Cisco Security

MARCH 11, 2021

After examining topics such as the MITRE ATT&CK framework , LOLBins , and others, this release will look at DNS traffic to malicious sites. We’ll also look at malicious DNS activity—the number of queries malicious sites receive. Organizations and malicious DNS activity. Overview of analysis. Cryptomining.

DNS 141

DNS Phishing Ransomware Internet 141

Malwarebytes

JULY 12, 2021

Firefox recently announced that it will be rolling out DNS-over-HTTPS (or DoH) soon to one percent of its Canadian users as part of its partnership with CIRA (the Canadian Internet Registration Authority), the Ontario-based organization responsible for managing the.ca The DNS resolver the request is sent to also sees the DNS request, too.

DNS 114

DNS Encryption Internet Internet 114

Security Affairs

MAY 1, 2021

The Internet Systems Consortium (ISC) released updates for the BIND DNS software to patch several denial-of-service (DoS) and potential RCE flaws. The most serious vulnerability, tracked as CVE-2021-25216 , is a buffer overflow issue that can lead to a server crash and under specific conditions to remote code execution. S1 -> 9.11.29-S1

DNS 131

DNS Software Internet Internet 131

Security Affairs

AUGUST 20, 2021

The Internet Systems Consortium (ISC) addressed a high-severity denial-of-service (DoS) flaw (CVE-2021-25218) affecting the BIND DNS software. Some operating systems allow packets received via other protocols to affect PMTUD values for DNS over UDP.” SecurityAffairs – hacking, BIND DNS ). Pierluigi Paganini.

DNS 104

DNS Internet Internet Software 104

The Hacker News

MAY 2, 2022

The issue, which was originally reported in September 2021, affects the Domain Name System (DNS) implementation of two popular C libraries called uClibc and uClibc-ng that are used for developing embedded Linux systems. uClibc is known to be used by major

DNS 101

DNS IoT Risk Cybersecurity 101

Security Affairs

FEBRUARY 19, 2021

An anonymous researcher initially reported that the Brave’s Tor mode was sending queries for.onion domains to public internet DNS resolvers, other experts confirmed his findings. Piping.onion requests through DNS where your ISP or DNS provider can see that you made a request for an.onion site defeats that purpose.”

DNS 122

DNS Internet Internet Hacking 122

Malwarebytes

AUGUST 18, 2022

According to Verizon , 82 percent of data breaches in 2021 involved the human element—with phishing attacks making up over 60 precent of these. With Malwarebytes DNS filtering , however, you can prevent a large swath of phishing attacks. How to block phishing domains with DNS filtering. Photo credits: Phishing.org.

DNS 64

DNS Phishing Small Business Spyware 64

Cisco Security

AUGUST 12, 2021

Cisco Secure returned as a supporting partner of the Black Hat USA 2021 Network Operations Center (NOC) for the 5 th year ; joining conference producer Informa Tech and its other security partners. Threat hunting is a core mission of the Cisco Secure team, while monitoring the DNS activity for potentially malicious activity.

DNS 139

DNS Firewall Phishing Mobile 139

Security Affairs

SEPTEMBER 22, 2021

CVE-2021-40847 flaw in Netgear SOHO routers could be exploited by a remote attacker to execute arbitrary code as root. The flaw, tracked as CVE-2021-40847, resides in the source of a third-party component included in the firmware of many Netgear devices. ” concludes the report. Follow me on Twitter: @securityaffairs and Facebook.

DNS 133

DNS Firmware VPN Risk 133

Cisco Security

MARCH 11, 2021

After examining topics such as the MITRE ATT&CK framework , LOLBins , and others, this release will look at DNS traffic to malicious sites. We’ll also look at malicious DNS activity—the number of queries malicious sites receive. Organizations and malicious DNS activity. Overview of analysis. Cryptomining.

DNS 62

DNS Phishing Ransomware Internet 62

SecureList

DECEMBER 13, 2021

CVE-2021-44228 summary. Last week information security media reported the discovery of the critical vulnerability CVE-2021-44228 in the Apache Log4j library (CVSS severity level 10 out of 10). Kaspersky is aware of PoCs in the public domain and of the possible exploitation of CVE-2021-44228 by cybercriminals. PDM:Exploit.Win32.Generic.

DNS 139

DNS Media Information Security Software 139

Security Affairs

JUNE 22, 2021

DirtyMoe is a Windows botnet that is rapidly growing, it passed from 10,000 infected systems in 2020 to more than 100,000 in the first half of 2021. Communication with C&C servers is based on DNS requests and it uses a special mechanism translating DNS results to a real IP address. ” concludes the analysis.”

DNS 141

DNS Cryptocurrency Internet Internet 141

Security Boulevard

JANUARY 25, 2022

The recent Log4Shell (CVE-2021-44228) vulnerability is the impetus to creating this blog and discussing how you can use LogRhythm AI Engine (AIE) “Trend rules” to effectively detect anomalous behavior. The post Threat Hunting Anomalous DNS and LDAP Activity with Trend Rules appeared first on LogRhythm.

