SecureList

MARCH 10, 2021

After the user starts the program, it changes the DNS settings on the device so that all domains are resolved through the attackers’ servers, which, in turn, prevent users from accessing certain antivirus sites, such as Malwarebytes.com. Updater.exe code snippet containing the encrypted address. C:ProgramDataFlock.

DNS 145

DNS Antivirus Malware Encryption 145

eSecurity Planet

MARCH 12, 2025

While it doesnt have quite as many extras as NordVPN, some highlights include its reasonable pricing and features like DNS leak protection and ad blocking. While it doesnt offer as many advanced features as NordVPN, IPVanish has plenty to recommend, including ad blocking and DNS leak protection. month Advanced: $4.49/month

VPN 57

VPN Mobile DNS Password Management 57

Google Security

MARCH 28, 2024

Tianhao Chi and Puneet Sood, Google Public DNS The Domain Name System (DNS) is a fundamental protocol used on the Internet to translate human-readable domain names (e.g., When a user enters a domain name in their browser, the DNS resolver (e.g. Google Public DNS). www.example.com) into numeric IP addresses (e.g.,

DNS 85

DNS Internet Internet Encryption 85

Krebs on Security

FEBRUARY 24, 2023

The Mylobot malware includes more than 1,000 hard-coded and encrypted domain names, any one of which can be registered and used as control networks for the infected hosts. 5, 2014 , but historic DNS records show BHproxies[.]com “This number is probably higher, but we don’t have a full visibility of the botnet. com on Mar.

Accountability 303

Accountability Advertising Marketing Malware 303

Troy Hunt

NOVEMBER 25, 2020

— Troy Hunt (@troyhunt) November 23, 2020 Clearly it was never TP-Link's intention for people to use their plugs in the fashion HA presently is and I'll talk more about why HA does this in the next section of this post. For some reason, the Shelly on my garage door is making a DNS request for api.shelly.cloud once every second!

IoT 363

IoT Firmware Risk Encryption 363

Security Affairs

DECEMBER 24, 2018

The communications are not encrypted, however the WiFi password is sent encrypted during set up (albeit trivial to decrypt).” “As the communications are not encrypted, it is simple to Man-in-the-Middle the traffic and analyse the API.” ” reads the analysis published by MWR InfoSecurity.

IoT 107

IoT Hacking DNS Authentication 107

Security Affairs

AUGUST 10, 2020

Pavel explained that attackers could also collect information even when the traffic is encrypted. The analysis of DNS could reveal the user’s Internet browsing history while the analysis of TLS certificates could allow fingerprinting the servers the user connected. ” reads the notification published by the FBI. “The

Internet 136

Internet Internet Advertising Encryption 136

Security Affairs

JULY 14, 2021

We have observed malicious binaries use openssl with base64, Advanced Encryption Standard (AES), CBC (Cipher Block Chaining) to thwart security scanners in the format as shown below: openssl enc -aes-256-cbc -d -A -base64 -pass pass:<> Curl. Bash scripts invoking encrypted Zip file. Bash scripts decoding an encrypted blob.

Adware 135

Adware Encryption Malware Passwords 135

Troy Hunt

JANUARY 10, 2018

To be crystal clear, none of this is "hacking", it will merely involve looking at how the system responds to legitimate requests and observing the gap between what it does at present and what it ideally should do. Geo-Blocking is (Almost) Useless. A little context first: the Aadhaar website runs over at uidai.gov.in

Hacking 280

Hacking Government Encryption Risk 280

eSecurity Planet

MAY 28, 2021

We look at three RSAC 2021 sessions and some of the most daunting vulnerabilities presented by the SANS Institute, Cybersecurity and Infrastructure Security Agency (CISA), and Varonis Systems. The SANS Institute presentation, “ The Five Most Dangerous New Attack Techniques ,” is an RSAC staple by this point.

Software 119

Software DNS Firmware VPN 119

Malwarebytes

JUNE 5, 2022

” But for all the valid discussion about online anonymity, encryption, and privacy, Tor has an entirely different value proposition for people who build and maintain websites, and that is one of security. “There are so many security risks up the stack,” Muffett said.

Internet 125

Internet Internet DNS Surveillance 125

SecureList

APRIL 25, 2025

The file is not present in a reference Android version. Neither payload is encrypted. Loading the configuration All field values within the configuration are encrypted using AES-128 in ECB mode and then encoded with Base64. Before being sent, the data is encrypted using AES-128 in CBC mode and then encoded with Base64.

