Adam Levin

MARCH 21, 2019

Department of Homeland Security issued an emergency directive in January 2019 giving government agencies ten days to verify that they weren’t compromised by DNS hijacking. Today, less than 20% of DNS traffic is secured by DNSSEC, and only three percent of Fortune 1,000 companies have implemented it.

DNS 141

DNS Government Internet Internet 141

Krebs on Security

JANUARY 22, 2019

Experts at Cisco Talos and other security firms quickly drew parallels between the two mass spam campaigns, pointing to a significant overlap in Russia-based Internet addresses used to send the junk emails. When it was initially set up, it took advantage of two managed DNS servers assigned to it by GoDaddy — ns17.domaincontrol.com,

DNS 268

DNS Internet Internet Computers and Electronics 268

Adam Levin

FEBRUARY 27, 2019

The infrastructure at the core of the internet is vulnerable to attack from state-sponsored hackers, its governing body warned. . DNS is the system through which online servers are routed to more user-friendly domain names. This practice is called “DNS hijacking.”. Each time someone enters in a domain name (e.g.

DNS 183

DNS Internet Internet Technology 183

Krebs on Security

MARCH 31, 2020

PT Monday evening, Escrow.com’s website looked radically different: Its homepage was replaced with a crude message in plain text: The profanity-laced message left behind by whoever briefly hijacked the DNS records for escrow.com. Running a reverse DNS lookup on this 111.90.149[.]49 Image: Escrow.com.

Phishing 325

Phishing DNS Social Engineering Accountability 325

Security Affairs

APRIL 6, 2019

Security experts at Bad Packets uncovered a DNS hijacking campaign that is targeting the users of popular online services, including Gmail, Netflix, and PayPal. Hackers compromised consumer routers and modified the DNS settings to redirect users to fake websites designed to trick victims into providing their login credentials.

DNS 112

DNS Advertising Internet Internet 112

The Last Watchdog

DECEMBER 6, 2019

In 2019, we’ve seen a surge in domain name service (DNS) hijacking attempts and have relayed warnings from the U.S. In the enterprise environment, domain names, DNS, and certificates are the lifeline to any internet-based application including websites, email, apps, virtual private networks (VPNs), voice over IP (VoIP) and more.

DNS 140

DNS Firewall Social Engineering Risk 140

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 response to the numerous DNS hijacking attacks the UK’s National Cyber Security Centre (NCSC) issued an alert to warn organizations of this type of attack.

DNS 108

DNS Social Engineering Accountability Advertising 108

Security Affairs

JANUARY 23, 2019

DHS has issued a notice of a CISA emergency directive urging federal agencies of improving the security of government-managed domains (i.e.gov) to prevent DNS hijacking attacks. The notice was issued by the DHS and links the emergency directive Emergency Directive 19-01 titled “Mitigate DNS Infrastructure Tampering.”.

DNS 111

DNS Government Advertising Telecommunications 111

Security Affairs

JANUARY 10, 2019

Security expert uncovered a DNS hijacking campaign targeting organizations in various industries worldwide and suspects Iranian APT groups. “ Experts monitored the activities of threat actors between January 2017 and January 2019. . “ Experts monitored the activities of threat actors between January 2017 and January 2019.

DNS 109

DNS Telecommunications Government Encryption 109

Security Affairs

SEPTEMBER 26, 2024

internet service providers (ISPs) as part of a cyber espionage campaign code-named Salt Typhoon. internet service providers in recent months as part of a cyber espionage campaign code-named Salt Typhoon. internet-service providers in recent months in pursuit of sensitive information, according to people familiar with the matter.”

Internet 128

Internet Internet DNS Telecommunications 128

Security Affairs

SEPTEMBER 4, 2019

Cyber Defense Magazine September 2019 Edition has arrived. In addition, we’re shooting for 7x24x365 uptime as we continue to scale with improved Web App Firewalls, Content Deliver Networks (CDNs) around the Globe, Faster and More Secure DNS and CyberDefenseMagazineBackup.com up and running as an array of live mirror sites.

