2018 DNS Firewall 
Security Affairs
MAY 1, 2024
The China-linked threat actors Muddling Meerkat are manipulating DNS to probe networks globally since 2019. Infoblox researchers observed China-linked threat actors Muddling Meerkat using sophisticated DNS activities since 2019 to bypass traditional security measures and probe networks worldwide.
Cisco Security
OCTOBER 19, 2021
In any perimeter defense a key component is firewalls—the proverbial guard towers in your fortifications. In this Threat Trends release, we’ll be looking at Cisco Secure Firewall. The goal is to highlight the common threats that organizations encounter and block with Secure Firewall. Secure Firewall version 7.0
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Krebs on Security
MARCH 2, 2020
In 2018, security intelligence firm HYAS discovered a malware network communicating with systems inside of a French national power company. When it didn’t hear from French authorities after almost a week, HYAS asked the dynamic DNS provider to “ sinkhole ” the malware network’s control servers. .
Troy Hunt
JULY 19, 2018
pic.twitter.com/WPez1SXYmD — Troy Hunt (@troyhunt) June 27, 2018. This means they can do everything from cache responses to stop potentially malicious threats to apply firewall rules to block certain user agents or IP addresses. Onto the next piece and per the title, it's going to involve DNS rollover.
Cisco Security
AUGUST 12, 2021
This requires a robust connection to the Internet (Lumen and Gigamon), firewall protection (Palo Alto Networks), segmented wireless network (Commscope Ruckus) and network full packet capture & forensics and SIEM (RSA NetWitness); with Cisco providing cloud-based security and intelligence support. From Russia With Love. Recorded Future.
Security Affairs
MARCH 17, 2022
The attack chain against the routers starts with brute-force attacks or by exploiting the CVE-2018-14847 flaw that allows reading a file that contains passwords. Microsoft has analyzed how the malware compromised MikroTik routers and developed a tool to detect signs of compromise. Follow me on Twitter: @securityaffairs and Facebook.
Cisco Security
AUGUST 11, 2021
We looked at REvil, also known as Sodinokibi or Sodin, earlier in the year in a Threat Trends blog on DNS Security. In it we talked about how REvil/Sodinokibi compromised far more endpoints than Ryuk, but had far less DNS communication. Figure 1-DNS activity surrounding REvil/Sodinokibi. Changing firewall rules.
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