Security Boulevard

MAY 10, 2023

It was the summer of 2019, and I spent an hour walking around downtown Los Altos in Silicon Valley with a serial entrepreneur and investor. HYAS has published multiple internal studies demonstrating how powerful this data actually is in various HYAS blogs , but of course the ultimate proof is third-party validation.

DNS 69

DNS CISO Architecture Data privacy 69

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

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. ” reads a blog post published by Avast. Most recently, Netflix became a popular domain for DNS hijackers.”

DNS 73

DNS Passwords Advertising Banking 73

Krebs on Security

NOVEMBER 21, 2020

2019 that wasn’t discovered until April 2020. “A domain hosting provider ‘GoDaddy’ that manages one of our core domain names incorrectly transferred control of the account and domain to a malicious actor,” Liquid CEO Kayamori said in a blog post. This latest campaign appears to have begun on or around Nov.

Cryptocurrency 363

Cryptocurrency VPN Scams Social Engineering 363

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.

Ransomware 139

Ransomware DNS Encryption Backups 139

Security Affairs

SEPTEMBER 8, 2019

Hi folk, let me inform you that I suspended the newsletter service, anyway I’ll continue to provide you a list of published posts every week through the blog. Cisco addresses CVE-2019-12643 critical flaw in virtual Service Container for IOS XE. Cyber Defense Magazine – September 2019 has arrived. Once again thank you!

IoT 74

IoT Data breaches DNS Advertising 74

Fox IT

JANUARY 12, 2021

NCC Group and Fox-IT observed this threat actor during various incident response engagements performed between October 2019 until April 2020. These credentials are used in a credential stuffing or password spraying attack against the victim’s remote services, such as webmail or other internet reachable mail services.

VPN 68

VPN Accountability Passwords DNS 68

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

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 85

DNS Wireless Malware Firewall 85

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.

DDOS 134

DDOS Cryptocurrency Marketing Internet 134

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

Security Affairs

FEBRUARY 19, 2019

In detail, the first wave observed was on February 12th, 2019. All the network traffic on the machine has now been monitored, but no connections to the Internet has been performed. The malware tries to resolve the DNS: sameerd.net. Beforehand, we simulate a fake Internet, and the malicious request was received.

Malware 77

Malware Phishing DNS Engineering 77

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. . It was originally published on August 8, 2019. ) . Less technically speaking, ACME: . Related posts.

Encryption 52

Encryption DNS Backups Internet 52

CyberSecurity Insiders

APRIL 30, 2021

million attacks reported in the first half of 2020 – an increase of more than 250% compared to the same period in 2019. In this week’s blog post, we’ll take a deeper look at the recent growth in DDoS attacks and the threat they could pose for your organization. DDoS attacks are on the rise, with over 4.83

DDOS 144

DDOS Cyber Attacks DNS Threat Detection 144

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).

Wireless 68

Wireless DNS Mobile Technology 68

SecureList

JUNE 15, 2022

Revenue: 8kk+$ (information is current as of 2019). 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. Blackmailer blog: active auction.

VPN 97

VPN Accountability Ransomware Encryption 97

Cisco Security

AUGUST 29, 2022

In part one of this issue of our Black Hat USA NOC (Network Operations Center) blog, you will find: Adapt and Overcome. Another challenge the morning of the Expo Hall opening was that five of the 57MRs inside were not yet connected to the Internet when it opened at 10am. Building the Hacker Summer Camp network, by Evan Basta.

Engineering 83

Engineering Wireless Malware DNS 83

SecureList

APRIL 27, 2021

One of the suspected FinFly Web servers was active for more than a year between October 2019 and December 2020. We investigated a long-running espionage campaign, dubbed A41APT, targeting multiple industries, including the Japanese manufacturing industry and its overseas bases, which has been active since March 2019.

Malware 142

Malware Spyware Government Social Engineering 142

SecureList

OCTOBER 26, 2021

In June, more than six months after DarkHalo had gone dark, we observed the DNS hijacking of multiple government zones of a CIS member state that allowed the attacker to redirect traffic from government mail servers to computers under their control – probably achieved by obtaining credentials to the control panel of the victims’ registrar.

Malware 143

Malware Government Surveillance Spyware 143

Security Affairs

MARCH 6, 2019

The new ransomware dubbed JCry (extension used to rename encrypted files.jcry ) is part of the OpIsrael 2019 — an annual coordinated cyber attack against the Israeli government and private websites created with the stated goal of “erasing Israel from the Internet” in protest against the Israeli government’s conduct in the Israel-Palestine conflict.

Ransomware 81

Ransomware Encryption Malware Cyber Attacks 81

Security Affairs

MARCH 6, 2019

The new ransomware dubbed JCry (extension used to rename encrypted files.jcry ) is part of the OpIsrael 2019 — an annual coordinated cyber attack against the Israeli government and private websites created with the stated goal of “erasing Israel from the Internet” in protest against the Israeli government’s conduct in the Israel-Palestine conflict.

Ransomware 40

Ransomware Encryption Malware Cyber Attacks 40