DNS 97

DNS Advertising Firewall Mobile 97

Security Affairs

DECEMBER 24, 2019

Russia successfully disconnected from the internet. Russia’s government announced that it has successfully concluded a series of tests for its RuNet intranet aimed at country disconnection from the Internet. One of them is checking the integrity and security of the Internet as a result of external negative influences.”

Internet 98

Internet Internet DNS Surveillance 98

Security Affairs

AUGUST 4, 2024

A China-linked APT, tracked as StormBamboo, compromised an internet service provider (ISP) to poison software update mechanisms with malware. Upon investigating the incidents, the researchers determined that a DNS poisoning attack at the ISP level caused the infection. The company linked the attacks to StormBamboo APT group.

Malware 143

Malware DNS Firewall Software 143

Krebs on Security

APRIL 4, 2024

Other Privnote phishing domains that also phoned home to the same Internet address as pirwnote[.]com com is currently selling security cameras made by the Chinese manufacturer Hikvision , via an Internet address based in Hong Kong. Searching DomainTools for domains that include both of these terms reveals pirwnote[.]com.

Phishing 272

Phishing Cryptocurrency DDOS Internet 272

Krebs on Security

NOVEMBER 21, 2020

2019 that wasn’t discovered until April 2020. “This gave the actor the ability to change DNS records and in turn, take control of a number of internal email accounts. . “This gave the actor the ability to change DNS records and in turn, take control of a number of internal email accounts.

Cryptocurrency 363

Cryptocurrency VPN Scams Social Engineering 363

Krebs on Security

JULY 18, 2022

For the past seven years, an online service known as 911 has sold access to hundreds of thousands of Microsoft Windows computers daily, allowing customers to route their Internet traffic through PCs in virtually any country or city around the globe — but predominantly in the United States. THE INTERNET NEVER FORGETS.

VPN 350

VPN Computers and Electronics Antivirus Software 350

Krebs on Security

JULY 3, 2023

However, searching passive DNS records at DomainTools.com for thedomainsvault[.]com Searching on ubsagency@gmail.com in Constella Intelligence shows the address was used sometime before February 2019 to create an account under the name “ SammySam_Alon ” at the interior decorating site Houzz.com. Thedomainsvault[.]com

Scams 291

Scams Business Services Accountability Marketing 291

Security Affairs

MARCH 20, 2020

The nation-state hackers are scanning the entire internet, in search of vulnerable webmail and Microsoft Exchange Autodiscover servers that expose TCP ports 445 and 1433. In May 2019, the experts noticed that the group started using hacked email addresses of numerous high-profile targets to send credential spam messages.

Phishing 145

Phishing Accountability Advertising DNS 145

Security Affairs

JULY 13, 2019

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. In some cases the router is reconfigured to use rogue DNS servers, which redirect victims to phishing pages that closely look like real online banking sites.

DNS 105

DNS Passwords Advertising Banking 105

SecureList

DECEMBER 18, 2020

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 76

DNS Telecommunications Malware Encryption 76

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 145

DNS Firewall Malware Mobile 145

Security Affairs

JULY 30, 2019

Even a device that is reaching outbound to the internet could be attacked and taken over. “ According to Shodan , there are over 808K SonicWall firewalls connected to the Internet, representing a similar number of networks that these devices defend.” ” reads the report published by Armis Labs.

Risk 103

Risk IoT Firewall DNS 103

Krebs on Security

FEBRUARY 24, 2023

BitSight researchers found significant overlap in the Internet addresses used by those domains and a domain called BHproxies[.]com. The only experience listed for Khafagy prior to the TikTok job is labeled “Marketing” at “Confidential,” from February 2014 to October 2019. million from private investors.

Accountability 289

Accountability Advertising Marketing Malware 289

Security Affairs

OCTOBER 5, 2020

The experts are monitoring the Mirai-based botnet since November 2019 and observed it exploiting two Tenda router 0-day vulnerabilities to spread a Remote Access Trojan (RAT). ” When the botnet was first detected in 2019, experts noticed it was exploiting the Tenda zero-day flaw tracked as CVE-2020-10987.

