remote host (reverse shell or beacon).

AN0464 Analytic 0464

Process opens /dev/bpf* (libpcap) or loads NetworkExtension filter, then after a crafted inbound packet the same process initiates an outbound connection to the trigger origin.

Connected ecosystem references

Linked tags

Simulation, tools and telemetry

T1205.002 simulation workspace

No reviewed association in this snapshot.

Existing anomaly research

Original publication snapshot · Anomaly Detection Atlas

Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.