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DDoS attacks in Q3 2021

SecureList

Q3 2021 brought two new DDoS attack vectors, potentially posing a serious threat, including for major web resources. ris , a new botnet capable of carrying out powerful DDoS attacks. For instance, a DDoS attack on a Cloudflare customer (attributed to M?ris) We won't let our #DDoS stop us doing what we love!

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How to Prevent DNS Attacks: DNS Security Best Practices

eSecurity Planet

To protect the protocol, best practices will add additional protocols to the process that encrypt the DNS communication and authenticate the results. DNS Encryption DNS encryption can be achieved through the DNSCrypt protocol, DNS over TLS (DoT), or DNS over HTTPS (DoH). Firewalls should be hardened to close unneeded ports.

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AT&T Looks to Shut Down Botnet that Attacked 5,700 Network Appliances

eSecurity Planet

AT&T is working to stop a botnet that has infected at least 5,700 network edge servers inside its networks and appears designed to steal sensitive information and launch distributed denial-of-service (DDoS) attacks. Also read: DDoS Attacks Skyrocket, Kaspersky Researchers Say. The researchers initially detected the botnet on Oct.

DDOS 145
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New Charges, Sentencing in Satori IoT Botnet Conspiracy

Krebs on Security

Justice Department today criminally charged a Canadian and a Northern Ireland man for allegedly conspiring to build botnets that enslaved hundreds of thousands of routers and other Internet of Things (IoT) devices for use in large-scale distributed denial-of-service (DDoS) attacks. — pleaded guilty in Sept.

IoT 316
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New EwDoor Botnet is targeting AT&T customers

Security Affairs

The attackers are targeting Edgewater Networks’ devices by exploiting the CVE-2017-6079 vulnerability with a relatively unique mount file system command. The bot supports the following functions: Self updating Port scanning File management DDoS attack Reverse SHELL Execute arbitrary commands.

DDOS 128
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Mirai V3G4 botnet exploits 13 flaws to target IoT devices

Security Affairs

Unlike most Mirai variants, the V3G4 variant uses different XOR encryption keys for string encryption. Once the attacker gains control of a vulnerable device in this manner, they could take advantage by including the newly compromised devices in their botnet to conduct further attacks such as DDoS.”

IoT 94
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Why backups are not the panacea for recovery from a ransomware attack

SC Magazine

Backups can be damaged, untested, prohibitively difficult to deploy, encrypted by attackers, or restore to the same breached state they backed up. ” Restoring encrypted files might seem like the most important thing to do when faced with a ransomware attack. Indeed, recovering from ransomware can be tough.

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