Ruchna Nigam, Author at Unit42

A conceptual image representing ransomware, including the emerging ransomware groups covered here: AvosLocker, Hive, HelloKitty and LockBit 2.0.

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Ransomware Groups to Watch: Emerging Threats

By Doel Santos and Ruchna Nigam
August 24, 2021 at 3:00 AM

11 min. read

A conceptual image representing the network-attached devices common in the small office and home office that are being targeted by the eCh0raix ransomware variant.

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New eCh0raix Ransomware Variant Targets QNAP and Synology Network-Attached Storage Devices

By Ruchna Nigam, Haozhe Zhang and Zhibin Zhang
August 10, 2021 at 3:00 AM

12 min. read

A conceptual image illustrating a Mirai variant, such as the one discussed in this blog.

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New Mirai Variant Targeting Network Security Devices

By Vaibhav Singhal, Ruchna Nigam, Zhibin Zhang and Asher Davila
March 15, 2021 at 5:30 PM

8 min. read

This image illustrates the concept of a vulnerability.

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Exploits in the Wild for vBulletin Pre-Auth RCE Vulnerability CVE-2020-17496

By Haozhe Zhang, Qi Deng, Zhibin Zhang and Ruchna Nigam
September 3, 2020 at 12:00 PM

9 min. read

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Mirai and Hoaxcalls Botnets Target Legacy Symantec Web Gateways

By Ruchna Nigam
May 14, 2020 at 10:00 AM

5 min. read

30,661

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Grandstream and DrayTek Devices Exploited to Power New Hoaxcalls DDoS Botnet

By Ken Hsu, Haozhe Zhang, Zhibin Zhang and Ruchna Nigam
April 3, 2020 at 1:07 PM

7 min. read

29,158

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New Mirai Variant Targets Zyxel Network-Attached Storage Devices

By Ken Hsu, Zhibin Zhang and Ruchna Nigam
March 19, 2020 at 12:15 PM

7 min. read

25,171

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Mirai Variant ECHOBOT Resurfaces with 13 Previously Unexploited Vulnerabilities

By Ruchna Nigam
December 13, 2019 at 1:56 PM

6 min. read

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Hide ‘N Seek Botnet Updates Arsenal with Exploits Against Nexus Repository Manager & ThinkPHP

By Ruchna Nigam
June 12, 2019 at 6:00 AM

3 min. read

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New Mirai Variant Adds 8 New Exploits, Targets Additional IoT Devices

By Ruchna Nigam
June 6, 2019 at 5:00 PM

9 min. read

Mirai Compiled for New Processors Surfaces in the Wild

By Ruchna Nigam
April 8, 2019 at 6:00 AM

4 min. read

New Mirai Variant Targets Enterprise Wireless Presentation & Display Systems

By Ruchna Nigam
March 18, 2019 at 6:00 AM

5 min. read

35,466

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Multi-exploit IoT/Linux Botnets Mirai and Gafgyt Target Apache Struts, SonicWall

By Ruchna Nigam
September 9, 2018 at 6:27 PM

5 min. read

97,224

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Unit 42 Finds New Mirai and Gafgyt IoT/Linux Botnet Campaigns

By Ruchna Nigam
July 20, 2018 at 5:00 AM

10 min. read

35,547

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Reaper Group’s Updated Mobile Arsenal

By Ruchna Nigam
April 5, 2018 at 1:00 PM

4 min. read

Posts created by: Ruchna Nigam

Ransomware Groups to Watch: Emerging Threats

New eCh0raix Ransomware Variant Targets QNAP and Synology Network-Attached Storage Devices

New Mirai Variant Targeting Network Security Devices

Exploits in the Wild for vBulletin Pre-Auth RCE Vulnerability CVE-2020-17496

Mirai and Hoaxcalls Botnets Target Legacy Symantec Web Gateways

Grandstream and DrayTek Devices Exploited to Power New Hoaxcalls DDoS Botnet

New Mirai Variant Targets Zyxel Network-Attached Storage Devices

Mirai Variant ECHOBOT Resurfaces with 13 Previously Unexploited Vulnerabilities

Hide ‘N Seek Botnet Updates Arsenal with Exploits Against Nexus Repository Manager & ThinkPHP

New Mirai Variant Adds 8 New Exploits, Targets Additional IoT Devices

Mirai Compiled for New Processors Surfaces in the Wild

New Mirai Variant Targets Enterprise Wireless Presentation & Display Systems

Multi-exploit IoT/Linux Botnets Mirai and Gafgyt Target Apache Struts, SonicWall

Unit 42 Finds New Mirai and Gafgyt IoT/Linux Botnet Campaigns

Reaper Group’s Updated Mobile Arsenal

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