Applied Cybernetics Group
Threat intel → detection pipeline
Monday, October 5, 2026
Data as of 09:42 UTC

Morning Brief — 2026-09-21

2 material breach disclosures, 10 emerging critical cves, 16 ransomware activity, 961 ioc volume, 12 active malware families, 3 multi-source iocs, 2 intel feeds, 18 hand-authored sigma, and 18 detection gaps. Sections with no signal are still rendered with an explicit “none in this window” note so absence is visible alongside presence.

Material Breach Disclosures

Nutex Health Inc. (NUTX)

Forward-Looking StatementsCertain statements and information included in this press release constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. When used in this press release, the words or phrases “will,” “will likely result,” “expected to,” “will continue,” “anticipated,” “estimate,” “projected,” “intend,” “goal,” or similar express…

BOSTON SCIENTIFIC CORP (BSX)

As previously disclosed in a Current Report on Form 8-K filed on August 26, 2026 with the Securities and Exchange Commission, on August 25, 2026, Boston Scientific Corporation (the “Company”) identified a cybersecurity incident that affected certain of its information technology systems and resulted in a global disruption to the Company’s operations. Upon detection, the Company activated its incid…

Federal Patching Priority

No new KEV additions in this window.

Exploit Probability Movers

No CVEs with ≥0.20 EPSS movement in this window.

Emerging Critical CVEs

Supply Chain

No high/critical GHSA advisories in this window.

Ransomware Activity

16 new victim postings across 9 groups.

GroupVictimsSample
qilin5IKEGAMI TSUSHINKI COMPANY LIMITED, Zorlu Holding, ShopDunk, KMLS, Touring Club S…
AuditTeam2TEK SPB, st***co
Orova2Siddhi Green Excellence Pvt. Ltd, Euramex Management Group
incransom2SECOND HOUSE, Maryann Kriger
dragonforce1arsrenacer.com
emperador1Alabama Woman’s Health Care
krybit1acilnet.com
lockbit51siinqeebank.com
threeam1newmantractor.com

IOC Volume

961 new IOCs in this window. By source:

SourceCount
urlhaus961

Recent OSINT Events

No curated MISP events in this window (bulk-IOC contributions tallied in IOC Volume).

Active Malware Families

12 malware families active this week (1 corroborated across ≥2 sources), exercising 16 ATT&CK techniques. Family is the unit, not the indicator: the raw IOCs are drill-down evidence below, not the signal.

FamilyTypeCorrob.IOCsTechniques (✗ = coverage gap)
AMOS (Atomic macOS Stealer)stealer✓19T1005, T1056.002, T1071, T1555.001
Miraibotnet—1,626T1110, T1498, T1499, T1584.005
ConnectWise ScreenConnect (abuse)rmm-abuse—46T1219
ClickFixdelivery →—23T1059.001, T1204
CoinMinerminer—12T1496
MassLoggerstealer—7T1056.001, T1071, T1555
AgentTeslastealer—6T1056.001, T1071, T1114, T1555
DDoSAgentddos—4T1498, T1499
SilverFoxrat—4T1059, T1071, T1219
ACRStealerstealer—3T1005, T1071, T1555
Formbookstealer—1T1005, T1056.001, T1071, T1555
Stealcstealer—1T1005, T1071, T1555

Families marked ”→” are delivery/social-engineering clusters (ClickFix). Their technique mappings are the delivery chain — downstream behavior is payload-dependent, so they don’t open a hard coverage gap on their own.

Multi-Source IOCs

3 IOCs flagged by 2+ independent sources this window — the highest-confidence signal the cross-feed corpus produces.

IOCTypeSourcesLast seen
implantdentistrytx.comdomainmisp + urlhaus2026-09-21
nova-client.comdomainmisp + urlhaus2026-09-21
odinclient.comdomainmisp + urlhaus2026-09-21

MISP × KEV Correlation

No MISP events in this window referenced a CVE.

Cross-Reference

No SEC × KEV vendor token matches in this window. (This is a heuristic surface, absence is expected most days.)

Intel Feeds

2 IOC feeds updated this run (3,771 indicators total) — each available as CSV, MISP JSON, and STIX 2.1. Subscribe at https://thrunt.me/intel/manifest.json.

FeedSourceTypeCountDownloads
URLhaus — Malware Distribution URLsurlhausurl3,636CSV · MISP · STIX
URLhaus — Malware Distribution Domainsurlhausdomain135CSV · MISP · STIX

Hand-Authored Sigma

16 production-ready TTP rules (+2 scaffolds in the authoring queue) live at https://thrunt.me/sigma/manifest.json. Subscribe via https://thrunt.me/sigma/rules.lock.json (content-hash churn) or pull all with https://thrunt.me/sigma/rules.tar.gz.

