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Godlua backdoor, the first malware that abuses the DNS over HTTPS (DoH)

Security Affairs

The peculiarity of this new piece of malware is the ability to communicate with C2 servers via DNS over HTTPS ( DoH ). The DoH protocol was a new standard proposed in October 2018 and it is currently supported by several publicly available DNS servers. com domain. ” states the analysis. ” states the analysis.

DNS 81
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Black Hat USA 2021 Network Operations Center

Cisco Security

For several years, Cisco Secure provided DNS visibility and architecture intelligence with Cisco Umbrella and Cisco Umbrella Investigate ; and automated malware analysis and threat intelligence with Cisco Secure Malware Analytics (Threat Grid) , backed by Cisco Talos Intelligence and Cisco SecureX. DNS traffic at Record Low.

DNS 144
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Pink Botnet infected over 1.6 Million Devices, it is one of the largest botnet ever seen

Security Affairs

The number of infected devices is impressive, on 2019-11-30 a trusted security partner in the US informed Qihoo 360’s Netlab Cybersecurity reported to have observed 1,962,308 unique daily active IPs from the Pink botnet targeting its systems. According to the experts, Pink is the largest botnet they have observed in the last six years.

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Reflections on third-party validation of HYAS capabilties

Security Boulevard

It was the summer of 2019, and I spent an hour walking around downtown Los Altos in Silicon Valley with a serial entrepreneur and investor. By utilizing unique and bespoke data, assembled and correlated in the right way, HYAS has actually created the most effective Protective DNS solution on the planet.

DNS 69
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New Mirai variant appears in the threat landscape

Security Affairs

The shell script downloads several Mirai binaries that were compiled for different architectures, then it executes these binaries one by one. “The attacks are still ongoing at the time of this writing. “The IoT realm remains an easily accessible target for attackers.

Wireless 125
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China-linked LightBasin group accessed calling records from telcos worldwide

Security Affairs

CrowdStrike researchers reported that at least 13 telecommunication companies were compromised by since 2019. The campaign was uncovered by CrowdStrike by investigating a series of security incidents in multiple countries, the security firm added that the threat actors show an in-depth knowledge of telecommunications network architectures.

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PurpleFox botnet variant uses WebSockets for more secure C2 communication

Security Affairs

The payload fetched by the PowerShell targets 64-bit architecture systems, it is a long script consisting of three components: Tater (Hot Potato – privilege escalation) PowerSploit Embedded exploit bundle binary (privilege escalation). Most of the servers are located in China and belong to the infrastructure of the PurpleFox botnet.