eSecurity Planet

SEPTEMBER 3, 2022

For example, the 2016 DDoS attack on the Dyn managed domain name service (DNS) caused the DNS service to fail to respond to legitimate DNS inquiries and effectively shut down major sites such as PayPal, Spotify, Twitter, Yelp, and many others. Also read: How to Secure DNS. Types of DDoS Attacks. Harden infrastructure.

DDOS 145

DDOS DNS Firewall Internet 145

eSecurity Planet

NOVEMBER 3, 2022

Deploy DDoS Monitoring : Watch for signs of an attack and document attacks for future improvements. DNS servers can be specifically targeted by attackers and vulnerable to various types of attacks. If the organization does not use it, UDP access to port 53 (DNS) should be blocked. Hardening Against DDoS Attacks. Anti-DDoS Tools.

DDOS 126

DDOS Firewall DNS Architecture 126

SecureList

JANUARY 13, 2022

A document sent from one colleague to another on a topic, which is currently being discussed, is unlikely to trigger any suspicion. Ultimately, it elevates the level of trust sufficiently for the document to be opened. server-side document viewer like GoogleDocs, Collabora Online, ONLYOFFICE, Microsoft Office Online, etc.).

Cryptocurrency 145

Cryptocurrency Malware Accountability Banking 145

SecureList

APRIL 24, 2023

Introduction We introduced Tomiris to the world in September 2021, following our investigation of a DNS-hijack against a government organization in the Commonwealth of Independent States (CIS). Tomiris’s endgame consistently appears to be the regular theft of internal documents. Some samples contain traces of Russian language.

Malware 135

Malware DNS Government Software 135

Malwarebytes

FEBRUARY 28, 2024

This activity was immediately blocked by ThreatDown, marking the first documented evidence of a security breach. Restoring all infected endpoints from secure backups, eliminating the use of local administrator accounts, and implementing application and DNS filtering to control software usage and web access.

Malware 104

Malware DNS Surveillance Backups 104

eSecurity Planet

APRIL 26, 2024

Server: Provides powerful computing and storage in local, cloud, and data center networks to run services (Active Directory, DNS, email, databases, apps). Domain name system (DNS) security: Protects the DNS service from attempts to corrupt DNS information used to access websites or to intercept DNS requests.

Architecture 122

Architecture Network Security Firewall Risk 122

eSecurity Planet

SEPTEMBER 7, 2021

Or they can package malware that can be directly installed on your machine or come through an email attachment disguised as something trustworthy , like a document or link from your boss. Monitoring infrastructure like Domain Name Servers (DNS) and web servers for malicious activity. Put recovery strategies in place.

Software 138

Software Antivirus Risk Malware 138

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. 54% on-prem infrastructure.

Cybersecurity 123

Cybersecurity DDOS Penetration Testing Passwords 123

McAfee

SEPTEMBER 14, 2021

IOCs that could be shared are at the end of this document. 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.

Malware 144

Malware DNS Accountability Manufacturing 144

eSecurity Planet

FEBRUARY 24, 2022

Can spot backup and configuration files. Amass is an open-source network mapper that is particularly efficient for DNS (Domain Name System) and subdomain enumeration. Amass is an open-source network mapper that is particularly efficient for DNS (Domain Name System) and subdomain enumeration. Great documentation.

Penetration Testing 122

Penetration Testing Wireless Passwords Social Engineering 122

Security Affairs

JUNE 14, 2023

The malware then uses a kleptomaniacal scheme to harvest database credentials, archive files, log data, or valuable documents that aren’t adequately secured, while establishing numerous Command and Control (C2) channels for persistence. Balada is not an overly shy malware campaign.

Malware 98

Malware DNS Software Penetration Testing 98

SecureList

DECEMBER 1, 2023

Upon startup, this backdoor makes a type A DNS request for the <hex-encoded 20-byte string> u.fdmpkg[.]org After parsing the response to the DNS request, the backdoor launches a reverse shell, using the secondary C2 server for communications. An Excel document was attached to the message. org domain.

Malware 138

Malware Ransomware Encryption Energy and Utilities 138

eSecurity Planet

JANUARY 26, 2022

encryption in transit Tools for remote management , global dashboards, and geo IP tracking Access to 24×7 DevOps team for technical support and remediating active threats Logical secure access including role-based access control, 2FA , and SSO Automate configuration backup and recovery for resilient policies and controls.

Marketing 122

Marketing DDOS Threat Detection DNS 122

Security Boulevard

JANUARY 17, 2024

When creating payloads such as Office documents, .pdf Be mindful of how you implement the password, though, as fully encrypting a document with a password may get the file blocked since it cannot be scanned. If we dig into the documentation, we can get the complete set of information on the non-scannable files (Figure 10).

DNS 64

DNS Penetration Testing Passwords Encryption 64

eSecurity Planet

MARCH 22, 2023

Policies typically will be written documents that detail the requirements that will be enforced, such as password complexity. Similarly, spoofed domain name system (DNS) and IP addresses can redirect users from legitimate connections to dangerous and malicious websites.

