Threat Intelligence

The Purple Team Pentest

It's not particularly clear whether a marketing intern thought he was being clever or a fatigued pentester thought she was being cynical when the term "Purple Team Pentest" was first thrown around like spaghetti at the fridge door, but it appears we're now stuck with the term for better or worse. Just as the definition of penetration testing has broadened to the point that we commonly label a full-scope penetration of a target's systems with the prospect of lateral compromise and social engineering as a Red Team Pentest -- delivered by a "Red Team" entity operating from a sophisticated hacker's playbook. more

.COM - The Riskiest Top-Level Domain?

A couple of weeks ago, NetworkWorld published an article indicating that the .com TLD was the riskiest TLD in terms of containing code that can steal passwords or take advantage of browser vulnerabilities to distribute malware... It is unclear to me what they mean by TLD's being risky. The number of domains, 31.3% of .com's being considered risky, what does this actually mean? Is it that 31% of .com's are actually serving up malware or something similar? If so, that seems like a lot because for many of us, nearly 1 in every 3 pages that most people visit would be insecure... more

DNS, Domain Names, and Certificates: The Missing Links in Most Cybersecurity Risk Postures

In 2019, we've seen a surge in domain name system (DNS) hijacking attempts and have relayed warnings from the U.S. Cybersecurity and Infrastructure Agency, U.K.'s Cybersecurity Centre, ICANN, and other notable security experts. Although the topic has gained popularity amongst CIOs and CISOs, most companies are still overlooking important security blind spots when it comes to securing their digital assets outside the enterprise firewalls -- domains, DNS, digital certificates. more

Russian Cybercrime is Organized / Russian Cybercrime is Not Organized

The more I read, the more I see conflicting views on the state of the criminal cybercrime world. On the one hand, the Russian criminal cybercrime underworld is a scary, organized place... On the other hand, there is the position that that position is an exaggeration of what it is actually like and that it's a bunch of ragtag folks who have some advanced computer skills but they are not formally organized. ... I see this very similarly to how I see cyber warfare... more

Cloud Security Hinges on IP Addressing

In the first part of this trilogy, I discussed the importance of automatically provisioned second generation DNS in connection with Software Defined Networking (SDN) and Software Defined Data Centre (SDDC). In the second post, I talked about IP addressing, private enterprise networks, and how DHCP does not meet the requirements of multitenant Infrastructure-as-a-Service (IaaS) cloud environments. I will now wrap up this trilogy by putting these two thesis into real-life context. more

Comcast Announces Completion of DNSSEC Deployment

Comcast, a leading ISP in the U.S., has fully deployed Domain Name System Security Extensions (DNSSEC) according to a company announcement today. Jason Livingood, Comcast's Vice President of Internet Systems writes: "As of today, over 17.8M residential customers of our Xfinity Internet service are using DNSSEC-validating DNS servers. In addition, all of the domain names owned by Comcast, numbering over 5,000, have been cryptographically signed. All of our servers, both the ones that customers use and the ones authoritative for our domain names, also fully support IPv6." more

Chuck Norris Botnet and Broadband Routers

Last week Czech researchers released information on a new worm which exploits CPE devices (broadband routers) by means such as default passwords, constructing a large DDoS botnet. Today this story hit international news... The spread of insecure broadband modems (DSL and Cable) is extremely wide-spread, with numerous ISPs, large and small, whose entire (read significant portions of) broadband population is vulnerable. more

Only Bad Actors Should Worry About the URS

With DNS abuse a topic of increased concern throughout the community, any controversy over adopting the Uniform Rapid Suspension System (URS) for all generic top-level domains (gTLDs) seems misplaced. The URS was designed as a narrow supplement to the Uniform Domain-Name Dispute Resolution Policy (UDRP), applicable only in certain tightly defined circumstances of clear-cut and incontrovertible trademark infringement involving the registration and use of a domain name. more

Will a Global TAR Make DNSSEC Stick?

Two US Government contractors and the National Institute of Science and Technology have released a white paper, "Statement of Needed Internet Capability," detailing possible alternatives and considerations for a Trust Anchor Repository (TAR) to support DNSSEC deployment. The document was released through the DNSSEC-Deployment Group this week with a request that it be circulated as widely as possible to gather feedback. A Trust Anchor Repository (TAR) refers to the concept of a DNS resource record store that contains secure entry point keys... more

The Harsh Reality of Spam and Online Security… Should I Stay or Should I Go?

Working in the anti-spam and online malware fight can be depressing or at best invoke multiple personality disorder. We all know things are bad on the net, but if you want a dose of stark reality, check out Brian Kreb's fantastic 'Security Fix' blog on the Washington Post site... Speaking to an old friend who asked me what I was doing these days, I recently likened the fight against this relentless onslaught to having one's pinky in a dyke, and there are days when I don't even think we have a dyke! more

Why Private Support of Cyber Security Initiatives May Not Work

A fledgling international cyber security alliance is continuing to gather backing from private business, according to a recent article published on ComputerWeekly.com. The International Cyber Security Protection Alliance (ICSPA) aims to support law enforcement agencies in countries that lack the resources to fight cybercrime. Commercial security organizations such as McAfee and Trend Micro are supporting the alliance. more

Minimum Disclosure: What Information Does a Name Server Need to Do Its Job?

Two principles in computer security that help bound the impact of a security compromise are the principle of least privilege and the principle of minimum disclosure or need-to-know. As described by Jerome Saltzer in a July 1974 Communications of the ACM article, Protection and the Control of Information Sharing in Multics, the principle of least privilege states, "Every program and every privileged user should operate using the least amount of privilege necessary to complete the job." more

Warning, Danger Lurks Here: Exploring DKIM/ADSP Edge Cases - Missing message-id

This article is the first in an occasional series on DKIM/ADSP edge cases that may not be generally recognized or understood. Many people advocate DKIM/ADSP adoption without fully recognizing potential implementation and operational issues. The fact is that the email messaging environment is fraught with opportunities for poor outcomes because of common practices that need to be considered or poorly understood implementations that are not considered... more

APNIC Labs Partners with Cloudflare for Joint DNS Research Project

APNIC Labs, the research arm of Asia-Pacific Network Information Centre, is partnering with Cloudflare for a joint research project relating to the operation of the DNS, reports Geoff Huston, APNIC's Chief Scientist. more

New Technique Detects and Eliminates Abusive Domains at Time of Registration

A team of researchers from Princeton University and the University of California has developed a machine-learning algorithm named PREDATOR that can accurately establish domain reputation at the time of domain registration. more