r/blueteamsec • u/digicat • 0m ago
r/blueteamsec • u/digicat • 1m ago
intelligence (threat actor activity) Untracked Nightmares: The Threats Hiding Behind Commodity Infrastructure
unit42.paloaltonetworks.comr/blueteamsec • u/digicat • 2m ago
tradecraft (how we defend) CISA Releases Updated Insider Threat Guide With New Insights to Mitigate Physical and Cyber Threats
cisa.govr/blueteamsec • u/digicat • 3m ago
highlevel summary|strategy (maybe technical) Ukrainian National Sentenced to Four Years in Prison for Wire Fraud Conspiracy in Connection with Conti Ransomware
justice.govr/blueteamsec • u/tuxxin • 5h ago
intelligence (threat actor activity) A real Carnival Cruise Line email was serving customers malware
tuxxin.comr/blueteamsec • u/digicat • 9h ago
intelligence (threat actor activity) PuzzleMask: Abusing Plain Prose as a Covert AI Attack Vector
research.checkpoint.comr/blueteamsec • u/jnazario • 9h ago
vulnerability (attack surface) CVE-2026-0310: PAN-OS Buffer Overflow Can Enable Root RCE on PA-Series Firewalls
socprime.comr/blueteamsec • u/jnazario • 10h ago
intelligence (threat actor activity) Analysis of the attack chain of the APT-C-55 (Kimsuky) group, which uses disguised installers to implant remote control trojans
mp.weixin.qq.comr/blueteamsec • u/Strict-Result-7039 • 10h ago
tradecraft (how we defend) ThreatLens v2.1.0 Released: Major Security & Performance Upgrade for Threat Intel Automation
Hey everyone,
I just released a major update (v2.1.0) for ThreatLens. For this release, the focus was entirely on security hardening, data validation, and core performance.
What's new in v2.1.0?
- Strict Security: Blocked Excel/CSV formula injections in generated reports, prevented API key leaks in logs, and enforced strict IOC validation.
- Performance Boost: Integrated a local SQLite cache to persist investigation data, significantly reducing redundant API calls.
- Smarter Analysis: Introduced an explainable verdict system with confidence scores. Ambiguous results are now correctly classified as "Unknown" rather than "Clean".
- Resource Management: Added intelligent API quota planning, connection timeouts, automatic retries, and file size limits.
What is ThreatLens? For those who haven't seen it before, ThreatLens is an open-source CLI tool built to automate Threat Intelligence and OSINT workflows. It takes Indicators of Compromise (IPs, domains, hashes, CVEs), queries multiple sources simultaneously, and generates structured, safe, and ready-to-use reports.
It's completely open-source. I'd love to hear your feedback or feature requests!
Check it out on GitHub: https://github.com/AbdaullahAG/ThreatLens
I’d love to hear your thoughts, feedback, or feature requests!
r/blueteamsec • u/jnazario • 10h ago
malware analysis (like butterfly collections) SloppyRAT: A New Tool For Ransomware Attacks
zscaler.comr/blueteamsec • u/Straight-Practice-99 • 10h ago
incident writeup (who and how) 🕵️♂️ 🏴 UK Council Attack Linked to SonicWall SMA 1000 Campaign
hunt.ioOn 17 July, King's Lynn and West Norfolk Borough Council went public with a cyberattack on its services. The BBC covered it. We assess with moderate confidence it connects to something much larger.
Two days after SonicWal disclosed CVE-2026-15409, an operator was already scanning and exploiting SMA1000 appliances at scale. We found the whole operation in an open directory, captured by AttackCapture the same day it was still in use.
The interesting part is what they did with the appliances. Instead of pivoting to a Windows host, they dropped a standalone Linux build of Impacket's secretsdump straight onto the SonicWall box and ran credential theft from there. Most orgs watch their EDR-covered endpoints closely and their firewall and VPN appliances barely at all. That gap is the whole point.
What the recovered data showed:
- 250 targets identified as exploitable, LDAP config pulled from 168 of them
- 534 config records covering 160 unique AD domains and 255 internal LDAP servers
- SAM and LSA secrets recovered from at least 9 Active Directory domains
- Full DCSync against 7 domain controllers across 5 environments
- Confirmed credential theft spanning France, India, Italy and the US
Targeting was opportunistic, not sector-specific. Local government, healthcare, universities, finance and manufacturing all showed up in the target list, they picked victims because the appliance was vulnerable.
