Security Affairs

SEPTEMBER 23, 2020

Qurium analyzes the blocking implemented by four different operators in Belarus Belarus operators use their own infrastructure to implement the blocking Block techniques include transparent web proxies, injection of HTTP responses, stateless and stateful SSL DPI and fake DNS responses. Qurium forensics report: Internet blocking in Belarus.

Internet 118

Internet Internet DNS Advertising 118

PerezBox Security

OCTOBER 7, 2019

DNS is the internets lookup table, it builds a bridge between the domain name (e.g., The post Leveraging DNS to Enhance Your Networks Security appeared first on PerezBox. perezbox.com) and the IP address (e.g., 184.24.56.17). The IP address being where you can find.

DNS 68

DNS Network Security Internet Internet 68

Security Affairs

JULY 14, 2019

The UK’s National Cyber Security Centre (NCSC) issued a security advisory to warn organizations of DNS hijacking attacks and provided recommendations this type of attack. “In January 2019 the NCSC published an alert to highlight a large-scale global campaign to hijack Domain Name Systems (DNS).”

DNS 79

DNS Social Engineering Accountability Advertising 79

Security Affairs

MAY 1, 2024

Researchers at Lumen’s Black Lotus Labs discovered a new malware family, named Cuttlefish, which targets enterprise-grade and small office/home office (SOHO) routers to harvest public cloud authentication data from internet traffic. The malicious code can also perform DNS and HTTP hijacking within private IP spaces.

Malware 101

Malware DNS Authentication Telecommunications 101

Security Affairs

FEBRUARY 12, 2024

If you’re unsure, avoid entering sensitive information or use a privacy screen to block prying eyes. DNS Spoofing DNS (Domain Name System) is like the internet’s phone book, translating domain names into IP addresses. Use a VPN to encrypt your internet traffic and avoid connecting to unfamiliar Wi-Fi networks.

DNS 123

DNS VPN Encryption Passwords 123

Security Affairs

FEBRUARY 16, 2019

Russia plans to disconnect the country from the internet as part of an experiment aimed at testing the response to cyber attacks that should isolate it. Russia plans to conduct the country from the Internet for a limited period of time to conduct a test aimed at assessing the security of its infrastructure.

Internet 88

Internet Internet DNS Cyber Attacks 88

Security Affairs

AUGUST 10, 2020

An attacker could use $300 worth of off-the-shelf equipment to eavesdrop and intercept signals from satellite internet communications. The academic researcher James Pavur, speaking at Black Hat 2020 hacking conference , explained that satellite internet communications are susceptible to eavesdropping and signal interception.

Internet 92

Internet Internet Advertising Encryption 92

Security Affairs

AUGUST 10, 2020

Our findings show that both Telenor and MPT block websites using DNS tampering. MPT is ignoring the DNS requests to the blocked domains, while Telenor is redirecting them to an IP address outside of the country. The mail account hostmaster@urlblocked.pw, published as contact details in DNS, bounces all incoming mails.

Internet 74

Internet Internet Telecommunications DNS 74

The Security Ledger

DECEMBER 29, 2021

Mark talks about how the Internet community can come together ahead of the next vulnerability to make sure the. Mark talks about how the Internet community can come together ahead of the next vulnerability to make sure the mistakes that are evident in the response to Log4j aren’t repeated. . Read the whole entry. »

DNS 98

DNS Internet Internet Cyber Attacks 98

Security Affairs

MAY 1, 2023

While analyzing billions of DNS records, Infoblox researchers discovered a sophisticated malware toolkit, dubbed Decoy Dog, that was employed in attacks aimed at enterprise networks. The researchers pointed out that while the malware is open source, deploying it as a DNS C2 requires a significant effort. ” concludes the report.

Malware 74

Malware DNS Education Media 74

Security Affairs

MARCH 28, 2024

CVE-2024-20307 – CVE-2024-20308 (CVSS score 8.6) – Multiple vulnerabilities in the Internet Key Exchange version 1 (IKEv1) fragmentation feature of Cisco IOS Software and Cisco IOS XE Software. An attacker could allow an unauthenticated, remote attacker to cause a heap overflow or corruption on an affected system.

Software 114

Software Wireless DNS Internet 114

Security Affairs

JANUARY 16, 2023

Milisic purchased the T95 Android TV box to run Pi-hole , which is a Linux network-level advertisement and Internet tracker blocking application. Milisic also devised a trick to block the malware using the Pi-hole to change the DNS of the command and control server, YCXRL.COM to 127.0.0.2. ” continues the expert.