DNS 52

DNS Engineering Technology 52

Security Affairs

DECEMBER 19, 2022

The Glupteba botnet is back, researchers reported a surge in infection worldwide after Google disrupted its operation in 2021. In December 2021, Google announced it has taken down the infrastructure operated by the Glupteba botnet, it also sued Russian nationals Dmitry Starovikov and Alexander Filippov for creating and operating the botnet.

DNS 105

DNS Antivirus Cryptocurrency Software 105

Security Affairs

FEBRUARY 9, 2021

Microsoft February 2021 Patch Tuesday addresses 56 vulnerabilities, including a flaw that is known to be actively exploited in the wild. The CVE-2021-1732 zero-day is an elevation of privilege issues that resides in the Windows Win32k component. “This is potentially wormable, although only between DNS servers.

DNS 99

DNS IoT Backups Mobile 99

McAfee

DECEMBER 10, 2021

Overview: On December 9th, a vulnerability (CVE-2021-44228) was released on Twitter along with a POC on Github for the Apache Log4J logging library. The most popular lookup currently being seen in both PoCs and active exploitation is utilizing LDAP; however, other lookups such as RMI and DNS are also viable attack vectors.

DNS 125

DNS Architecture Internet Internet 125

Heimadal Security

MARCH 24, 2021

Hackers exploit software vulnerabilities, the DNS, or even user accounts to get their way. The Minutiae of 2021’s Golden Standard for Cybersecurity appeared first on Heimdal Security Blog. Unfortunately, this is not a singular threat, but a layered issue. This is why your enterprise needs endpoint security.

Cybersecurity 98

Cybersecurity DNS Accountability Software 98

Security Affairs

SEPTEMBER 14, 2021

Microsoft Patch Tuesday security updates for September 2021 addressed a high severity zero-day flaw actively exploited in targeted attacks. Microsoft Patch Tuesday security updates for September 2021 addressed a high severity zero-day RCE actively exploited in targeted attacks aimed at Microsoft Office and Office 365 on Windows 10 computers.

DNS 106

DNS Internet Internet Hacking 106

Security Affairs

FEBRUARY 2, 2021

Cyber Defense Magazine February 2021 Edition has arrived. 9TH ANNUAL INFOSEC AWARDSNOW OPEN FOR NOMINATIONS WITH AN INCREDIBLE SOCIAL MEDIA LIVE BOOST AND VIRTUAL RED CARPET TO CELEBRATE OUR WINNERS, HELD DURING RSA CONFERENCE 2021 IN SAN FRANCISCO, CA, USA. The post Cyber Defense Magazine – February 2021 has arrived.

InfoSec 105

InfoSec DNS Media Marketing 105

Security Boulevard

FEBRUARY 1, 2021

Tripwire’s January 2021 Patch Priority Index (PPI) brings together important vulnerabilities from Microsoft, Dnsmasq and Oracle. Dnsmasq is an open-source DNS forwarding application, and systems using this software should patch as soon as possible. Up next […]… Read More.

DNS 49

DNS Software 49

Security Affairs

JULY 22, 2021

Multiple major websites, including Steam, AWS, Amazon, Google, and Salesforce, went offline due to Akamai DNS global outage. A software configuration update triggered a bug in the Akamai DNS which took offline major websites, including Steam, the PlayStation Network, AWS, Google, and Salesforce. SecurityAffairs – hacking, DNS).

Software 124

Software DNS DDOS Technology 124

Security Affairs

MARCH 3, 2021

Cyber Defense Magazine March 2021 Edition has arrived. 9TH ANNUAL INFOSEC AWARDSNOW OPEN FOR NOMINATIONS WITH AN INCREDIBLE SOCIAL MEDIA LIVE BOOST AND VIRTUAL RED CARPET TO CELEBRATE OUR WINNERS, HELD DURING RSA CONFERENCE 2021 IN SAN FRANCISCO, CA, USA. The post Cyber Defense Magazine – March 2021 has arrived.

InfoSec 65

InfoSec DNS Media Marketing 65

SecureList

NOVEMBER 26, 2021

IT threat evolution Q3 2021. IT threat evolution in Q3 2021. IT threat evolution in Q3 2021. While tracking this threat actor in spring 2021, we discovered a newer version. Targeted attacks exploiting CVE-2021-40444. PC statistics. Mobile statistics. Targeted attacks. WildPressure targets macOS.

Malware 98

Malware Banking Energy and Utilities Accountability 98

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. KB95091: McAfee Enterprise coverage for Apache Log4j CVE-2021-44228 Remote Code Execution. Attack Chain and Defensive Architecture.

