Security Boulevard

MARCH 31, 2022

While there were plenty of interesting topics taught, one that caught my attention was Out-of-Band (OOB) Data Exfiltration using DNS. Back in 2018, NotSoSecure published an Out of Band Exploitation (OOB) CheatSheet. The post Out of Band (OOB) Data Exfiltration via DNS appeared first on The State of Security. One […]… Read More.

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DNS Hacking 52

Krebs on Security

SEPTEMBER 16, 2021

man charged in 2018 with operating two online services that allowed paying customers to launch powerful distributed denial-of-service (DDoS) attacks against Internet users and websites. In such assaults, the perpetrators leverage unmanaged Domain Name Servers (DNS) or other devices on the Web to create huge traffic floods.

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DDOS DNS Internet Internet 285

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.

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DNS Advertising Internet Internet 106

Dark Reading

JANUARY 7, 2019

2018 saw a reduced number of huge DNS-facilitated DDoS attacks. Vendors and service providers believe that malicious impact will drop with continued technology improvements.

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DNS DDOS Technology 78

Krebs on Security

JANUARY 22, 2019

In July 2018, email users around the world began complaining of receiving spam which began with a password the recipient used at some point in the past and threatened to release embarrassing videos of the recipient unless a bitcoin ransom was paid. 13, 2018 bomb threat hoax. ” SAY WHAT? domaincontrol.com, and ns18.domaincontrol.com.

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DNS Internet Internet Computers and Electronics 226

Security Affairs

SEPTEMBER 18, 2021

” Our research shows that this actor has been targeting the aviation industry since at least 2018, with files mentioning both “Trip Itinerary Details” and “Bombardier” at the time using the URL akconsult[.]linkpc[.]net.” ” Follow me on Twitter: @securityaffairs and Facebook. .”

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Malware Phishing DNS Cybercrime 90

Security Affairs

JULY 4, 2019

The peculiarity of this new piece of malware is the ability to communicate with C2 servers via DNS over HTTPS ( DoH ). The DoH protocol was a new standard proposed in October 2018 and it is currently supported by several publicly available DNS servers. com domain. ” states the analysis. ” states the analysis.

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DNS Malware Advertising DDOS 78

Krebs on Security

FEBRUARY 4, 2019

Spammy Bear targeted dormant but otherwise legitimate domains that had one thing in common: They all at one time used GoDaddy’s hosted Domain Name System (DNS) service. The domains documented by MyOnlineSecurity all had their DNS records altered between Jan. 31 and Feb. 22 report on the GoDaddy weakness. Image: Farsight Security.

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DNS Ransomware Accountability Internet 230

Krebs on Security

JUNE 14, 2022

.” In such assaults, the perpetrators leverage unmanaged Domain Name Servers (DNS) or other devices on the Web to create huge traffic floods. Ideally, DNS servers only provide services to machines within a trusted domain — such as translating an Internet address from a series of numbers into a domain name, like example.com.

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DDOS DNS Internet Internet 142

Dark Reading

MAY 16, 2018

The average cost of a DNS attack in the US has climbed 57% over the last year to $654,000 in 2018, a survey from EfficientIP shows.

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DNS 50

Malwarebytes

DECEMBER 1, 2023

The list includes Amazon (banned in 2018), Google (2018), Microsoft (2022), and Cloudflare (2015). For a “normal” connection to a website, a Domian Name System (DNS) finds the IP address for the requested domain name. They are also known as content distribution networks.

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DNS Internet Internet Encryption 90

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.

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Phishing DNS Social Engineering Accountability 279

Security Affairs

AUGUST 9, 2018

The Internet Systems Consortium (ISC) announced the presence of a serious flaw in the BIND DNS software that can be exploited by remote attackers to cause a denial-of-service (DoS) condition. The vulnerability tracked as CVE-2018-5740 was discovered by Tony Finch of the University of Cambridge. Pierluigi Paganini.

