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WhoisXML API Blog

May 2022: Elon Musk Buys Twitter, Mother’s Day Celebration, the Return of Operation Dream Job, and NFT Mania

We detected significant domain and DNS activity relevant to some of the top current events seen in April 2022. Check out the overview below, and feel free to download the dedicated threat reports where available.

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April 2022: Digital Spillovers of War, Oscars Slapping Fiasco, and Tax Season Frenzy

Here are some of the top events in March 2022 for which we detected significant connected domain and DNS activity. See below for an overview, and feel free to download the dedicated threat reports where available.

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Secure Your SSH Server with iptables and IP Netblocks API

Secure shell (ssh) is the typical tool for getting secure command-line access to Linux (and other Unix flavor) systems. Notably, most Linux-based servers are administered remotely via ssh access. Hence the security of the ssh service is of paramount importance, especially since it is often a very attractive part of the attack surface of an organization. 

The present blog provides a discussion on setting up efficient firewall rules for the ssh service, and extending the whitelist easily with the help of WhoisXML API's IP Netblocks API. The method also works for other services using inbound tcp connections. We discuss a typical iptables firewall on a Linux system. Basic expertise in Linux tools and firewalls is assumed. The recipe works as it is, or with minor modifications also on other systems. 

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The Domain Research Suite (DRS) Guide for Journalistic and Media Research

As an aggregator of WHOIS, DNS, and IP data, WhoisXML API can help back up journalistic investigations with verifiable online facts about domains and websites. Researchers and media professionals can use our 9-in-1 hosted Domain Research Suite (DRS) platform to investigate suspicious domains, detect domain registration trends, keep track of the government’s or private sector’s actions towards errant websites, and more.

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Getting Started with WhoisXML API’s Newly Registered & Just Expired Domains Database

Getting Started with WhoisXML API’s Newly Registered & Just Expired Domains Database

WhoisXML API’s Newly Registered & Just Expired Domains Database (NRD Database) has a new and improved version. NRD 2.0 features the following changes from NRD 1.0:

  • Outputs now come in JSON and CSV.
  • A file dedicated to statistics can be downloaded along with the data.
  • NRD 2.0 has more data sources and covers more TLDs, giving you daily access to over 1+ million records.  
  • New subscription plans are available to meet diverse data needs.
  • Users enjoy a concise and consistent file and directory structure across different subscription plans.

Learn more about NRD 2.0 in this comprehensive guide.

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Managing Domain Attack Surfaces in the Financial Sector with WhoisXML API

While the cybersecurity landscape constantly evolves, the targets remain consistent. Among the hardest hit by cyber attacks is the financial services industry. In Verizon’s 2021 Data Breach Investigations Report (DBIR), for instance, 65% of security incidents in the industry resulted in confirmed data disclosure.

Mitigating this problem begins by determining where the threat actors are attacking from—inside or outside? Identifying attack vectors is also pertinent.

Threat actors in the financial sector vary. Some are institution insiders and partners, while 56% are external parties. The top attack vectors are phishing and other social engineering campaigns.

One of the keys to a digitally safer financial industry is properly managing as many external attack vectors as possible. External Attack Surface Management (EASM) Solutions that uncovers and addresses vulnerable and dangerous Internet-facing assets, can help achieve this feat.

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Scoping the Domain Asset Surface of Today’s Most-Impersonated Brand (Hint: That’s a Bank)

Microsoft often lands at the top of global lists of most-impersonated brands over time. But that’s not always the case as per this research by Vade in which Crédit Agricole was identified as phishers’ favorite.

Building on this finding, we took a closer look at look-alike DNS Internet assets to check if they could be possible contributors to Crédit Agricole becoming a favored phishing target. By scoping part of its DNS attack surface, we hope to shed more light on the subject from a domain registration perspective. Could the volume of typosquatting domains have anything to do with the occurrence?

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Demonstrating bulk reverse passive DNS lookup with PowerShell for IT security investigations: the case of the Phorphiex botnet

IP addresses are straightforward input data for IT security investigations: they are technically necessary for nodes of the Internet to communicate. Hence, if they are not deleted in some tricky way after cybercrime has been committed, or they are to be found in any of the logs before the commitment, they help a lot to unfold what has actually happened. 

IBM Xforce exchange is a forum reporting many security incidents that are relevant for those who are in charge of maintaining IT security. In the present blog we shall pick one of their reports and check how we can extend the given information with WhoisXML APIs using PowerShell which comes installed on Windows and can be used on Linux and Mac OS X, too. We assume lower intermediate skills of PowerShell programming to follow the description below. 

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