Cryptocurrency 85

Cryptocurrency Malware Firmware Accountability 85

SecureList

SEPTEMBER 29, 2021

DNS hijacking. Later this year, in June, our internal systems found traces of a successful DNS hijacking affecting several government zones of a CIS member state. During these time frames, the authoritative DNS servers for the zones above were switched to attacker-controlled resolvers. December 28, 2020 to January 13, 2021.

DNS 142

DNS Malware Engineering Encryption 142

NetSpi Technical

OCTOBER 19, 2023

Here I present a quick overview of this functionality and some ways it may be used. Let’s try DNS. To quickly test if we have DNS outbound, we can use Burp Suite Collaborator. This will give us a unique address that we can query and let us know if a DNS request was received.

DNS 97

DNS Internet Internet Phishing 97

Security Affairs

OCTOBER 20, 2021

” The MSI package first removes registry keys associated with the old Purple Fox installations if any are present, then it replaces the components of the malware with new ones. . “The goal is to install the MSI package as an admin without any user interaction.” ” continues the analysis.

Encryption 116

Encryption DNS Architecture Firewall 116

SecureList

OCTOBER 25, 2023

It comes equipped with a built-in TOR network tunnel for communication with command servers, along with update and delivery functionality through trusted services such as GitLab, GitHub, and Bitbucket, all using custom encrypted archives. The action of these tasks is run of PowerShell loader script.

Malware 145

Malware DNS Encryption Ransomware 145

SecureWorld News

SEPTEMBER 7, 2023

"Preparing for a Post-Quantum World" is the topic of a panel presentation at SecureWorld Denver on September 19, and with good reason. Quantum computing poses a potential threat to current cybersecurity practices, which are based on encryption algorithms that can be broken by quantum computers.

Encryption 113

Encryption Technology Risk Architecture 113

Security Affairs

JULY 23, 2019

Attackers also noticed that systems infected with the above two families were also targeted with the RoyalDNS malware that uses DNS to communicate with the C&C server. Once executed the command the backdoor returns output through DNS. “The Ke3chang APT group (a.k.a.

Malware 110

Malware DNS Advertising Manufacturing 110

Malwarebytes

SEPTEMBER 14, 2022

Don’t both of these mitigate being compromised, since the vulnerability is already technically present? DNS filtering. The next technology you need to prevent cyberattacks is a DNS filter. But first, a little bit about what DNS (domain name system) is. The DNS server, in turn, tells the computer where to go.

Technology 85

Technology DNS Cyber Insurance Insurance 85

eSecurity Planet

MAY 23, 2023

SPF deploys within the Domain Name Service (DNS) records with the organization’s domain hosting provider. Email-receiving servers check the email header for the sending domain and then perform a DNS lookup to see if an SPF file exists that matches the sending domain.

DNS 98

DNS Phishing Authentication Internet 98

Malwarebytes

MAY 12, 2021

Receivers are not required to check whether every fragment that belongs to the same frame is encrypted with the same key and will reassemble fragments that were decrypted using different keys. CVE-2020-24587 : Mixed key attack (reassembling fragments encrypted under different keys). reassembling mixed encrypted/plaintext fragments.

Encryption 118

Encryption Firewall Authentication DNS 118

Security Affairs

JULY 11, 2022

Figure 2 presents an example of an SMS sent to Internet end-users during the ANUBIS social engineering wave. Operators can easily make this configuration through an interface that uses the CloudFlare API for configuring new DNS zones. As observed, criminals are using the Let’s Encrypt CA to create valid HTTPs certificates.

Phishing 103

Phishing Social Engineering Banking Engineering 103

Security Affairs

FEBRUARY 19, 2019

Step-by-step of Muncy malware is presented in Figure 4. Furthermore, the digital certificate presents within this executable also contribute to the high entropy in the.text section. We can easily observe that in the file overlay offsets presented below. An encrypted snippet of code, for instance, has high entropy associated.

Malware 103

Malware Phishing DNS Engineering 103

Security Affairs

JUNE 9, 2022

Other techniques employed by the APT group include DLL hijacking, Themida-packed files, and DNS tunneling to evade post-compromise detection. From 2018 to present, Aoqin Dragon has also been observed using a fake removable device as an initial infection vector. The APT has improved its malicious code over the time to avoid detection.

Malware 98

Malware DNS Encryption Education 98

SecureList

SEPTEMBER 21, 2023

Brute-force attacks on services that use SSH, a more advanced protocol that encrypts traffic, can yield similar outcomes. User files were encrypted, with the device’s interface displaying a ransom note demanding payment of 0.03 DNS changer Malicious actors may use IoT devices to target users who connect to them.