RuleStatusYAML
T1037 Boot or Logon Initialization Scripts — Linux Init Script Modificationexperimentalhttps://thrunt.me/sigma/t1037-linux-init-script-modification.yml
T1055 Process Injection — Rundll32 Spawning Explorer as an Injection Hostexperimentalhttps://thrunt.me/sigma/t1055-rundll32-spawning-explorer-injection.yml
T1071.004 DNS-over-HTTPS Resolution from a Non-Browser Processexperimentalhttps://thrunt.me/sigma/t1071-004-doh-resolver-non-browser-c2.yml
T1098.004 Account Manipulation — SSH Authorized Keys File Modificationexperimentalhttps://thrunt.me/sigma/t1098-004-ssh-authorized-keys-write.yml
T1098.005 Okta Verify Enrollment from a Hypervisor Guestexperimentalhttps://thrunt.me/sigma/t1098-005-hypervisor-mfa-device-enrollment.yml
T1102.001 Dead Drop Resolver — EtherHiding Payload Retrieval from BNB Smart Chain Testnetexperimentalhttps://thrunt.me/sigma/t1102-001-etherhiding-bsc-testnet-dead-drop.yml
T1195.002 Compromise Software Supply Chain — Malicious Google Tag Manager Containerexperimentalhttps://thrunt.me/sigma/t1195-002-unapproved-gtm-container-injection.yml
T1204.004 Malicious Copy and Paste — ClickFix macOS Terminal Executionexperimentalhttps://thrunt.me/sigma/t1204-004-clickfix-macos-terminal-execution.yml
T1204.004 Malicious Copy and Paste — ClickFix Run Dialog Executionexperimentalhttps://thrunt.me/sigma/t1204-004-clickfix-run-dialog-execution.yml
T1557 Okta Authentication or MFA via a Remote-Desktop / Proxy / Tor Tunnelexperimentalhttps://thrunt.me/sigma/t1557-aitm-cross-asn-session-mfa.yml
T1557 Claims Kit First-Party Exfil — X-Enc Single-Letter C2experimentalhttps://thrunt.me/sigma/t1557-claims-kit-single-letter-c2-xenc.yml
T1557 Okta Verify SVG Asset Served by a Non-Okta Hostexperimentalhttps://thrunt.me/sigma/t1557-non-okta-host-oktaverify-svg.yml
T1557 reCAPTCHA-Skinned Cloudflare Turnstile Gateexperimentalhttps://thrunt.me/sigma/t1557-recaptcha-skinned-turnstile-gate.yml
T1566.002 Spearphishing Link — Luxembourg Hospitality SMS Phishing Campaignexperimentalhttps://thrunt.me/sigma/t1566-002-luxembourg-hospitality-sms-phish.yml
T1574.002 DLL Side-Loading — Signed javac.exe Loading jli.dll from a User-Writable Pathexperimentalhttps://thrunt.me/sigma/t1574-002-signed-javac-sideload-jli.yml
T1583.001 Resolution of a ShinyHunters .claims Impersonation Domainexperimentalhttps://thrunt.me/sigma/t1583-001-claims-registration-conjunction.yml
T1003.008 OS Credential Dumping — /etc/shadow and /etc/gshadow Accessdrafthttps://thrunt.meundefined
T1530 Data from Cloud Storage — Detectiondrafthttps://thrunt.meundefined

Detection Gaps

18 of 160 techniques with corpus signal have zero detection coverage — no SigmaHQ community rule, no thrunt rule. This is the hand-authoring queue; the live view is at https://thrunt.me/corpus/attck/.

TechniqueNameActive familiesMISPKEV
T1011Exfiltration Over Other Network Medium—04
T1497Virtualization/Sandbox Evasion—04
T1573.001Symmetric Cryptography—13
T1562——03
T1001Data Obfuscation—02
T1499.002Service Exhaustion Flood—02
T1530Data from Cloud Storage—02
T1562.001——02
T1003.008/etc/passwd and /etc/shadow—01
T1070.001——01

…and 8 more below the cut — full list on the rollup.

Pipeline Health

All feeds healthy.


Sources: SEC EDGAR (public domain), CISA Known Exploited Vulnerabilities (public domain), FIRST.org EPSS (per ToS), NIST NVD (public domain), GitHub Security Advisories (per ToS), abuse.ch URLhaus (CC0, attribution), ransomware.live (per ToS), MITRE ATT&CK (CC BY 4.0).

Published by Applied Cybernetics Group via thrunt.me. Heuristic cross-references are labelled as such; verify before action.