Security Affairs

JULY 17, 2019

Threat actors used the Extembro DNS- changer Trojan in an adware campaign to prevent users from accessing security-related websites. Security experts at Malwarebytes observed an adware campaign that involved the Extembro DNS- changer Trojan to prevent users from accessing websites of security vendors.

Adware 92

Adware DNS Malware Advertising 92

Security Affairs

MARCH 26, 2020

Hackers compromiseD -Link and Linksys routers and change DNS settings to redirect users to bogus sites proposing a fake COVID-19 information app from the World Health Organization. In some cases, users were infected with the Oski information-stealing malware. . 234.35.230 and 94 [. 103.82.249. washington.edu imageshack.us

Malware 112

Malware DNS Advertising Cryptocurrency 112

Security Affairs

MARCH 5, 2020

Let’s consider mybrowser.microsoft.com, it might have resolved by the DNS to something like webserver9000.azurewebsites.net. But experts discovered that Microsoft did not take care of DNS entries for the sub-domains that for some reason it stops to update. ” states a report published by the security duo.

DNS 138

DNS Phishing Advertising Malware 138

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 133

Internet Internet DNS Advertising 133

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 94

DNS Advertising Engineering Internet 94

Security Affairs

JUNE 27, 2019

Other issues included information disclosure and a flaw that allowed attackers to steal backups of the VM and its data. In April, the researcher Nick Cano discovered that BlueStacks versions prior than v4.90.0.1046 are affected by a DNS rebinding vulnerability that allowed attackers to gain access to the emulator’s IPC functions.

DNS 110

DNS Backups Advertising Authentication 110

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 106

DNS Passwords Advertising Banking 106

Security Affairs

OCTOBER 25, 2019

We're investigating reports of intermittent DNS resolution errors with Route 53 & our external DNS providers. According to the company status page, hackers were targeting the AWS DNS servers flooding them with junk network traffic. “We are investigating reports of occasional DNS resolution errors.

DDOS 74

DDOS DNS Advertising Engineering 74

Security Affairs

FEBRUARY 18, 2020

To verify this I’ve sent a crafted payload which enable the remote server (incometaxindia.gov.in) to perform a DNS lookup on my burp collaborator. About the Author: Security Researcher Dhiraj Mishra ( @mishradhiraj ). Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Original post at: [link].

DNS 144

DNS Advertising Government Hacking 144

Security Affairs

SEPTEMBER 25, 2020

Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->. The post Cisco fixes 34 High-Severity flaws in IOS and IOS XE software appeared first on Security Affairs. Pierluigi Paganini. SecurityAffairs – hacking, DoS).

Software 111

Software DNS Wireless Advertising 111

Security Affairs

OCTOBER 15, 2019

. “the actor moved away from hosting the scripts on dedicated servers and instead started to use Domain Name System (DNS) text records. These records are accessed via normal DNS queries or DNS-over-HTTPs ( DoH ) if the DNS query fails. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->.

Cybercrime 94

Cybercrime DNS Malware Advertising 94

Security Affairs

OCTOBER 28, 2020

At the end of 2019, researchers spotted a new TrickBot backdoor framework dubbed Anchor that was using the DNS protocol for C2 communications. Stage 2 Security researcher Waylon Grange first spotted the new Linux variant of Anchor_DNS in July and called it “Anchor_Linux.” ” explained Grange. Pierluigi Paganini.

DNS 110

DNS Banking Advertising IoT 110

Security Affairs

DECEMBER 19, 2020

The Joker’s Stash carding platform has been active since October 7, 2014, it focuses on the sale of stolen payment card details. At the time of this writing the Joker’s Stash’s.bazar,lib,emc,coin domains, which are all those accessible via blockchain DNS, are simply showing a “Server Not Found” message. .

DNS 145

DNS Cybercrime Hacking Information Security 145

Security Affairs

SEPTEMBER 4, 2019

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. Pierluigi Paganini.

DNS 99

DNS Advertising Firewall Mobile 99

Security Affairs

AUGUST 1, 2019

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. Pierluigi Paganini.

DNS 97

DNS Advertising Firewall Mobile 97

Security Affairs

JUNE 18, 2020

They use DNS tunneling for stealthier C&C communications, and place execution guardrails on the malicious components to hide the malware from security researchers.” Experts also observed attackers using a DNS downloader that was designed for long-term, covert access to the target machine. Pierluigi Paganini.

DNS 124

DNS Advertising Spyware Software 124

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. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Pierluigi Paganini.

Hacking 104

Hacking DNS Cryptocurrency Accountability 104

Security Affairs

OCTOBER 5, 2020

Unlike other IoT DDoS botnets, Ttint implements 12 remote access functions such as Socket5 proxy for router devices, tampering with router firewall and DNS settings, executing remote custom system commands. ” ~ Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. ” concludes the report.

IoT 145

IoT Firmware Advertising DNS 145

Security Affairs

NOVEMBER 26, 2019

“ Fortinet products, including FortiGate and Forticlient regularly send information to Fortinet servers (DNS: guard.fortinet.com) on. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->. Pierluigi Paganini.

Encryption 142

Encryption Antivirus DNS Advertising 142

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. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->.

Healthcare 145

Healthcare Ransomware Cybercrime Advertising 145

Security Affairs

OCTOBER 16, 2020

.” reads the post published by Damian Menscher, a Security Reliability Engineer for Google Cloud. “The attacker used several networks to spoof 167 Mpps (millions of packets per second) to 180,000 exposed CLDAP, DNS, and SMTP servers, which would then send large responses to us.” Pierluigi Paganini.