Malware 98

Malware Risk Internet Internet 98

CSO Magazine

DECEMBER 21, 2021

Tick… On December 9, 2021, the world was alerted to the Log4j vulnerability [CVE-2021-44228 aka Log4Shell]. The JNDI injection can leverage different protocols such as Lightweight Directory Access Protocol (LDAP), Secure LDAP (LDAPS), Remote Method Invocation (RMI), or Domain Name Service (DNS) to request a malicious payload.

DNS 113

DNS 113

Security Boulevard

DECEMBER 24, 2021

As we close out 2021, we at Security Boulevard wanted to highlight the most popular articles of the year. Following is the next in our series of the Best of 2021. The post Best of 2021 – Take a Moment to Hug Your Friends & Family: RIP Dan Kaminsky appeared first on Security Boulevard.

DNS 72

DNS Cybersecurity 72

Security Affairs

OCTOBER 4, 2021

John Graham-Cumming , CTO at Cloudflare, reported that some minutes before Facebook’s DNS outage began they observed a large number of BGP changes for Facebook’s ASN a circumstance that suggests BGP routing problems. pic.twitter.com/dMTevg6hqj — John Graham-Cumming (@jgrahamc) October 4, 2021. Relax everyone.

DNS 119

DNS Internet Internet Security Awareness 119

Security Affairs

APRIL 13, 2021

Security experts disclosed nine flaws, collectively tracked as NAME:WRECK, affecting implementations of the DNS protocol in popular TCP/IP network communication stacks. “The widespread use of these stacks and often external exposure of vulnerable DNS clients lead to a dramatically increased attack surface.” ” ù. .

DNS 108

DNS Advertising Hacking Ransomware 108

CSO Magazine

NOVEMBER 1, 2022

in September 2021. Punycode is a system for representing Unicode characters as ASCII and is used for example to represent internationalized domain names in the DNS system. In OpenSSL the vulnerable code is used for processing email address name constraints in X.509 509 certificates, also commonly known as SSL/TLS certificates.

DNS 119

DNS 119

CSO Magazine

JUNE 9, 2022

Dubbed Symbiote because it injects itself into existing processes, the threat has been in development since at least November 2021 and seems to have been used against the financial sector in Latin America. Symbiote is a malware that is highly evasive," researchers from BlackBerry said in a new report.

DNS 104

DNS Malware 104

BH Consulting

JANUARY 12, 2021

Six Open Source tools for your security team MORE Finding SUNBURST victims using passive DNS. MORE Security strategy predictions for 2021, from SC Magazine. The post Security Roundup January 2021 appeared first on BH Consulting. Links we liked. MORE Remember Meltdown and Spectre? Here are 32 more vulnerabilities to watch for.

Data privacy 52

Data privacy InfoSec DNS CISO 52

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.

DNS 59

DNS Small Business Cyber Attacks Antivirus 59

Malwarebytes

JULY 14, 2021

The list of July 2021 Patch Tuesday updates looks endless. One of those CVE’s is a familiar one, 2021-34527 aka the anyone-can-run-code-as-domain-admin RCE known as PrintNightmare. CVE-2021-33771 Windows Kernel Elevation of Privilege Vulnerability for Windows Server 2012, Server 2016, Windows 8.1, and Windows 10.

DNS 103

DNS Media System Administration Engineering 103

Cisco Security

JULY 8, 2022

Secure MSP center was launched in the US market in November 2021 and MSPs across America have been rapidly transacting their business on MSP Center. Cisco Umbrella’s market-leading DNS security is currently available with more SaaS security products coming soon. Cisco Secure MSP was born. Straightforward market pricing.

DNS 114

DNS Marketing Engineering Accountability 114

Security Affairs

DECEMBER 29, 2021

China-linked cyberespionage group Aquatic Panda was spotted exploiting the Log4Shell vulnerability ( CVE 2021-44228 ) in an attack aimed at a large academic institution. The attackers were observed performing multiple connectivity checks via DNS lookups for a subdomain under dns[.]1433[.]eu[.]org

DNS 99

DNS Hacking Malware Information Security 99

Malwarebytes

JULY 14, 2022

Securing that many endpoints can get really complex, really fast, especially when you consider that the common wisdom that Macs don’t get malware simply isn’t true: in fact, the number of malware detections on Mac jumped 200% year-on-year in 2021. Use a DNS filter to stop web-based attacks. That’s where DNS filtering comes in.

DNS 106

DNS Adware Malware Antivirus 106

Malwarebytes

SEPTEMBER 15, 2021

The September 2021 Patch Tuesday could be remembered as the final patching attempt in the PrintNightmare… nightmare. This month, Microsoft patched the remaining Print Spooler vulnerabilities under CVE-2021-36958. It was listed as CVE-2021-40444 , a Remote Code Execution (RCE) vulnerability in Microsoft MSHTML.

DNS 117

DNS Risk Authentication Internet 117