NetworkMiner 3.2 parses RADIUS authentication data and extracts more details from the OT/ICS protocols UMAS and IEC-104. The release also improves several existing protocol parsers and fixes file-reassembly issues, helping analysts extract more information from captured network traffic. OT Protocol[...]

Security operations teams are handling increasing volumes of network events and security alerts. Whether those alerts are reviewed by human analysts, processed by AI, or handled through a combination of both, the result depends on the quality of the underlying detections. No SOC can investigate an i[...]

Identifying malware families is hard. Malware samples are often packed, strings encrypted and configurations may only appear after several stages of execution. Even experienced reverse engineers can get the malware family wrong and commercial sandboxes do not always produce correct classifications.[...]

A few more handy features have been added to PolarProxy, our TLS inspection proxy. PolarProxy can now tunnel outgoing connections through SOCKS proxies and supports environment variables as an alternative to command-line arguments. PolarProxy also ships with a software bill of materials (SBOM), prov[...]

CERT Polska recently published a follow-up report detailing the hack of a Polish combined heat and power (CHP) plant in December 2025. CERT Polskas report concludes with several important recommendations, including protecting OT systems through network segmentation and monitoring traffic entering an[...]

This post describes the binary command-and-control (C2) protocol used by CNCMachineRMS, a recently identified remote access trojan (RAT). We cover how the protocol was discovered, how its infrastructure was identified, and how network defenders can detect it. Background We have been tracking a previ[...]

Please stop classifying malware as zgRAT. That malware label is confusing. As far as I know, there isnt a proper definition of what zgRAT actually is. Some claim that zgRAT is the same malware family as PureLogs, while others argue that zgRAT should be mapped to PureRAT. There is also a blog post by[...]

Fareed Radzi recently blogged about a malware campaign observed earlier in June by Kasperskys GReAT team. The malware campaign embedded malicious code in VBScripts, which were distributed through WhatsApp DMs. The VBScript then dropped the legitimate Remote Monitoring and Management (RMM) tool Manag[...]

Ive been thinking about threat intelligence lately. Specifically: indicators of compromise (IOC), how and where to share them to cause maximum pain to adversaries and help as many organizations as possible protect themselves. I regularly analyze malware traffic from sandboxes such as ANY.RUN, Triage[...]

Our TLS inspection proxy PolarProxy has been updated with bug fixes, improved performance and more reliable PCAP output. The recent PolarProxy 2.0 release added musl/Alpine compatibility and support for unencrypted HTTP proxy requests. But there were a few small, yet very important, updates that unf[...]

CapLoader has been updated to version 2.1.0. The new release comes with better JA3/JA4 extraction and integration of additional threat-intel and OSINT services. We have also added support for more encapsulation protocols. TLS Client Hello Reassembly TLS handshakes no longer reliably fit in a single[...]

A new major release of PolarProxy is out with a self-contained single-file binary, expanded platform support (musl/ARM), and improved container and service plumbing. PolarProxy is a transparent TLS/SSL inspection proxy built for incident responders, malware analysts and security researchers. It decr[...]

There is a wonderful little web based alert and event front-end called EveBox, which renders Eve JSON formatted data to a graphical user interface. This blog post demonstrates how EveBox can be used to show alert and flow information that FlowCarp has extracted from a Remcos malware infection. Remco[...]

I am thrilled to announce the release of a brand new tool called FlowCarp! FlowCarp is a simple command line tool that performs a very complicated task. It identifies the application layer protocol in network traffic without relying on port numbers, static signatures or code that tries to parse the[...]

Between 10 and 14 November 2025, the latest phase of Operation Endgame was coordinated from Europol’s headquarters in The Hague. The actions targeted one of the biggest infostealers (Rhadamanthys), the Remote Access Trojan VenomRAT, and the botnet Elysium, all of which played a key role in international cybercrime. Authorities took down these three large cybercrime enablers. The main suspect for VenomRAT was also arrested in Greece on 3 November 2025.