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Author Archives:Francis Turner

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Wondering About the Power of IP Reputation? Here’s a Prime Example.

ThreatSTOP recently had the ASN 64484 Jupiter 25 (also known as DMZHOST) brought to our attention as the source of some DDoS attacks. This AS is a fascinating one that has a single upstream (Quasi Networks – a hosting provider formerly and notoriously known as Ecatel) and announces just a single /24.

The single /24 is not, of itself, an indicator of badness. (ThreatSTOP’s AS also announces a single /24) However, it does suggest that the AS is not a major hosting provider since only about 250 separate unNATed hosts can be run on that network.

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