IoT 145

IoT Firmware Advertising DNS 145

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 145

Healthcare Ransomware Cybercrime Advertising 145

Security Affairs

JULY 27, 2020

In December 2018, security experts from Trend Micro discovered that some machine-to-machine (M2M) protocols can be abused to attack IoT and industrial Internet of Things (IIoT) systems. According to our estimate, CoAP can reach up to 32 times (32x) amplification factor, which is roughly between the amplification power of DNS and SSDP.”.

DDOS 142

DDOS IoT Internet Internet 142

Security Affairs

NOVEMBER 29, 2019

Group-IB, has analyzed key recent changes to the global cyberthreat landscape in the “Hi-Tech Crime Trends 2019/2020” report. According to Group-IB’s experts, the most frustrating trend of 2019 was the use of cyberweapons in military operations. As for 2019, it has become the year of covert military operations in cyberspace.

Banking 123

Banking Telecommunications Marketing Internet 123

Cisco Security

MARCH 16, 2021

Hiding internet activity strengthens privacy—but also makes it easier for bad actors to infiltrate the network. In fact, 63% of threats detected by Cisco Stealthwatch in 2019 were in encrypted traffic. In this blog I’ll describe two recent privacy advances—DNS over HTTPS (DoH) and QUIC—and what we’re doing to maintain visibility.

Encryption 93

Encryption DNS Threat Detection Internet 93

Security Affairs

JANUARY 7, 2024

Between 2017 and 2019, the APT group mainly used DNS hijacking in its campaigns. Reduce the number of systems that can be reached over internet using SSH. The researchers believe that the Turkey-linked APT Sea Turtle has been active since at least 2017. Enable 2FA on all externally exposed accounts.

Media 139

Media Accountability Telecommunications Government 139

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 110

DNS Banking Advertising Malware 110

Security Affairs

JULY 15, 2020

on the CVSS scale and affects Windows Server versions 2003 to 2019. 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. Non-Microsoft DNS Servers are not affected.”

DNS 93

DNS Advertising Engineering Internet 93

Security Affairs

AUGUST 20, 2021

Mozi is an IoT botnet that borrows the code from Mirai variants and the Gafgyt malware , it appeared on the threat landscape in late 2019. According to the researchers, in the last months of 2019, the botnet was mainly involved in DDoS attacks. .”

IoT 107

IoT DNS Manufacturing Firmware 107

Security Affairs

NOVEMBER 1, 2021

The number of infected devices is impressive, on 2019-11-30 a trusted security partner in the US informed Qihoo 360’s Netlab Cybersecurity reported to have observed 1,962,308 unique daily active IPs from the Pink botnet targeting its systems. According to the experts, Pink is the largest botnet they have observed in the last six years.

Architecture 145

Architecture DDOS Advertising DNS 145

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. Figure 19-Generic ransomware detection.

Ransomware 145

Ransomware DNS Encryption Backups 145

Security Affairs

DECEMBER 12, 2019

. “To compromise targeted networks, GALLIUM target unpatched internet-facing services using publicly available exploits and have been known to target vulnerabilities in WildFly/JBoss.” ” The GALLIUM threat actor is active, but its activity was more intense between 2018 and mid-2019. ” continues the analysis.

Telecommunications 97

Telecommunications DNS Malware Advertising 97

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 110

DNS Antivirus Cryptocurrency Software 110

Security Affairs

SEPTEMBER 8, 2019

Cisco addresses CVE-2019-12643 critical flaw in virtual Service Container for IOS XE. Cyber Defense Magazine – September 2019 has arrived. Some Zyxel devices can be hacked via DNS requests. CVE-2019-15846 Exim mail server flaw allows Remote Code Execution. Once again thank you!

IoT 102

IoT Data breaches Advertising DNS 102