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 119

Internet Internet DNS Advertising 119

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 104

DNS Banking Advertising IoT 104

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 80

Malware DNS Advertising Cryptocurrency 80

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 137

DNS Cybercrime Hacking Information Security 137

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 99

Software DNS Wireless Advertising 99

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 85

DNS Backups Advertising Authentication 85

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 58

Adware DNS Malware Advertising 58

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 95

DNS Phishing Advertising Malware 95

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 139

IoT Firmware DNS Advertising 139

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 117

DNS Advertising Government Hacking 117

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 75

DNS Passwords Advertising Banking 75

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 52

DDOS DNS Advertising Engineering 52

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 60

DNS Advertising Engineering Internet 60

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 143

Healthcare Ransomware Cybercrime DNS 143

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 80

Hacking DNS Cryptocurrency Accountability 80

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 64

Cybercrime DNS Malware Advertising 64

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 116

Encryption Antivirus DNS Advertising 116

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 66

DNS Advertising Firewall Mobile 66

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 65

DNS Advertising Firewall Mobile 65

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 81

DNS Advertising Spyware Software 81

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 100

DDOS DNS Advertising Engineering 100

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 89

Internet Internet DNS Cyber Attacks 89

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 107

Ransomware DNS Malware Hacking 107

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 102

DNS Network Security Hacking Software 102

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 94

Accountability Phishing DNS Cryptocurrency 94

Security Affairs

JULY 15, 2023

Gamaredon has been active since 2014 and its activity focus on Ukraine, the group was observed using the multistage backdoor Pteranodon / Pterodo. The Gamaredon APT group continues to carry out attacks against entities in Ukraine, including security services, military, and government organizations.

Social Engineering 97

Social Engineering DNS Accountability Malware 97

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 137

Phishing Accountability Advertising DNS 137

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 67

DNS Advertising Firewall Mobile 67

Krebs on Security

JULY 18, 2023

KrebsOnSecurity has learned that the owner of Defiant Tech, a 32-year-old Ontario man named Jordan Evan Bloom , was hired in late 2014 as a developer for the marital infidelity site AshleyMadison.com. A review of passive DNS records from DomainTools indicates that in 2013 pictrace[.]com pleaded guilty to running LeakedSource[.]com

Hacking 187

Hacking Accountability Data breaches Marketing 187

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 99

Data breaches DNS Advertising Engineering 99

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 119

Hacking Malware Advertising DNS 119

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 68

Telecommunications DNS Malware Advertising 68

Security Affairs

JANUARY 28, 2021

The threat actor behind the botnet used the new tool to hide the malicious process from process information programs such as `ps` and `lsof`and evading the detection. The libprocesshider open-source tool is available on Github since 2014 and is able to “hide a process under Linux using the ld preloader.”

Cryptocurrency 122

Cryptocurrency Cybercrime DNS Malware 122

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 82

DNS Penetration Testing Passwords Social Engineering 82

Security Affairs

MAY 27, 2020

“Recently, our DNS data based threat monitoning system DNSmon flagged a suspicious domain pro.csocools.com. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->. ” concludes the report. Pierluigi Paganini.

Advertising 101

Advertising DNS Software Malware 101

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 77

Cybercrime DNS Hacking Marketing 77

Security Affairs

MAY 18, 2019

The vulnerable routers have remote access enabled by default, a gift for hackers that can perform a broad range of malicious activities, such as change DNS settings and deliver malware. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->.

Wireless 87

Wireless IoT DNS Advertising 87