Malware 96

Malware Firmware DNS Internet 96

Security Affairs

JUNE 22, 2021

The DirtyMoe rootkit was delivered via malspam campaigns or served by malicious sites hosting the PurpleFox exploit kit that triggers vulnerabilities in Internet Explorer, such as the CVE-2020-0674 scripting engine memory corruption vulnerability. ” continues the report. . ” concludes the analysis.”

DNS 127

DNS Cryptocurrency Internet Internet 127

Security Affairs

NOVEMBER 15, 2021

The attack was launched by a Mirai botnet variant composed of 15,000 bots, it combined DNS amplification attacks and UDP floods. The botnet included Internet of Things (IoT) devices and GitLab instances. “This was a multi-vector attack combining DNS amplification attacks and UDP floods.

DDOS 127

DDOS DNS IoT Internet 127

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 112

DNS Internet Internet Security Awareness 112

Security Affairs

JANUARY 7, 2024

Between 2017 and 2019, the APT group mainly used DNS hijacking in its campaigns. The group targets government entities, Kurdish (political) groups like PKK, telecommunication, ISPs, IT-service providers (including security companies), NGO, and Media & Entertainment sectors; Over the years, the group enhanced its evasion capabilities. .

Media 112

Media Accountability Telecommunications Government 112

Security Affairs

AUGUST 4, 2022

“The attack can be performed without user interaction if the management interface of the device has been configured to be internet facing. “By default, this attack is reachable on the LAN and may be reachable via the internet (WAN) as well if the user has enabled remote web management on their device.

Hacking 98

Hacking Internet Internet Passwords 98

Security Affairs

APRIL 21, 2022

Umbrella is Cisco’s cloud-based Secure Internet Gateway (SIG) platform that provides users with multiple levels of defense against internet-based threats. Umbrella integrates secure web gateway, firewall, DNS-layer security, and cloud access security broker (CASB) functionality to protect systems against threats.

DNS 112

DNS Firewall Internet Internet 112

Security Affairs

APRIL 24, 2021

Dan Kaminsky was very active in the cyber security community, he was a regular speaker at major cybersecurity and hacking conferences, including Black Hat and DEFCON. He is best known for his study on DNS cache poisoning and for his investigation into the Sony Rootkit attacks.

Cybersecurity 143

Cybersecurity InfoSec DNS Hacking 143

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. DNS traffic at Record Low.

DNS 144

DNS Firewall Phishing Mobile 144

Security Affairs

DECEMBER 19, 2022

The botnet was involved in stealing users’ credentials and data, mining cryptocurrencies abusing victims’ resources, and setting up proxies to funnel other people’s internet traffic through infected machines and routers. Botnet operators use to spread the malware via cracked or pirated software and pay-per-install (PPI) schemes.

DNS 98

DNS Antivirus Cryptocurrency Software 98

Security Affairs

MAY 11, 2023

. “Successful exploits could allow attackers to monitor users’ internet activity, highjack internet connections and redirect traffic to malicious websites or inject malware into network traffic.

Hacking 95

Hacking Firmware Authentication DNS 95

Security Affairs

SEPTEMBER 22, 2021

For the specific DNS-based MITM attack used above, the attacker must race DNS queries from the Circle update daemon. Other MitM attacks that do not rely on DNS manipulation will also allow an attacker to exploit this vulnerability.”

DNS 128

DNS Firmware VPN Risk 128

Security Affairs

JULY 13, 2019

This year, security experts at Avast have blocked more than 4.6 The campaign uncovered by Avast aimed at silently modifying the Brazilian users’ Domain Name System (DNS) settings to redirect victims to malicious websites mimicking legitimate ones. Most recently, Netflix became a popular domain for DNS hijackers.”

DNS 73

DNS Passwords Advertising Banking 73

Security Affairs

OCTOBER 28, 2020

Microsoft announced to have taken down 62 of the original 69 TrickBot C&C servers, seven servers that could not be brought down last week were Internet of Things (IoT) devices. At the end of 2019, researchers spotted a new TrickBot backdoor framework dubbed Anchor that was using the DNS protocol for C2 communications.

DNS 103

DNS Banking Advertising IoT 103

Security Affairs

JULY 15, 2020

Today we released an update for CVE-2020-1350 , a Critical Remote Code Execution (RCE) vulnerability in Windows DNS Server that is classified as a ‘wormable’ vulnerability and has a CVSS base score of 10.0. This issue results from a flaw in Microsoft’s DNS server role implementation and affects all Windows Server versions.

