Abuse RadarThreat Intelligence

Connecting

Address

121.131.220.171

Medium 10/15/30d lists

A monitored leak-trap address was contacted. This suggests the sender may be using exposed or scraped address data.

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Risk score

how this score is made up
Risk score39/100
Detection volume+4Sensor corroboration+5Signal class+18Recency+12
Enrichment

Address intelligence

cached
CountrySouth KoreaKR
City / regionSeongnam-si, Gyeonggi-do, South KoreaAsia/Seoul
NetworkKorea Telecomkt.com
ASNAS4766
Reverse DNS—
Detections1total observations
Reporting sensors1distinct collectors
First seen2026-10-04 16:25 GMT+85 days ago
Last seen2026-10-04 16:25 GMT+85 days ago
Blocklist window10/15/30d lists
Attribution

Reporting sensors

which collectors observed this address
  • Leak Trap Sensor 021 observation · last 2026-10-04 16:25 GMT+8Leak
Sensor names are anonymised. Collector hostnames and log contents are never published.
Signals

Observation history

1 signal record
  • Leak trap address contactedMediumLeak trap
    1 detection from 1 sensor · first seen 2026-10-04 16:25 GMT+8 · last seen 2026-10-04 16:25 GMT+8 (5 days ago) · active

    A monitored leak-trap address was contacted. This suggests the sender may be using exposed or scraped address data.

Correlation0 multi-signal, 7 single-signal

Addresses sharing an observed attribute with this one. Arrival proximity uses a ±30 minute window around first observation.

  • 201.86.71.182Single-signal

    AS18881 Observed in a single observation window.

    • First observed together30 minutes apart2026-10-04T08:25:30+00:00 / 2026-10-04T08:55:18+00:00Both addresses were first observed within 30 minutes of each other (window is +/-30 minutes).distinguishing
    Open address
  • 58.115.53.1Single-signal

    AS38851 Observed in a single observation window.

    • First observed together0 seconds apart2026-10-04T08:25:30+00:00 / 2026-10-04T08:25:30+00:00Both addresses were first observed within 0 minutes of each other (window is +/-30 minutes).distinguishing
    Open address
  • 116.97.185.7Single-signal

    AS38731 Observed in a single observation window.

    • First observed together4 seconds apart2026-10-04T08:25:30+00:00 / 2026-10-04T08:25:26+00:00Both addresses were first observed within 0 minutes of each other (window is +/-30 minutes).distinguishing
    Open address
  • 222.122.102.229Single-signal

    AS4766 Observed in a single observation window.

    • First observed together5 seconds apart2026-10-04T08:25:30+00:00 / 2026-10-04T08:25:25+00:00Both addresses were first observed within 0 minutes of each other (window is +/-30 minutes).distinguishing
    Open address
  • 115.22.247.178Single-signal

    AS4766 Observed in a single observation window.

    • First observed together10 seconds apart2026-10-04T08:25:30+00:00 / 2026-10-04T08:25:20+00:00Both addresses were first observed within 0 minutes of each other (window is +/-30 minutes).distinguishing
    Open address
  • 221.138.172.189Single-signal

    AS9318 Observed in a single observation window.

    • First observed together11 seconds apart2026-10-04T08:25:30+00:00 / 2026-10-04T08:25:19+00:00Both addresses were first observed within 0 minutes of each other (window is +/-30 minutes).distinguishing
    Open address
  • 20.210.128.125Single-signal

    AS8075 Observed across 1 minutes, 66 detections recorded.

    • First observed together21 minutes apart2026-10-04T08:25:30+00:00 / 2026-10-04T08:04:11+00:00Both addresses were first observed within 21 minutes of each other (window is +/-30 minutes).distinguishing
    Open address

These are shared observations, not attribution. Abuse Radar does not claim common ownership, operation, coordination or intent between these addresses.

Abuse Radar publishes sanitized indicators only. Severity is a triage hint computed from detection volume, sensor corroboration, signal class and recency — it is not an attribution claim. See methodology.