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Sunburst: connecting the dots in the DNS requests

SecureList

For instance, before making the first internet connection to its C2s, the Sunburst malware lies dormant for a long period, of up to two weeks, which prevents an easy detection of this behavior in sandboxes. In the initial phases, the Sunburst malware talks to the C&C server by sending encoded DNS requests. avsvmcloud[.]com”

DNS 74
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CVE-2021-40847 flaw in Netgear SOHO routers could allow remote code execution

Security Affairs

The flaw, tracked as CVE-2021-40847, resides in the source of a third-party component included in the firmware of many Netgear devices. For the specific DNS-based MITM attack used above, the attacker must race DNS queries from the Circle update daemon. R6700v3 – 1.0.4.106 R6900 – 1.0.2.16 R7900 – 1.0.4.38

DNS 129
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New Ttint IoT botnet exploits two zero-days in Tenda routers

Security Affairs

Unlike other IoT DDoS botnets, Ttint implements 12 remote access functions such as Socket5 proxy for router devices, tampering with router firewall and DNS settings, executing remote custom system commands. According to the experts, Tenda routers running a firmware version between AC9 to AC18 are vulnerable to the attack.

IoT 138
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IoT Unravelled Part 3: Security

Troy Hunt

I also looked at custom firmware and soldering and why, to my mind, that was a path I didn't need to go down at this time. Back to the bit about risks impacting data collected by IoT devices and back again to CloudPets, Context Security's piece aligned with my own story about kids' CloudPets messages being left exposed to the internet.

IoT 358
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How to Secure DNS

eSecurity Planet

The domain name system (DNS) is basically a directory of addresses for the internet. Your browser uses DNS to find the IP for a specific service. For example, when you enter esecurityplanet.com, the browser queries a DNS service to reach the matching servers, but it’s also used when you send an email.

DNS 130
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StripedFly: Perennially flying under the radar

SecureList

It comes equipped with a built-in TOR network tunnel for communication with command servers, along with update and delivery functionality through trusted services such as GitLab, GitHub, and Bitbucket, all using custom encrypted archives. In the Linux version, it also gathers OpenSSH keys stored in $HOME/.ssh 8, 10.0.0.0/8, 8, 100.64.0.0/10,

Malware 107
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Hacking the Twinkly IoT Christmas lights

Security Affairs

The communications are not encrypted, however the WiFi password is sent encrypted during set up (albeit trivial to decrypt).” “As the communications are not encrypted, it is simple to Man-in-the-Middle the traffic and analyse the API.” ” reads the analysis published by MWR InfoSecurity.

IoT 79