McAfee

DECEMBER 22, 2021

CVE-2021-44228 – Apache Releases Log4j Version 2.15.0 A full technical analysis can be found here: McAfee Advanced Threat Research: Log4Shell Vulnerability is the Coal in our Stocking for 2021. In this blog, we present an overview of how you can mitigate the risk of this vulnerability exploitation with McAfee Enterprise solutions.

Malware 98

Malware Risk Internet Internet 98

SecureList

OCTOBER 26, 2021

This is our latest installment, focusing on activities that we observed during Q3 2021. This activity seems to have continued and stretched into 2021, when we spotted a set of recent attacks using the same techniques and malware to gain a foothold in diplomatic organizations based in Central Asia. The most remarkable findings.

Malware 143

Malware Government Surveillance Spyware 143

Malwarebytes

OCTOBER 5, 2021

The Internet is a patchwork of hundreds of thousands of separate networks, called Autonomous Systems, that are stitched together with BGP. To route data across the Internet, Autonomous Systems need to know which IP addresses other Autonomous Systems either control or can route traffic to. Thankfully, it withstood the onslaught.

DNS 143

DNS Internet Internet Mobile 143

McAfee

DECEMBER 1, 2021

CVE-2021-20322: Of all the words of mice and men, the saddest are, “it was DNS again.” PAN GlobalProtect VPN: CVE-2021-3064 . Absence of “in-the-wild” exploitation aside, we should also be grateful that the number of people who should care is rapidly dwindling (an ever-present theme of 2021). What is it? .

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DNS Firewall VPN Internet 90

SecureList

APRIL 27, 2021

This is our latest installment, focusing on activities that we observed during Q1 2021. In parallel, Volexity also reported the same Exchange zero-days being in use in early 2021. In November and December 2020, two public blog posts were published about this campaign. The most remarkable findings.

Malware 142

Malware Spyware Government Social Engineering 142

Security Boulevard

JUNE 22, 2023

Securing SMB Success: The Indispensable Role of Protective DNS Cyber attacks pose as much risk to small and medium-sized businesses (SMBs) as they do to large organizations — if not more. Implementing a Domain Name Service (DNS) security solution is the most efficient way to protect your business against a wide variety of attacks.

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DNS Small Business Cyber Attacks Antivirus 59

Cisco Security

MARCH 16, 2021

Hiding internet activity strengthens privacy—but also makes it easier for bad actors to infiltrate the network. In this blog I’ll describe two recent privacy advances—DNS over HTTPS (DoH) and QUIC—and what we’re doing to maintain visibility. Keeping your destination private: DNS over HTTPS.

Encryption 85

Encryption DNS Threat Detection Internet 85

Fox IT

DECEMBER 12, 2021

In the wake of the CVE-2021-44228 (a.k.a. This blog post is focused on detection and threat hunting, although attack surface scanning and identification are also quintessential parts of a holistic response. This multidisciplinary team converts our leading cyber threat intelligence into powerful detection strategies.

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DNS Cyber threats Internet Internet 75

CyberSecurity Insiders

DECEMBER 16, 2021

Log4Shell is a high severity vulnerability (CVE-2021-44228) impacting Apache Log4j versions 2.0 It was discovered by Chen Zhaojun of Alibaba Cloud Security Team and disclosed via the project´s GitHub repository on December 9, 2021. in early December 2021. rmi|dns):/[^n]+' /var/log. Executive summary. Conclusion.

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DDOS DNS Internet Internet 104

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.

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Ransomware DNS Encryption Backups 129

eSecurity Planet

DECEMBER 15, 2021

In addition, Hafnium “has been observed utilizing the vulnerability to attack virtualization infrastructure to extend their typical targeting,” the researchers wrote in the blog post. “In In these attacks, HAFNIUM-associated systems were observed using a DNS service typically associated with testing activity to fingerprint systems.”.

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Ransomware Software DNS Internet 126

eSecurity Planet

JANUARY 28, 2022

Microsoft in November fended off a massive distributed denial-of-service (DDoS) attack in its Azure cloud that officials said was the largest ever recorded, the latest in a wave of record attacks that washed over the IT industry in the second half of 2021. There was one peak in the attack, which lasted about 15 minutes.

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DDOS IoT Engineering DNS 135

Security Boulevard

DECEMBER 11, 2021

On November 30, 2021 , the Apache log4j2 team became aware of a bug that would allow injection of malicious input that could allow for remote code execution. It was only on December 9, 2021 that the security community largely became aware of this finding and the far reaching impacts of it. Identifying if your server is attackable?

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DNS Internet Internet Accountability 134

eSecurity Planet

FEBRUARY 8, 2021

. “Based on the analysis of the available data, the entire network of Lord & Taylor and 83 Saks Fifth Avenue locations have been compromised,” the firm wrote in a blog post examining the breach. The post Point-of-Sale (POS) Security Measures for 2021 appeared first on eSecurityPlanet. Evolving threats. Errors to avoid.

Retail 52

Retail Encryption Malware Artificial Intelligence 52

SecureList

FEBRUARY 7, 2022

We have been tracking Roaming Mantis since 2018, and published five blog posts about this campaign: Roaming Mantis uses DNS hijacking to infect Android smartphones. It’s been a while since the last blog post, but we’ve observed some new activities by Roaming Mantis in 2021, and some changes in the Android Trojan Wroba.g (or

Phishing 86

Phishing DNS Mobile Malware 86

Krebs on Security

APRIL 11, 2022

But a look at the Internet address historically tied to this domain (186.2.171.79) shows the same address is used to host or park hundreds of other newly-minted crypto scam domains , including coinbase-x2[.]net A dig into the Domain Name Server (DNS) records for Coinbase-x2[.]net ” Ark-x2[.]org org is no longer online.