DDOS 126

DDOS Advertising DNS Engineering 126

Security Affairs

JULY 1, 2019

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. Pierluigi Paganini.

DNS 101

DNS Advertising Firewall Mobile 101

Security Affairs

JUNE 4, 2020

.” According to the Japanese security expert Masafumi Negishi, threat actors modified the primary DNS entry for the coincheck.com domain. ???????????? Coincheck uses Amazon’s managed DNS service, the attackers first registered a fake domain to the AWS server and replaced the legitimate awsdns-61.org NS ????????????

Accountability 129

Accountability Phishing DNS Cryptocurrency 129

Security Affairs

FEBRUARY 16, 2019

The authorities want to ensure that the access to Russian Internet resources will be maintained also under attack, to do this, Russian experts are thinking a sort of DNS managed by Moscow. Currently, among the 12 organizations that oversee DNS base servers worldwide where isn’t an entity in Russia. and Yandex.ru

Internet 111

Internet Internet DNS Cyber Attacks 111

Security Affairs

AUGUST 6, 2021

If you are in doubt, check the subnets on [link] and look at known DNS entries to get an idea. For most organizations, the chance of false positives, when blocking these subnets, will be very low to non-existent. About the author Niels Groeneveld. ’ Follow me on Twitter: @securityaffairs and Facebook. Pierluigi Paganini.

Ransomware 116

Ransomware DNS Malware Hacking 116

Security Affairs

DECEMBER 12, 2019

The operators leverage on low cost and easy to replace infrastructure using dynamic-DNS domains and regularly reused hop points. “MSTIC analysis indicates the use of dynamic DNS providers as opposed to registered domains is in line with GALLIUM’s trend towards low cost and low effort operations.” Pierluigi Paganini.

Telecommunications 97

Telecommunications DNS Malware Advertising 97

Security Affairs

APRIL 27, 2023

Iran-linked Charming Kitten group, (aka APT35 , Phosphorus , Newscaster , and Ajax Security Team) made the headlines in 2014 when experts at iSight issued a report describing the most elaborate net-based spying campaign organized by Iranian hackers using social media. Europe, the Middle East and India.

Malware 98

Malware DNS Media Architecture 98

Security Affairs

JULY 16, 2022

affects nginx resolver and can allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact. The most severe flaw, tracked as CVE-2021-23017 (CVSS score 9.4) The vendor also addressed multiple known vulnerabilities in CentOS 6.8,

DNS 106

DNS Network Security Hacking Software 106

Security Affairs

JUNE 26, 2019

When a DNS (CNAME) of a domain/subdomain is pointing to Azure cloud platform but has not been configured or linked to an active Azure account, any other Azure user can hijack it. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->.

Accountability 107

Accountability Hacking DNS Advertising 107

Security Affairs

JANUARY 16, 2021

Joker’s Stash is one of the most longevous carding websites, it was launched in October 2014 and is very popular in the cybercrime underground due to the freshness of its cards and their validity. The sized sites were at jstash.bazar, jstash.lib, jstash.emc, and jstash.coin, which are all those accessible via blockchain DNS.

Cybercrime 116

Cybercrime DNS Hacking Marketing 116

Security Affairs

MARCH 22, 2020

. “On March 16th I have found an unprotected and thus publicly available Elasticsearch instance which appeared to be managed by a UK-based security company, according to the SSL certificate and reverse DNS records.” ” wrote Security Discovery’s researcher Bob Diachenko. Pierluigi Paganini.

Data breaches 111

Data breaches Advertising DNS Engineering 111

Security Affairs

MARCH 20, 2020

Trend Micro investigated waves of the APT28’s targeted credential phishing attacks and collected thousands of email samples sent out by the group since 2014. “Their attacks, which range from compromising DNS set tings and tabnabbing to creating watering holes and taking advantage of zero-days, have been nothing short of sophisticated.

Phishing 145

Phishing Accountability Advertising DNS 145

Security Affairs

MARCH 10, 2020

Others appear to be the infrastructure owned by the threat group, judging by multiple hostnames , DNS data, etc. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->. . Pierluigi Paganini. SecurityAffairs – hacking tools, RAT).

Hacking 145

Hacking Malware Advertising DNS 145

Security Affairs

APRIL 24, 2020

The botnet was initially designed to launch DDoS attacks using UDP, DNS and HEX floods. Now security researchers from Radware reported having discovered a new version of the Hoaxcalls botnet that is targeting an unpatched issue in the ZyXEL Cloud CNM SecuManager. . Both vulnerabilities have been rated as critical severity (i.e

DDOS 139

DDOS IoT Advertising DNS 139

Security Affairs

DECEMBER 18, 2019

” Momentum supports 36 different methods for DDoS attacks, including multiple reflection and amplifications attack methods that target MEMCACHE , LDAP , DNS and Valve Source Engine. “Smart and connected devices are prone compromise because of limited security settings and protection options. .” Pierluigi Paganini.

Malware 99

Malware DDOS Advertising DNS 99

Security Affairs

JUNE 16, 2020

The flaws can be exploited for remote code execution, denial-of-service (DoS) attacks, and for obtaining potentially sensitive information. A remote attacker could exploit the flaw by sending specially crafted IP packets or DNS requests to the vulnerable devices. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->.

Hacking 108

Hacking IoT Advertising DNS 108

Security Affairs

AUGUST 27, 2019

The malware uses DNS and HTTP-based communication mechanisms. “Password spraying, DNS tunneling, social engineering, and abuse of security testing frameworks are common tactics, particularly from threat groups operating in the Middle East.” Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->.

DNS 107

DNS Passwords Penetration Testing Social Engineering 107