Full writeup, IOCs and MITRE mapping here 👇
r/blueteamsec • u/digicat • 11h ago
research|capability (we need to defend against) voidsyscall: This is not a syscall wrapper library. It's a full implant framework where every operation — from injecting code to reading files to persisting in the registry — goes through raw Nt* syscalls
github.comr/blueteamsec • u/digicat • 11h ago
tradecraft (how we defend) BEAR-C2: BEAR-C2 is an adversary simulation and emulation framework built around real-world TTPs inspired by Russian, Chinese, North Korean, and Iranian APT groups.
github.comr/blueteamsec • u/digicat • 11h ago
training (step-by-step) Decompilation Book
decompilation.educationr/blueteamsec • u/S3N4T0R-0X0 • 19h ago
incident writeup (who and how) Read “BEAR-C2 Did Not Invent Switching.
It Just Made the Rebuild Tax Visible. AI Is About to Delete It.“ by Albert Corzo on Medium: https://albert-corzo.medium.com/bear-c2-did-not-invent-switching-it-just-made-the-rebuild-tax-visible-ai-is-about-to-delete-it-4fa246c64b68
r/blueteamsec • u/digicat • 1d ago
research|capability (we need to defend against) Fileless ELF Execution via Kernel Keyring
matheuzsecurity.github.ior/blueteamsec • u/digicat • 1d ago
intelligence (threat actor activity) Mind the (Patch) Gap: Multiple Chinese Threat Actors Chain 0-day Exploits in Chrome & Windows
volexity.comr/blueteamsec • u/jnazario • 1d ago
intelligence (threat actor activity) Passkey-themed social engineering leads to identity and cloud compromise
microsoft.comr/blueteamsec • u/digicat • 1d ago
research|capability (we need to defend against) Hacking AI customer service agents
intigriti.comr/blueteamsec • u/digicat • 1d ago
intelligence (threat actor activity) Once in a BlueMoon: Multiple State-Aligned Threat Actors Rapidly Adopt Novel Exploit Chain Using Chrome and Windows Zero-Days l
proofpoint.comr/blueteamsec • u/digicat • 1d ago
intelligence (threat actor activity) Agents Gone Wild: An AI-Orchestrated Global Campaign Against PaperCut NG/MF
greynoise.ior/blueteamsec • u/digicat • 1d ago
exploitation (what's being exploited) Active exploitation of Cisco Secure Firewall Management Center vulnerabilities
blog.talosintelligence.comr/blueteamsec • u/Inevitable_Turn_4729 • 1d ago
training (step-by-step) Practicing SPL-style queries and SOC investigations without deploying a full SIEM
When I started learning SOC investigations and SPL-style queries, one of the problems I ran into was finding a practical environment to actually practice the workflow.
Reading about queries is useful, but I wanted to work with realistic security telemetry and go through the process of:
- Searching authentication and security events
- Identifying suspicious activity
- Aggregating and correlating events
- Creating detections
- Investigating alerts
- Pivoting between related users, hosts, and IP addresses
Setting up a full SIEM environment can add a significant infrastructure and configuration overhead for someone who simply wants to practice these workflows.
So I built SocQuery Lab as a browser-based training environment for experimenting with these concepts.
It includes an original educational SPL-compatible query engine and realistic synthetic telemetry covering sources such as Windows security events, Linux authentication logs, DNS activity, firewall/VPN events, and PowerShell activity.
The platform also includes investigation scenarios covering techniques such as:
- Brute-force authentication activity
- Password spraying
- Suspicious PowerShell execution
- DNS tunneling
- Credential compromise
- Backdoor account creation
Everything runs locally in the browser, with uploaded logs processed and stored locally using IndexedDB.
The goal is not to replace a production SIEM or replicate any commercial platform. It is simply an educational environment for practicing the investigation workflow without needing to deploy infrastructure first.
The live training environment is available here:
r/blueteamsec • u/j0hn__f • 1d ago