IoT 138

IoT DDOS Passwords Malware 138

eSecurity Planet

MARCH 25, 2022

Recent years presented a torrent of research showing how vulnerable RDP systems are for organizations not taking additional cybersecurity precautions. By exploiting weak server vulnerabilities, the Iran-based hackers were able to gain access, move laterally, encrypt IT systems, and demand ransom payment.

VPN 120

VPN Software Authentication Encryption 120

Lenny Zeltser

MAY 3, 2019

The following checklist presents several categories of attack methods and proposes countermeasures. Use encrypted chat for sensitive discussions. Minimize the use of email, if practical, in favor of closed-group, encrypted messaging tools. Encrypt your network communications and watch out for security warnings.

Cybersecurity 111

Cybersecurity Social Engineering Authentication Software 111

SecureList

JUNE 2, 2022

On January 27, we delivered a joint presentation with TeamT5 and ITOCHU Corporation at Japan Security Analyst Conference (JSAC) to provide an update on the actor’s latest activities. Layout of the encrypted data. Packets exchanged with the C2 server contain a header (described in the next table) followed by AES-encrypted data.

Malware 136

Malware Encryption Social Engineering Telecommunications 136

Security Affairs

DECEMBER 7, 2019

Back to the present, the threat intelligence firm Anomali reported a new wave of attacks that started in Mid-October 2019 and that targeted individuals and entities in Ukraine, including diplomats, government officials and employees, journalists, law enforcement, military officials and personnel, NGOs, and the Ministry of Foreign Affairs.

Government 89

Government Advertising Media DNS 89

eSecurity Planet

JUNE 8, 2023

We will present these options in two categories: a priority tier and an advanced capability tier. It can be time consuming to establish these protocols on an organization’s DNS servers, but doing so will provide two key benefits.

Firewall 80

Firewall DNS Authentication Malware 80

eSecurity Planet

MAY 2, 2024

50,000 DDoS attacks on public domain name service (DNS) resolvers. 553% increase in DNS Flood attacks from 1H 2020 to 2H 2023. DDoS attacks on single networks or websites render them unavailable, but DDoS attacks on DNS resolvers bring down all networks and websites using that DNS resource.

Cybersecurity 121

Cybersecurity DDOS Penetration Testing Passwords 121

McAfee

SEPTEMBER 14, 2021

The PlugX families we observed used DNS [ T1071.001 ] [ T1071.004 ] as the transport channel for C2 traffic, in particular TXT queries. Another clue that helped us was the use of DNS tunneling by Winnti which we discovered traces of in memory. The hardcoded 208.67.222.222 resolves to a legitimate OpenDNS DNS server.

Malware 144

Malware DNS Accountability Manufacturing 144

eSecurity Planet

JULY 28, 2021

If a blockchain user completes a transaction via a web browser, they could unknowingly be presenting sensitive details to a browser hijacker or keylogger. Since the 1970s, Public Key Infrastructure (PKI) has offered encryption , authentication, bootstrapping, and digital signatures to secure digital communications.

Cybersecurity 135

Cybersecurity Cryptocurrency Technology Energy and Utilities 135

Security Affairs

AUGUST 7, 2019

Security researcher Marco Ramilli presents a comparative analysis of attacks techniques adopted by the Iran-Linked OilRig APT group. T1094) mainly developed using DNS resolutions (which is actually one of the main characteristic of the attacker group). and more personal thoughts.

Computers and Electronics 104

Computers and Electronics Penetration Testing DNS Phishing 104

SecureList

JANUARY 13, 2022

If the document was opened offline or the remote content was blocked, it presents some legitimate content, likely scraped or stolen from another party. After sending a beacon to the C2 server, the malware collects general system information, sending it after AES encryption. ecf75bec770edcd89a3c16d3c4edde1a Abies VC Presentation (1).docx.

Cryptocurrency 145

Cryptocurrency Malware Accountability Banking 145

SecureList

MAY 23, 2023

Code snippet used to generate the BOT_ID The resulting BOT_ID is used also to initialize the DES key and IV, which are then used to encrypt communication with the C2. The three values are compressed with GZIP, encrypted with DES, and encoded with base64. This logic is described in the code snippet below, taken from the malware.

Malware 145

Malware Encryption Government Technology 145

eSecurity Planet

MARCH 14, 2023

Encryption will regularly be used to protect the data from interception. In the broadest sense, defense in depth uses: Data security : protects data at rest and in transit such as encryption, database security, message security, etc. DNS security (IP address redirection, etc.),

Network Security 98

Network Security Firewall Penetration Testing Encryption 98