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DNS Software Advertising Internet 45

Threatpost

JUNE 12, 2018

One of the most serious issues is a critical remote code execution vulnerability in the Windows DNS, which could allow an attacker to take full control of the targeted machine.

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DNS 44

Troy Hunt

SEPTEMBER 26, 2018

link] — Troy Hunt (@troyhunt) September 5, 2018. I'm going to keep the intro bits as brief as possible but, in a nutshell, Pi-hole is a little DNS server you run on a Raspberry Pi in your local network then point your router at such that every device in your home resolves DNS through the service.

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DNS Risk 274

Troy Hunt

JULY 12, 2018

— Troy Hunt (@troyhunt) July 5, 2018. For example, check out how it's used when embedded in the TXT record of a DNS entry which is then loaded into a WHOIS service which doesn't properly output encode the results. This is from CVE-2018-12529 and the sample exploit was taken from the SecurityResearch101 blog. Is it needed?

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DNS Wireless Risk Banking 276

Krebs on Security

DECEMBER 20, 2018

In a complaint unsealed today, the Justice Department said that although FBI agents identified at least 60 different booter services operating between June and December 2018, they discovered not all were fully operational and capable of launching attacks. That way, when the DNS servers respond, they reply to the spoofed (target) address.

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DNS Computers and Electronics Government Internet 170

Security Affairs

JUNE 22, 2021

The Windows botnet has been active since late 2017, it was mainly used to mine cryptocurrency, but it was also involved in DDoS attacks in 2018. 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.”

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DNS Cryptocurrency Internet Internet 121

Cisco Security

AUGUST 12, 2021

For several years, Cisco Secure provided DNS visibility and architecture intelligence with Cisco Umbrella and Cisco Umbrella Investigate ; and automated malware analysis and threat intelligence with Cisco Secure Malware Analytics (Threat Grid) , backed by Cisco Talos Intelligence and Cisco SecureX. DNS traffic at Record Low.

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DNS Firewall Phishing Mobile 138

Krebs on Security

MARCH 2, 2020

In 2018, security intelligence firm HYAS discovered a malware network communicating with systems inside of a French national power company. When it didn’t hear from French authorities after almost a week, HYAS asked the dynamic DNS provider to “ sinkhole ” the malware network’s control servers.

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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. Ryuk first appeared in the threat landscape in August 2018 as a derivative of the Hermes 2.1

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Healthcare Ransomware Cybercrime DNS 141

eSecurity Planet

MAY 24, 2023

A successful DKIM check also verifies ownership of the email by matching the organization in the “from” fields of the email with the DNS associated with the organization. DKIM deploys as text files in an organization’s hosted Domain Name Service (DNS) record, but the standard can be complex to deploy correctly and maintain.

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Technology DNS Encryption Authentication 75

Security Affairs

NOVEMBER 26, 2019

The flaw discovered by SEC Consult Vulnerability Lab researchers has been tracked as CVE-2018-9195, the experts also published a proof-of-concept (PoC) code to trigger it. “ Fortinet products, including FortiGate and Forticlient regularly send information to Fortinet servers (DNS: guard.fortinet.com) on.

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Encryption Antivirus DNS Advertising 104

eSecurity Planet

JUNE 1, 2023

At a high level, implementation of the Domain-based Message Authentication, Reporting and Conformance (DMARC) standard can be done simply and easily for outgoing mail by adding a text file to an organization’s DNS record. A receiving server looks for this when scanning the DNS record for the domain that sent the message.

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DNS Authentication Marketing eCommerce 80

Security Affairs

APRIL 8, 2019

Roaming Mantis surfaced in March 2018 when hacked routers in Japan redirecting users to compromised websites. Attackers used a new method of phishing with malicious mobile configurations along with previously observed DNS manipulation technique. We have seen increased distribution of sagawa.apk Type A since late February 2019.

