Tag: Threats
Introduction Welcome to the September 2024 installment of the Sensor Intelligence Series, our monthly summary of vulnerability intelligence based on distributed passive sensor data. Following on from our last month’s analysis, scanning CVE-2017-9841 continues to drop, falling by 10% compared to August, and now down 99.8% from its high-water mark in June of 2024, and…
Read MoreIntroduction Welcome to the August 2024 installment of the Sensor Intelligence Series, our monthly summary of vulnerability intelligence based on distributed passive sensor data. Last month, we observed the scanning for CVE-2017-9841 fell sharply, and this month is no different, with scanning for that vulnerability falling another 79% from July’s rate. Overall, it’s down 97.4%…
Read MoreIP Infrastructure Analysis, Use of Hosting Infra or Corporate IP Ranges (Geo Location Matching) Scrapers have to distribute their traffic via proxy networks or bot nets so as to spread their traffic over a large number of IP addresses and avoid IP-based rate limits that are used to block unwanted scraping. Because of this, scrapers…
Read MoreIntroduction Welcome to the July 2024 installment of the Sensor Intelligence Series, our monthly summary of vulnerability intelligence based on distributed passive sensor data. Last month we observed a massive increase in scanning for CVE-2017-9841 as well as continued increases in scanning for CVE-2023-1389 and scanning for a newly discovered PHP vulnerability – CVE-2024-4577. This…
Read MoreSearch Engine Companies These are typically crawlers or spiders belonging to large search engine providers. They index content from websites all over the internet so they can help users of their search engines to find things on the internet. Google, Bing, Facebook, Amazon, Baidu, etc. all have scrapers that regularly visit every single website on…
Read MoreNote the large increase in the number of unique source IPs and source ASNs. Between May and June, 38 different source ASNs dropped from the scanning activity, and 179 were added. This is unusual. While scanners will abandon infrastructure as takedowns happen, or access is revoked, they typically do not make such massive changes without…
Read MoreThe Mozi botnet has been documented as able to conduct HTTP, TCP, UDP, and other attacks. More information can be found in the April 2024 Sensor Intel Series article. [back to top] And Another Step Back: Emerging DDoS Attack Vectors HTTP/2 Abuse The relatively new HTTP/2 protocol (new in internet terms, since the protocol is…
Read MoreWho Is Scanning for CVE-2023-1389? Back in April, when we first started tracking CVE-2023-1389, we did an analysis of who was scanning for it, and found that the majority of scanning activity was coming from just two ASNs, AS49870 (Alsycon, a hosting provider out of the Netherlands) and AS47890 (Unmanaged Ltd). Running these analyses again,…
Read MoreIntroduction Last month’s Sensor Intel Series for March 2024 uncovered the explosion in traffic hunting for systems affected by CVE-2023-1389. The flaw which related to TP-Link Archer AX21 Wi-Fi routers has quickly become the new darling of threat actors looking to build out their DDoS botnets. No new signatures have been introduced this month. Instead,…
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Today is a monumental day for the cybersecurity industry. Live from RSA Conference 2024, I’m excited to introduce LevelBlue – a joint venture with AT&T and WillJam Ventures, to form a new, standalone managed security services business. You can read more about the news here. In 2022, I founded my private equity firm, WillJam Ventures,…
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