Mike Kearn (@michaelkearn) header
Mike Kearn (@michaelkearn) profile picture

Senior Infosec Leader within Financial Services. My 1st computer was an Apple IIe & I remember 300 baud modems. Been doing this awhile.

Land of Cheese, USA
Joined February 2011
Photo by Mike Kearn (@michaelkearn)Photo by Mike Kearn (@michaelkearn)Photo by Mike Kearn (@michaelkearn)Photo by Mike Kearn (@michaelkearn)Photo by Mike Kearn (@michaelkearn)Photo by Mike Kearn (@michaelkearn)Photo by Mike Kearn (@michaelkearn)Photo by Mike Kearn (@michaelkearn)Photo by Mike Kearn (@michaelkearn)Photo by Mike Kearn (@michaelkearn)
Mike Kearn retweeted
People learn in different ways. I wrote Dynamic Incident Response, but not everyone wants to get cozy with a 666 page PDF. So I made a Gemini Notebook too: ask questions, critique, interact how you want. Free. ❤️👨‍💻 dynamicincidentresponse.com/…
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Mike Kearn retweeted
Beginning on October 17, 2026, VAPOR PANDA used the ARTEX harness against more than 200 distinct organizations worldwide, including foreign ministries in Latin America, Europe, Asia, and the Middle East; semiconductor, defense, and think tank organizations in the U.S.; and telecommunications providers in multiple regions. This campaign detailed in the following blog post is separate from the ARTEX activity recently reported by Microsoft under the Storm-0940 designation. CrowdStrike has previously documented ARTEX and similar agentic frameworks in use by financially motivated and unattributed actors; in this campaign, a targeted intrusion adversary used ARTEX to run parallel intrusions against multiple high-value targets. This campaign marks an escalation in China-nexus use of AI agents, from single intrusions to multiple simultaneous engagements directed by a human operator. The operation also shows the adversary building endpoint sensor evasion directly into their agentic workflow, including instructions to identify hosts without the CrowdStrike Falcon sensor. crowdstrike.com/en-us/blog/v…
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If you're a threat Intel pro that's been laid off and you want to come to @CYBERWARCON I have a ticket for you. Hit me up.
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UNC1151 carrying out destructive attack.
#ESETresearch released the latest #ESETAPTActivityReport (Apr–Sep 2026): 🇧🇾 Belarus-aligned APT groups are converging with Russia'’s war priorities; for the first time, we documented a destructive cyberattack by a Belarus-aligned group in 🇺🇦 Ukraine web-assets.esetstatic.com/wl… 1/3
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Mike Kearn retweeted
Threat Intelligence provides insights into the threats facing your geographic region, vertical, and even your lawyer. The latest vertical sector report looks at the legal sector which has increasingly come under fire from nation states and criminals who understand that law firms possess a wealth of sensitive client data. Intrusions targeting legal entities in 2026 have nearly doubled from the 2023 baseline. CHATTY SPIDER's activity targeting legal entities grew 129% in the first eight months of 2026 compared to all of 2024. Its tactics have expanded from callback phishing to voice phishing (vishing), remote tool abuse, and physical intrusion at U.S. law firm locations. Extortion threats escalate: Big game hunting (BGH) adversaries named 455 legal entities on dedicated leak sites from September 2025 to August 2026, a 39% increase from the prior reporting period. China-nexus espionage is evolving: Nearly twice as many China-nexus adversaries targeted the legal sector compared with 2023. Operations now include zero-day exploitation and precision targeting of executive-level personnel. Get the report for the findings you need to protect against threats to the legal sector. crowdstrike.com/en-us/resour…
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Mike Kearn retweeted
Three hours in, the unprompted CTF is now at 24 kernel 0day submissions. The team is working hard on verification
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Mike Kearn retweeted
What I Learned Losing a Million Dollars is probably my favorite book about investor behavior This is the best book I've ever read about paying your tuition to the market gods It's especially important for young investors link.amazon/B01FIYCMS
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This is by far the highest quality confirmation of in-the-wild php2shell exploitation I've seen so far. Deep technical breakdown of a successful exploitation attempt against an Apache mod_php installation running PHP 8.4.26. github.com/0x4D31/honeypot-d… From: nitter.cf/0x4D31/status/21140524…
Replying to @0x4D31
‼️ wow, confirmed more from the same IP, plus a new IP with a different payload that might be a different actor… and this is showing up in multiple regions now. probably better not to burn the honeypots with a full report just yet. if i know you, DM me for the full report. will share a shorter version soon. > That new alert materially expands the case: I’ll verify the three AP-northeast shell events and the curl connection independently, then compare them with the EU-west sequence.