Firewall 111

Firewall Network Security Penetration Testing Encryption 111

eSecurity Planet

NOVEMBER 18, 2021

Point-in-time backup and recovery of contacts, email, calendars and files. Document sanitization automatically removes document properties such as author, subject, status, etc. TitanHQ’s SpamTitan and WebTitan address email and DNS filtering for the SMB and MSP market. 100% email uptime SLA.

Phishing 126

Phishing Malware Engineering Ransomware 126

SecureWorld News

APRIL 30, 2023

Out of sheer ignorance, someone can put a secret document in a folder with public access or request unnecessary privileges for working with files. Many advanced security systems cannot prevent a scenario in which a user takes a screenshot from a confidential document and then sends it via Telegram to an unauthorized recipient.

Technology 98

Technology Unstructured Data Data breaches Information Security 98

Security Boulevard

APRIL 4, 2022

On September 15, 2021, the DNS records for acme-v01.api.letsencrypt.org And that’s one of the advantages that the ACME protocol documentation highlights: “Existing Web PKI certification authorities tend to use a set of ad hoc protocols for certificate issuance and identity verification. api.letsencrypt.org were removed.

Encryption 52

Encryption Authentication DNS Risk 52

Veracode Security

NOVEMBER 19, 2020

Researchers found that TrickBot developers created a tool called anchor_dns which uses a single-byte X0R cipher to obfuscate communications and, once de-obfuscated, is discoverable in DNS request traffic. C:WindowsSysWOW64. BazarLoader has become one of the most commonly used vectors for ransomware deployment.???

Healthcare 52

Healthcare Ransomware Phishing Social Engineering 52

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). In fact, this is the justification used in the RFC8555 documentation. In addition, ACME can make the process of choosing a backup CA a fairly easy one. Let's Encrypt simplifies this.". .

Encryption 52

Encryption DNS Backups Internet 52

Security Boulevard

FEBRUARY 26, 2021

In the past, a ransomware attack typically originated in a phishing email where the victim unwittingly opened an infected document or clicked a link that executed actions to immediately encrypt the environment and demand a ransom. Or they might move the data out slowly through protocols such as DNS.

Ransomware 59

Ransomware Encryption Phishing DNS 59

Fox IT

JANUARY 12, 2021

In one specific case, the adversary now armed with the valid account, was able to access a document stored in SharePoint Online, part of Microsoft Office 365. This specific document described how to access the internet facing company portal and the web-based VPN client into the company network. The DNS-responses weren’t logged.

VPN 68

VPN Accountability Passwords DNS 68

SecureList

FEBRUARY 10, 2022

In some cases, DNS amplification was also used. The Internet giant also took steps to eliminate the botnet itself by blocking 63 million malicious documents, 908 cloud projects, more than a thousand Google accounts and a further 870 Google Ads accounts. Google also worked with other companies to shut down the botnet’s C2 servers.

DDOS 143

DDOS Cryptocurrency Marketing Accountability 143

Security Boulevard

JUNE 28, 2023

You decide to take a look at their DNS cache to get a list of internal resources the user has been browsing and as you look through the list, there are several that you recognize based on naming conventions. Introduction Let me paint a picture for you. One in particular might be interesting: Atlassian.

Authentication 52

Authentication Passwords Penetration Testing Social Engineering 52

eSecurity Planet

FEBRUARY 16, 2021

This exposed data includes everything from emails and documents typed to passwords entered for authentication purposes. Moving away from trying to trick users, pharming leverages cache poisoning against the DNS , using malicious email code to target the server and compromise web users’ URL requests. Keyloggers. RAM Scraper.

Malware 105

Malware Adware Spyware Antivirus 105

Pen Test

DECEMBER 10, 2024

Backup and Snapshot If you’re running Kali Linux on a virtual machine, it’s a good practice to take a snapshot of your setup once you have everything configured. Select “Active Directory Domain Services” and “DNS Server.” This adds the new user and grants them sudo privileges.

Penetration Testing 40

Penetration Testing Firewall DNS Wireless 40

Kali Linux

OCTOBER 12, 2022

Now, we can just simply run the suggested command when setting up dnscat2-server on our other machine: kali@kali-raspberry-pi-zero-w-p4wnp1-aloa:~$ dnscat --dns server=10.0.13.37,port=53 port=53 --secret=5672ddb107fe2f33e490a83e8d1036ca Creating DNS driver: domain = (null) host = 0.0.0.0 Session established!

Wireless 52

Wireless Passwords DNS Internet 52

Fox IT

JUNE 23, 2020

Of course, these choices will also be heavily influenced by what we may term their ‘business model’ – which also means they should be able to disable or disrupt backup applications and related infrastructure. In short, WastedLocker uses a well-documented UAC bypass method [1] [2]. CobaltStrike C&C Domains. Windows NT 6.3;

Ransomware 44

Ransomware Encryption Malware Architecture 44