DNS 59

DNS Advertising Engineering Internet 59

Security Affairs

SEPTEMBER 25, 2022

Every week the best security articles from Security Affairs free for you in your email box. builder Over 39K unauthenticated Redis services on the internet targeted in cryptocurrency campaign Hackers stole $160 Million from Crypto market maker Wintermute U.S.

Cryptocurrency 84

Cryptocurrency Data breaches DNS DDOS 84

Security Affairs

MARCH 10, 2021

Microsoft’s March Patch Tuesday security updates address 89 vulnerabilities in its products, including Microsoft Windows components, Azure and Azure DevOps, Azure Sphere, Internet Explorer and Edge (EdgeHTML), Exchange Server, Office and Office Services and Web Apps, SharePoint Server, Visual Studio, and Windows Hyper-V.

Internet 77

Internet Internet DNS Hacking 77

Security Affairs

SEPTEMBER 21, 2019

In December 2017, the popular cryptocurrency exchange EtherDelta was hacked, attackers conducted a DNS attack that allowed to steal at least 308 ETH ($266,789 at the time of the hack) as well as a large number of tokens. Once gained the access the Cloudflare account they were able to lock out any other employee of the company.

Hacking 79

Hacking DNS Cryptocurrency Accountability 79

Security Affairs

SEPTEMBER 14, 2021

The flaw, tracked as CVE-2021-40444 , resides in the MSHTML, which is the main HTML component of the Windows Internet Explorer browser, it is also used in other applications. At the time, Microsoft did not share info about the attacks either the nature of the threat actors.

DNS 90

DNS Internet Internet Hacking 90

Security Affairs

NOVEMBER 9, 2020

“The Snugy backdoor uses a DNS tunneling channel to run commands on the compromised server. The attackers were sending suspicious commands to the Exchange server via the Internet Information Services (IIS) process w3wp.exe. ” reads the analysis published by the experts. <C2 domain>.

DNS 112

DNS Accountability Government Cyber Attacks 112

Security Affairs

OCTOBER 29, 2020

In early 2019, researchers spotted a new TrickBot backdoor framework dubbed Anchor that was using the anchor_dns tool for abusing the DNS protocol for C2 communications. TrickBot is a popular banking Trojan that has been around since October 2016, its authors have continuously upgraded it by implementing new features.

Healthcare 143

Healthcare Ransomware Cybercrime Advertising 143

Security Affairs

AUGUST 22, 2021

million customers Adobe addresses two critical vulnerabilities in Photoshop Hamburg’s data protection agency (DPA) states that using Zoom violates GDPR Kalay cloud platform flaw exposes millions of IoT devices to hack Fortinet FortiWeb OS Command Injection allows takeover servers remotely 1.9

Data breaches 100

Data breaches Mobile Ransomware DNS 100

Security Affairs

JANUARY 19, 2021

Supports UDP and TCP packets, but also application layer protocols such as HTTP, DNS, SSDP, and SNMP Protocol packing support created by the attacker. DDOS and Flooding – HTTP, DNS, SYN Self-implementation of Slowlaris. Once infected a device, it will be later used as an attacking platform. ” continues the analysis.

DDOS 138

DDOS DNS Malware Internet 138

Security Affairs

FEBRUARY 12, 2024

ExpressVPN addressed a bug in the split tunneling feature that exposed the domains visited by the users to configured DNS servers. The expert noticed that the DNS queries were sent to the DNS server configured on the computer. Anyway, disabling the split tunneling feature will prevent the leak of the DNS requests.

DNS 112

DNS VPN Encryption Internet 112

Security Affairs

AUGUST 20, 2021

.” state researchers at Microsoft Security Threat Intelligence Center and Section 52 at Azure Defender for IoT. “By infecting routers, they can perform man-in-the-middle (MITM) attacks—via HTTP hijacking and DNS spoofing—to compromise endpoints and deploy ransomware or cause safety incidents in OT facilities.

IoT 103

IoT DNS Manufacturing Firmware 103

Security Affairs

OCTOBER 22, 2021

The rootkit was used by threat actors to redirect internet traffic to a custom proxy server. “The main purpose of the rootkit is to redirect internet traffic and route it to a custom proxy server. Upon contacting the C2, the rootkit will select a random domain from the list, each such domain having several DNS A records.

Malware 109

Malware DNS Internet Internet 109