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Circus Spider

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CIRCUS SPIDER is the criminal actor behind the development of Netwalker ransomware (a.k.a. KazKavKovKiz, Mailto, Mailto2, and KoKo), which they operate under a Ransomware-as-a-Service (RaaS) model. The first versions of Netwalker ransomware emerged in September 2019 when the file extension .mailto was appended to encrypted files during ransomware infections. Netwalker is a self-given name that was...

  • Circus Spider

  • Russian Federation, Eastern Europe, Europe

Community Identifiers

Mailto2, KoKo, Netwalker, and KoKo, KazKavKovKiz, Mailto

Objective

Financial Gain

Motivation

Criminal

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