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Current information I have on php2Shell: - The RCEs requires the attacker to obtain memory addresses which are typically protected by ASLR. - I suspect the original author (lcfr_hax) likely has a reliable exploit which leads to stable code execution. - Most of the PoCs being posted are completely non-functional AI slop. - There is at least 1 working non-slop exploit being passed around, but it's reliant on bruteforcing for ASLR bypass, so not particularly impactful. - Rumor of ITW exploitation are patchy. There are attempts being seen using the non-functional leaked RCE, or variants that are config / system specific. - Some rumors point towards a known-working exploit being used by threat actors (I've personally confirmed this specific exploit works, but the ASLR bypass technique is unreliable at best and massively limits the potential impact). - I'd expect heavy ITW exploitation in the next few weeks based on how many people are looking at this. Though, success rates will vary heavily based on the specific exploit chain.
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Mike Kearn retweeted
CrowdStrike Counter Adversary Operations uncovered four previously unreported threat actors weaponizing AI agents in real-world intrusion campaigns, revealing a new level of speed, autonomy, and accessibility for attackers. Key findings: •AI is executing real-world intrusions: Threat actors are using AI agents across the attack life cycle, from reconnaissance to data theft. •Attacks can unfold in minutes: An AI agent moved laterally and harvested domain controller credentials in approximately 20 minutes without additional human guidance. •AI is lowering the barrier to entry: Even low-skilled attackers are using AI to compromise organizations. •AI safeguards can be bypassed: All four threat actors overcame commercial AI safety controls to enable malicious activity. Download the report to see how agentic AI is transforming real-world intrusions and what it means for defenders. r defenders. crowdstrike.com/en-us/resour…
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Mike Kearn retweeted
If you're looking for the most detailed AND *entertaining* way to read about the php2shell bugs, the Calif post is epic: calif.io/php2shell/
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Mike Kearn retweeted
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Mike Kearn retweeted
PHP2Shell update before the 10 AM ET patch: @Cloudflare CTO @dok2001 says they're already seeing early attacks against the two leaked PHP RCE bugs (CVE-2026-109618 and CVE-2026-109619). WAF rules are live for all plans, including free, but he calls it a stopgap. If you run PHP on anything internet facing: Patch the moment @ThePHPF ships at 14:00 UTC. If you can't patch today, take it offline or put it behind a WAF. Make sure your origin isn't reachable directly, or the WAF does nothing. After patching, look for web shells, new admin users and modified PHP files. The servers you know about will get patched today. The harder part is where else PHP hides: routers, NAS boxes, firewalls, control panels and vendor appliances. Many of those only get fixed when the vendor ships firmware, and some never will. Find them, and if they face the internet, cut them off until there's a fix.
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Mike Kearn retweeted
Bringing the fight to the adversary! @Crowdstrike teamed up with @FBI to disrupt laptop farms operating across the U.S. maintained by DPRK-nexus adversary FAMOUS CHOLLIMA to fraudulently employ operatives at American companies while concealing their true location and identity. These laptop farms enabled FAMOUS CHOLLIMA operatives to pose as legitimate remote workers and siphon illicit wages back to their regime while maintaining persistent access to victim organizations. Incredible what can happen when Industry and Government work together! crowdstrike.com/en-us/blog/f…
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This would be an excellent subject for a @CYBERWARCON talk by the way. Last day to submit!
This is one of the most underrated threats in cyber right now and it’s being done all over Europe and the Middle East. This targeting enables lethal follow-on activity and it’s especially alarming as missiles fall and gig economy terrorists are being used so heavily.
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Mike Kearn retweeted
This was a lot of work to get here. Special shoutout to @HackingLZ for doing the brunt of the work (it wasn't easy) and for the amazing folks at @OpenAI - they are awesome to work with. Huge moment for us to continue to expand our capabilities, and this new field that is being formed and rapidly moving ever single day. #TrustedSec
TrustedSec has joined the @OpenAI Daybreak Defense Network! Planned use of #Daybreak Blue and Red will integrate OpenAI GPT cyber models into our offensive and defensive security services, pairing it with the experience and judgment of our consultants. Announcement below 👇
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This is one of the most underrated threats in cyber right now and it’s being done all over Europe and the Middle East. This targeting enables lethal follow-on activity and it’s especially alarming as missiles fall and gig economy terrorists are being used so heavily.
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New sports cars, greater exclusivity, stronger profitability: at its Capital Markets Day, Porsche AG presents its strategy ‘Sportwagenschmiede '35’, which focuses on its medium-term ambitions. More: porsche.click/3TFg7YP
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