News & Insights

Topic: Honeypots

Shadowserver Special Reports – Vulnerable Log4j Servers (2021-12-22 update)

December 22, 2021
A maximum risk critical vulnerability in the popular Apache Log4j open source logging software was made public as CVE-2021-44228 on December 9th 2021, potentially providing attackers with easy remote code execution on thousands of systems globally. Although Shadowserver decided not to scan for this vulnerability, our honeypots continue to detect IPv4 /0 scanning and exploitation attempts. A second run of our Vulnerable Log4j Servers Special Report provides updated data from Alpha Strike Lab's scanning activity performed during the week since our first Special Report. The updated Special Report is being distributed to National CSIRTs and network owners as a public benefit service to aid in rapid remediation.

Log4j Scanning and CVE-2021-44228 Exploitation - Latest Observations (2021-12-16)

December 16, 2021
After our recent Special Report and blog post about vulnerable log4j servers, a quick and dirty update on the “log4shell” mass scanning and attempted CVE-2021-44228 exploitation activity we have been seeing across our global honeypot sensor network between Sunday December 11th and Thursday December 16th, including a quick analysis of the top ten Malware Callback URIs observed and server distribution.

Shadowserver Special Reports – Vulnerable Log4j Servers

December 15, 2021
A maximum risk critical vulnerability in the popular Apache Log4j open source logging software was made public as CVE-2021-44228 on December 9th 2021, potentially providing attackers with easy remote code execution on thousands of systems globally. Although Shadowserver decided not to scan for this vulnerability, our honeypots detected rapid growth in IPv4 /0 scanning. This Special Report provides data from Alpha Strike Labs's scanning activity and is being distributed to National CSIRTs and network owners as a public benefit service to aid in rapid remediation.

Continuing Our Africa and Indo-Pacific Regional Outreach

December 1, 2021
Shadowserver received funding from the UK FCDO in Q1 2021 for a short surge to improve the support we offered to Africa and the Indo-Pacific region. We achieved some good results, so we are providing some public highlights in this blog post. We are also pleased to announce that we have received some additional FCDO funding to continue these efforts through Q4 2021 and Q1 2022, and hope to further expand our free public benefit service coverage to more National CSIRT and additional network owner (ASNs) in these target regions.

Changes in Sinkhole and Honeypot Report Types and Formats

April 1, 2021
Over the years, Shadowserver’s report list has grown considerably from when we originally started. When some of these reports were originally set up, the requirements were different to those needed today. We have therefore decided to implement changes with some of the existing report types, especially those related to our sinkholes and honeypots, as well as remove some legacy reports. Changes will come into effect on 2021-06-01. On that day, the old reports will cease and only the new equivalents will be sent out. Until that time, starting 2021-04-05 both the old reports and new reports will function in parallel.

UK Foreign, Commonwealth & Development Office funds Shadowserver surge in Africa and Indo-Pacific regions

March 18, 2021
Can you help Shadowserver sign up more countries/networks in Africa and the Info-Pacific to receive our free daily network reports and help secure the Internet? We are running a UK FCDO funded surge in Feb/March 2021, aimed at increasing outreach and expanding our honeypot sensor network in those regions. We are seeking introductions, contacts and hosting so please get in touch if you can help us achieve these goals.

Beyond the SISSDEN event horizon

October 1, 2019
Between May 2016 and April 2019, The Shadowserver Foundation participated in the SISSDEN EU Horizon 2020 project. The main goal of the project was to improve the cybersecurity posture of EU entities and end users through the development of situational awareness and sharing of actionable information. It exceeded KPIs, with 257 sensors in 59 countries, using 974 IP addresses across 119 ASNs and 383 unique /24 (Class C) networks, and collected 31TB of threat data. This blog post provides detail on Shadowserver's role in SISSDEN, including a 3 minute explainer video.