Zhanhao Chen, Author at Unit42

A conceptual image representing malicious domains, such as those that can be identified by the proactive detector discussed in this piece.

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Detecting and Preventing Malicious Domains Proactively with DNS Security

By Zhanhao Chen and Daiping Liu
May 4, 2021 at 6:00 AM

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11 min. read

A conceptual image that illustrates the concepts of cybersquatting and domain parking, both of which can be abused by malicious actors to distribute malware, etc.

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Domain Parking: A Gateway to Attackers Spreading Emotet and Impersonating McAfee

By Ruian Duan, Zhanhao Chen, Seokkyung Chung, Janos Szurdi and Jingwei Fan
October 29, 2020 at 3:00 AM

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11 min. read

This image illustrates the concept of cybersquatting, a practice used by cybercriminals to take advantage of well-known domain names and brands.

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Cybersquatting: Attackers Mimicking Domains of Major Brands Including Facebook, Apple, Amazon and Netflix to Scam Consumers

By Zhanhao Chen and Janos Szurdi
September 1, 2020 at 3:00 AM

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17 min. read

36,958

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Studying How Cybercriminals Prey on the COVID-19 Pandemic

By Janos Szurdi, Zhanhao Chen, Oleksii Starov, Adrian McCabe and Ruian Duan
April 22, 2020 at 6:00 AM

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19 min. read

29,129

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Exploits in the Wild for Citrix ADC and Citrix Gateway Directory Traversal Vulnerability CVE-2019-19781

By Yue Guan, Qi Deng, Zhibin Zhang, Siddhart Shibiraj, Zhanhao Chen, Cecilia Hu and John Harrison
January 16, 2020 at 6:00 AM

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4 min. read

80,101

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Newly Registered Domains: Malicious Abuse by Bad Actors

By Zhanhao Chen, Jun Javier Wang and Kelvin Kwan
August 20, 2019 at 6:00 AM

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12 min. read