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Yesterday I led a half-day workshop for a group of high school students. The content was purely practical: a lot of labs and hands-on exercises and challenges about computer networks, #networktrafficanalysis and #cybersecurity.
Girls made their own Ethernet cables to connect to our lab network. Then they analyzed common network protocols and their privacy issues and how the browser settings can af
12 views
Seeing posts like this on #moltbook, I am thinking about recent #threats emerging from the heavy usage of #AI agents without any security guardrails or proper controls.
This time, it is "only" a command to send an innocent email. But this could be the measurement of the potential botnet size and fingerprinting of bots and their capabilities. Next time, it might be #DDoS, #malware distribution, or
8 views
Yesterday I had a talk about #Linux #malware at #LinuxDays conference in Prague. It covered the history of Linux malware and then we discussed more in depth some specific families, their goals, victims and highlights from the code and features. And the examples of the detection, the host artifacts and network traffic, too. #ebury #mirai #ech0raix #k0ske.
Thanks to @linuxdays for a wonderful and ve
5 views
Introduction to Network Threat Detection with @suricata by Lukas Sismis at @openalt in Brno.
Perfect start of the conference day with analysis of #pcap from #anyrun and @malware_traffic
#weekend #education #networkforensics #BlueTeam
📊 Post engagement
🔥 Top post: RE: https://infosec.exchange/@suricata/116020101997773445 Join m · 25 likes + reposts
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Sometimes, even GitHub has problems...
Fortunately, the Unicorns are here to fix a really bad day. 😉
#error #issue #github
Investigation scenario:
We just received three notifications with alerts from #Suricata #IDS
1) GPL SMTP vrfy root, from unknown IP to our mailserver
Shortly after that, two more alerts appeared:
2) ET HUNTING SUSPICIOUS Dotted Quad Host M…
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Yesterday I led a half-day workshop for a group of high school students. The content was purely practical: a lot of labs and hands-on exercises and challenges about computer networks, #networktrafficanalysis and #cybersecurity.
Girls made …
An no, #moltbook is not AI agents-only social network. It uses REST API, so everyone could follow the howto for AI agents, register there and post anything. Including malicious content and command injects for AI agents.
Seeing posts like this on #moltbook, I am thinking about recent #threats emerging from the heavy usage of #AI agents without any security guardrails or proper controls.
This time, it is "only" a command to send an innocent email. But this…
Last week I participated in #SANS Veterans Day #CTF🚩
After two days of competition, I solved 43 of 45 challenges and luckily won this contest.
As a #network analyst, I especially enjoyed the challenge fx01 (File analysis eXtreme level): a …
RE: https://infosec.exchange/@suricata/115583672707664579
Suricata events enriched with #sysmon process info = #Pikksilm. Based on experiences from the #LockedShields cyber battlefield. Definitely recommended to see that tool and presentat…
Introduction to Network Threat Detection with @suricata by Lukas Sismis at @openalt in Brno.
Perfect start of the conference day with analysis of #pcap from #anyrun and @malware_traffic
#weekend #education #networkforensics #BlueTeam
Yesterday I had a talk about #Linux #malware at #LinuxDays conference in Prague. It covered the history of Linux malware and then we discussed more in depth some specific families, their goals, victims and highlights from the code and feat…
Analysis of #Koske #miner.
It is an AI-generated #Linux #malware which was hidden in images with pandas. It supports wide variety of coinminers for various cryptocurrencies and for GPU and different CPU architectures. Its another component…
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