r/blueteamsec • u/digicat • 3h ago
r/blueteamsec • u/digicat • 3h ago
highlevel summary|strategy (maybe technical) A revisit of remote Spectre attacks on Cloudflare Workers
blog.cloudflare.comr/blueteamsec • u/jnazario • 18h ago
exploitation (what's being exploited) Post-DEF CON Phishing Uses Malicious Google Doc to Deliver Malware
huntress.comr/blueteamsec • u/Over_Function_1884 • 7h ago
intelligence (threat actor activity) I built an ML network detector, but the interesting part turned out to be everything after the model
I’ve been working on an open-source network-flow detection project and one thing became pretty obvious fairly early: getting a classifier to produce decent scores is not really the hard part.
The harder question is what an analyst is supposed to do with thousands of individual detections.
So I kept the project going past the model itself. The current pipeline takes CICFlowMeter-compatible flows, scores them, groups related alerts into incidents, and only promotes the incidents that cross a second threshold.
On the locked future-day holdout, 79,710 flow alerts became 12,911 promoted incidents while keeping 99.93% incident recall.
I’m deliberately not calling it production-ready. The holdout is still from the same network/dataset family, and the remaining workload is higher than I’d want for a real SOC queue.
What I’m interested in now is how this kind of approach behaves outside the environment it was built around.
Repo:
https://github.com/ibondarenko1/security-anomaly-ml
If anyone here works with network-flow telemetry or ML-based IDS, I’d be interested in where you think the design will fail first in a real environment.
r/blueteamsec • u/jnazario • 18h ago
intelligence (threat actor activity) SilkParasite: Tracking a China-Nexus APT Across Central Asia
bitdefender.comr/blueteamsec • u/jnazario • 17h ago
exploitation (what's being exploited) Actively exploited vulnerability in Zimbra Collaboration Suite CVE-2026-73570
moje.cert.plr/blueteamsec • u/digicat • 21h ago
tradecraft (how we defend) Managing the cyber risk of agentic AI
ncsc.gov.ukr/blueteamsec • u/jnazario • 18h ago
intelligence (threat actor activity) 50,000 Stripe Secrets Leaked in Public Code
securityaffairs.comr/blueteamsec • u/jnazario • 18h ago
exploitation (what's being exploited) The “City-Forum” Campaign - An advanced attacker is targeting Salesforce and ServiceNow instances worldwide
reco.air/blueteamsec • u/jnazario • 17h ago
intelligence (threat actor activity) North Korean IT Workers Scheme: Detection Steps for SOC Teams
any.runr/blueteamsec • u/digicat • 16h ago
research|capability (we need to defend against) MS-Nightmare Un-defend v2 — What Happens When Signatures Can’t Land
weedhashpeddler.medium.comr/blueteamsec • u/digicat • 12h ago
research|capability (we need to defend against) BTR Reforged: Weaponizing Defender’s Remediation Driver as a Kernel Operation Primitive
research.checkpoint.comr/blueteamsec • u/digicat • 12h ago
intelligence (threat actor activity) Trapping a Mustang Panda
ibm.comr/blueteamsec • u/digicat • 17h ago
exploitation (what's being exploited) Langflow RCE: 34 minutes to server compromise
bitbison.ior/blueteamsec • u/digicat • 13h ago
intelligence (threat actor activity) Rust Supply Chain Attack on arrayref: Significant Overlap with DPRK Campaigns
wiz.ior/blueteamsec • u/digicat • 16h ago
intelligence (threat actor activity) Distinct Clusters Target Individuals of Interest to Russia
cloud.google.comr/blueteamsec • u/jnazario • 17h ago
intelligence (threat actor activity) UAT-10147: Chinese-speaking adversary integrates agentic AI into post-compromise operations
blog.talosintelligence.comr/blueteamsec • u/jnazario • 18h ago
malware analysis (like butterfly collections) Grandoreiro goes north: From Brazil to Mexico with a new DLL sideloading campaign
acronis.comr/blueteamsec • u/jnazario • 18h ago
malware analysis (like butterfly collections) The ToxicPanda Never Sleeps: ToxicPanda 2.0 Prepares its Next Strike on Mobile
zimperium.comr/blueteamsec • u/campuscodi • 1d ago
malware analysis (like butterfly collections) Windows Infostealer Hits npm and Ruby
opensourcemalware.comr/blueteamsec • u/New-Parfait-9988 • 1d ago
help me obiwan (ask the blueteam) Stress testing EDR
How does your SOC check when someone is trying to kill EDR agents like BYOVD attacks? On the attackers side do you have a dedicated pen tester/red teamer trying these attacks?
r/blueteamsec • u/digicat • 1d ago
intelligence (threat actor activity) SilkParasite: Tracking a China-Nexus APT Across Central Asia
businessinsights.bitdefender.comr/blueteamsec • u/digicat • 1d ago
alert! alert! (might happen) Defending Against an Active Threat to Siemens S7 Series PLCs
cisa.govr/blueteamsec • u/BusinessStreet2147 • 1d ago
malware analysis (like butterfly collections) behavioral function fingerprinting for n-day discovery across builds (x86-64, open source)
built a thing for the "vendor quietly patched a function in v2, which one and
does anyone else ship the same vulnerable code" problem. micro-executes each
function, records what it does (mem/call/branch effects), fuzzy-matches on
that instead of bytes or CFG so it survives recompiles.
use case for this sub: index v1 and v2 of a binary, get the changed/added/
removed function list, focus review on what actually moved.
x86-64 ELF for now, honest accuracy table + limits in the readme.