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Scams Cryptocurrency Media Hacking 201

Cisco Security

AUGUST 29, 2022

In part one of our Black Hat USA 2022 NOC blog, we discussed building the network with Meraki: Adapt and Overcome. 25+ Years of Black Hat (and some DNS stats), by Alejo Calaoagan. If there is a specific DNS attack that threatened the conference, we supported Black Hat in blocking it to protect the network.

DNS 75

DNS Wireless Malware Firewall 75

Security Boulevard

APRIL 26, 2022

In 2021, the main attack vector used by this threat actor was credential phishing attacks through emails, posing as Naver, the popular South Korean search engine and web portal. Some details about this campaign were published in this Korean blog, however they did not perform the threat attribution. Passive DNS data.

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Phishing DNS Cryptocurrency Accountability 52

Security Boulevard

NOVEMBER 15, 2022

Internet-based discovery is a powerful capability unique to TLS Protect Cloud that starts building an inventory as soon as you sign up. Validation status to determine if there are any configuration errors such as incomplete chains or certificates that fail to align with DNS information which may cause disruptions to service.

Internet 52

Internet Internet DNS Risk 52

Duo's Security Blog

JANUARY 28, 2022

The requirements suggest taking an iterative approach: “Agencies must identify at least one internal-facing FISMA Moderate application and make it fully operational and accessible over the public internet” and “without relying on a virtual private network (VPN) or other network tunnel.”

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Authentication Government DNS Encryption 52

McAfee

SEPTEMBER 14, 2021

McAfee customers are protected from the malware/tools described in this blog. A more detailed blog with specific recommendations on using the McAfee portfolio and integrated partner solutions to defend against this attack can be found here. The hardcoded 208.67.222.222 resolves to a legitimate OpenDNS DNS server.

Malware 144

Malware DNS Accountability Manufacturing 144

Security Boulevard

APRIL 4, 2022

The Internet Security Research Group (ISRG) originally designed the ACME protocol for its own Let’s Encrypt certificate service. The previous version, ACME v1, was deprecated on June 1st, 2021. On September 15, 2021, the DNS records for acme-v01.api.letsencrypt.org On September 15, 2021, the DNS records for acme-v01.api.letsencrypt.org

Encryption 52

Encryption Authentication DNS Risk 52

The Last Watchdog

OCTOBER 19, 2021

The Internet as we know it operates within the service-oriented paradigm, which heavily favors providers over users. This makes Wildland something akin to a file-based Internet that you can browse and manage using Finder, Thunar, Konqueror or any other file browser of your choice. in June 2021.

Internet 223

Internet Internet Cryptocurrency Software 223

Security Boulevard

AUGUST 12, 2022

The CA will issue challenges (DNS or HTTPS) requiring the agent to take an action that demonstrates control over said domain(s). For that reason, having a backup CA is always a good idea,” he explains in a blog of his. . Why You Need Automated Security for the Internet of Things (IoT). Less technically speaking, ACME: .

Encryption 52

Encryption DNS Backups Internet 52

SecureList

FEBRUARY 16, 2021

The DTLS (Datagram Transport Layer Security) protocol is used to establish secure connections over UDP, through which most DNS queries, as well as audio and video traffic, are sent. In 2020, when much of life shifted online, internet resources repeatedly suffered from surges in totally legitimate activity.

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DDOS Cryptocurrency Marketing Internet 134

SecureList

JUNE 15, 2022

2TB of 2020-2021 data: credentials related to banking accounts and the most popular services. For instance, network access data for a company specializing in POS terminals and providing internet acquiring services is valued much higher ($20,000) than other similar offers. Blackmailer blog: auction price of stolen data.

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VPN Accountability Ransomware Encryption 97

Cisco Security

AUGUST 28, 2023

XDR (eXtended Detection and Response) Integrations At Black Hat USA 2023, Cisco Secure was the official Mobile Device Management, DNS (Domain Name Service) and Malware Analysis Provider. SCA detected 289 alerts including Suspected Port Abuse, Internal Port Scanner, New Unusual DNS Resolver,and Protocol Violation (Geographic).

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Wireless DNS Mobile Technology 61

Malwarebytes

MAY 9, 2023

Timeline Our investigation started in September 2022, when one of our former coworkers Hossein Jazi discovered an interesting lure , that seemed to target some entities over the war context: Tweet published by @hjazi in September 2022 In fact, this is the attack that Kaspersky analyzed in its blog.

Surveillance 75

Surveillance Accountability DNS Encryption 75

Kali Linux

NOVEMBER 27, 2022

In Secure Kali Pi (2022) , the first blog post in the Raspberry Pi series, we set up a Raspberry Pi 4 with full disk encryption. If you are only interested in using the Raspberry Pi as a Wi-Fi client, you can stop here, and unmount everything like we did in our secure Kali Pi blog post. hcd usr/lib/firmware/brcm/BCM-0bb4-0306.hcd

Firmware 52

Firmware Wireless Passwords VPN 52