DNS Security

A DNS Deep Dive: That VPN Service May Be OpcJacker in Disguise

The more dangerous browsing the Internet becomes, the more tools to address cyber threats emerge in the market. Virtual private network (VPN) service usage, for instance, gained ubiquity due to the ever-increasing number of data privacy intrusions.

Searching for Nevada Ransomware Digital Crumbs in the DNS

How the SVB and Credit Suisse Crash Was Reflected in the DNS

We've proven time and again that the effects of current events always extend to the DNS. Just last month, two big banks - the Silicon Valley Bank (SVB) and Credit Suisse - collapsed. Financial experts said more banks may be bound to follow.

Dissecting 1M+ Malicious Domains Under the DNS Lens

Threat actors continue to abuse the DNS by weaponizing domain names. On 13 April 2023, through our recently launched Threat Intelligence Data Feeds (TIDF), we identified more than 1 million suspicious and malicious domains that figured in phishing, malware distribution, spam, and other cyber attacks, such as brute-force and distributed denial-of-service (DDoS) attacks.

Discovering Potential BEC Scam Vehicles Through the DNS

Threats tend to become more advanced over time. So is the case of business email compromise (BEC) scams, which according to a SlashNext post, cost companies billions of U.S. dollars in losses per year.

Looking for Traces of Social Media-Based Celebrity Scams in the DNS

Infoblox, in its Q4 2022 Cyber Threat Report, featured a "Meta" coin scam using fake celebrity endorsements targeting users in the European Union (EU). The analysis revealed several indicators of compromise (IoCs), specifically four domains and one IP address, that could help the public avoid the perils the scams posed.

Uncovering Stolen Card E-Shops Using DNS Intelligence

Ever wondered where the personally identifiable information (PII) phishers steal from victims end up? More likely than not, they're put up for sale on the ever-growing number of online stolen card shops.

Detecting Possible Fraud Vehicles Specific to Latin America and the Caribbean

Although fraud is a global issue, some threats may be unique to certain regions. Accertify listed some subtrends specific to Latin America and the Caribbean (LAC), including those involving the airline and digital wallet industries.

Drawing the Line Between SYS01 and Ducktail Through DNS Traces

Back in January of this year, we studied the infrastructure of Ducktail, a malware that trailed its sights on Facebook business owners and advertisers. Just this month, Morphisec researchers found a similar threat they've dubbed "SYS01."

Black Basta Ransomware DNS Investigation Led to OneNote and Courier Impersonation

Among the most active and rapidly spreading ransomware in 2022 was Black Basta. It was first detected in April 2022 and victimized nearly 100 organizations in North America, Europe, and Asia by September that same year. As a ransomware-as-a-service (RaaS) malware, Black Basta employs double extortion to force victims to pay the ransom.