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DNS Mobile Phishing Malware 85

Krebs on Security

SEPTEMBER 1, 2023

As far back as 2018, Interisle found.US ” “We stand against DNS abuse in any form and maintain multiple systems and protocols to protect all the TLDs we operate,” the statement continued. . “These ccTLDs make a strong case for validating domain registrants in the interest of public safety.”

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Phishing Telecommunications Government DNS 217

Hacker Combat

JULY 5, 2021

Chashell is a counter shell DNS contributor, while Chisel is a port-forwarding channel. This criminal group has been in existence since 2018, which is popularly known for lancing malicious software drives and utilizing extensions. This malicious software also utilizes Golang to steal data.

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Ransomware DNS Software Encryption 132

Security Affairs

SEPTEMBER 14, 2018

“In August 2018, Unit 42 observed OilRig targeting a government organization using spear-phishing emails to deliver an updated version of a Trojan known as BONDUPDATER. As expected, OilRig is continuing their onslaught of attacks well into 2018 with continued targeting in the Middle East.

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DNS Phishing Government Malware 74

Security Affairs

MARCH 17, 2022

The attack chain against the routers starts with brute-force attacks or by exploiting the CVE-2018-14847 flaw that allows reading a file that contains passwords. Microsoft has analyzed how the malware compromised MikroTik routers and developed a tool to detect signs of compromise. Follow me on Twitter: @securityaffairs and Facebook.

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Malware DNS Passwords Ransomware 114

Security Affairs

OCTOBER 15, 2019

The cybercrime organization was first spotted in April 2018 by researchers at Cisco Talos, earlier 2019 researchers from Palo Alto Networks Unit42 found new malware samples used by the Rocke group for cryptojacking that uninstalls from Linux servers cloud security and monitoring products developed by Tencent Cloud and Alibaba Cloud. .

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Cybercrime DNS Malware Advertising 59

Security Affairs

MARCH 21, 2022

Then the backdoor contacts the command-and-control (C2) server to downloads and executes other malicious payloads, including the TunnelMole, malware that abuses the DNS protocol to establish a tunnel for malicious purposes, and RC2FM and RC2CL. The LoadEdge backdoor maintains persistence through the Windows registry.

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Spyware DNS Phishing Government 81

Krebs on Security

OCTOBER 31, 2023

As far back as 2018, Interisle found.US “We’re always looking at the end malware or phishing page, but what we’re finding here is that there’s this middle layer of DNS threat actors persisting for years without notice.” and illicit or harmful content. US phishing domains. .

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Phishing Telecommunications Malware Scams 252

Security Affairs

JUNE 27, 2021

Crackonosh has been active since at least June 2018, upon executing an illegal or cracked copy of legitimate software, the malicious code drops an installer and a script that modifies the Windows registry to allow the main malware executable to run in Safe mode. ” Avast published Indicators of Compromise (IoCs) for this threat.

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Antivirus Cryptocurrency Malware Software 101

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 130

Security Affairs

NOVEMBER 9, 2020

Experts attribute the attack to a known threat actor tracked as xHunt , aka Hive0081, which was first discovered in 2018. “The Snugy backdoor uses a DNS tunneling channel to run commands on the compromised server. ” reads the analysis published by the experts. <C2 domain>.

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DNS Accountability Government Cyber Attacks 104

Security Affairs

DECEMBER 11, 2018

The Novidade exploit kit leverages cross-site request forgery (CSRF) to change the Domain Name System (DNS) settings of SOHO routers and redirect traffic from the connected devices to the IP address under the control of the attackers. The exploit kit blindly attacks the detected IP address with all its exploits. .

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DNS Advertising Firmware Banking 88

Security Affairs

JUNE 18, 2020

The group was first spotted by ESET in 2018, when the experts detected a sophisticated piece of spyware, tracked as InvisiMole, used in targeted attacks in Russia and Ukraine in the previous five years. Experts also observed attackers using a DNS downloader that was designed for long-term, covert access to the target machine.

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DNS Advertising Spyware Software 74