Applied Cybernetics Group
Threat intel → detection pipeline
Friday, September 18, 2026
Data as of 13:09 UTC

Morning Brief — 2026-09-02

3 material breach disclosures, 10 emerging critical cves, 10 supply chain, 21 ransomware activity, 674 ioc volume, 20 active malware families, 2 multi-source iocs, 2 intel feeds, 12 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

Park Dental Partners, Inc. (PARK)

On August 28, 2026, Park Dental Partners, Inc. (“we” or the “Company”) identified unauthorized access to its computer network. The Company promptly initiated its incident response protocols, and engaged its external cybersecurity and forensic specialists. The Company is continuing to investigate the nature and scope of this incident, including the scope of any compromise of personal or protected h…

NovoCure Ltd (NVCR)

Forward-Looking StatementsIn addition to historical facts or statements of current condition, this press release may contain forward-looking statements. Forward-looking statements provide Novocure’s current expectations or forecasts of future events. These may include statements regarding anticipated scientific progress on its research programs, clinical study progress, development of potential pr…

Nutex Health Inc. (NUTX)

remediation of the incident. Readers are cautioned that these forward-looking statements are not guarantees of future events or outcomes and they should not be unduly relied on, as they are based on information available to the Company and on management’s current beliefs and expectations as of the date of this Current Report on Form 8-K and are therefore inherently uncertain and subject to risks,…

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

This issue affects KIO (Klemsan Internet Objects): bef…

Supply Chain

GHSA-vp52-pcj8-j9qc · CVE-2026-84304 (go)

gRPC-Go: Heap Memory Exhaustion (OOM) via HTTP/2 DATA Frame Fragmentation

GHSA-68jx-f42c-7599 · CVE-2026-19418 (composer)

TYPO3 CMS - Broken Access Control in Backend and Install Tool

GHSA-52xp-w8hr-xv3c · CVE-2026-77567 (composer)

Filament: Multi-factor authentication (app) can be bypassed when recovery codes are enabled

GHSA-m4rf-3fr8-xwx3 · CVE-2026-79675 (pip)

NLTK: JVM argument injection bypass via per-call options in the NLTK Stanford wrappers (incomplete fix of CVE-2026-12841)

GHSA-8rr7-cvq3-gmfh (composer)

league/commonmark: Denial of service via distinctly-named attributes in the Attributes extension

GHSA-6hwm-xvph-95vm · CVE-2026-78680 (pip)

NLTK: Uncontrolled search path when invoking the Graphviz ‘dot’ binary

GHSA-jjv6-8j6v-6j52 (composer)

league/commonmark: Denial of service in the SmartPunct and Attributes extensions

GHSA-f8fg-pg57-v4j8 (composer)

league/commonmark XSS: on* event-handler filter in AttributesExtension bypassed with a U+000C form feed

GHSA-j8pm-gj4c-rq4x (composer)

league/commonmark: Denial of service via crafted code fences, reference links, and emphasis delimiters

GHSA-xwg4-73v4-xw9w · CVE-2026-73086 (npm)

nanoid: Integer Overflow or Wraparound

Ransomware Activity

21 new victim postings across 15 groups.

GroupVictimsSample
akira3Congressional Iron Works, Flex1, BYK Construction
direwolf3Oportunidados, Honeycomb Programs Inc, PT Intraco Penta Tbk
thegentlemen3CareerSource Palm Beach County, Nutex Health, The Sole
Black X1iwin
Global Secret Group1Quality Resource Pvt
SilentRansomGroup1Holland & Knight
Wallstreet1Total Education Solutions
anubis1Marlborough Partners
aurora1Chip 1 Exchange
bravox1SCHMIDT
fulcrumsec1Manchester Airports Group
nightspire1Transportes Montejo S.A.S.
qilin1Grayson Rural Electric Cooperative
ransomhouse1REXT Holdings Co., Ltd.
rhysida1Szechenyi Programiroda Nonprofit Kf

IOC Volume

674 new IOCs in this window. By source:

SourceCount
urlhaus674

Recent OSINT Events

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

Active Malware Families

20 malware families active this week (0 corroborated across ≥2 sources), exercising 22 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)
Miraibotnet1,375T1110, T1498, T1499, T1584.005
ConnectWise ScreenConnect (abuse)rmm-abuse63T1219
ClickFixdelivery →24T1059.001, T1204
AgentTeslastealer22T1056.001, T1071, T1114, T1555
DDoSAgentddos14T1498, T1499
CoinMinerminer12T1496
PureLogsStealerstealer9T1005, T1071, T1555
AsyncRATrat6T1056.001, T1059.001, T1071, T1219
Formbookstealer6T1005, T1056.001, T1071, T1555
SilverFoxrat6T1059, T1071, T1219
AMOS (Atomic macOS Stealer)stealer5T1005, T1056.002, T1071, T1555.001
Stealcstealer5T1005, T1071, T1555
ClearFakedelivery →2T1059.001, T1189, T1204
GuLoaderloader →2T1027, T1071, T1105
NetSupport Manager (abuse)rmm-abuse2T1219
Phorpiexbotnet2T1071, T1486, T1566
Lummastealer1T1005, T1071, T1555
MassLoggerstealer1T1056.001, T1071, T1555
Remcosrat1T1056.001, T1071, T1113
Vidarstealer1T1005, T1071, T1555

Families marked ”→” are delivery/social-engineering clusters (ClickFix, ClearFake, GuLoader). 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

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

IOCTypeSourcesLast seen
cryptovectorhub1.loldomainmisp + urlhaus2026-09-02
hypercorevector4.loldomainmisp + urlhaus2026-09-02

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 (3,006 indicators total) — each available as CSV, MISP JSON, and STIX 2.1. Subscribe at https://thrunt.me/intel/manifest.json.

FeedSourceTypeCountDownloads
URLhaus — Malware Distribution URLsurlhausurl2,903CSV · MISP · STIX
URLhaus — Malware Distribution Domainsurlhausdomain103CSV · MISP · STIX

Hand-Authored Sigma

10 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
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
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
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 161 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 Medium04
T1497Virtualization/Sandbox Evasion04
T1573.001Symmetric Cryptography13
T156203
T1001Data Obfuscation02
T1499.002Service Exhaustion Flood02
T1530Data from Cloud Storage02
T1562.00102
T1003.008/etc/passwd and /etc/shadow01
T1070.00101

…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.