September 27, 2026 · Applied Cybernetics Group
Morning Brief — September 27, 2026
⚠️ Stale feeds — the following feeds have not refreshed within the staleness window. Treat their sections in this brief as possibly incomplete.
ctid-attck— 96.7h since last success · HTTP 404 Not Found at https://center-for-threat-informed-defense.github.io/mappings-explorer/data/kev/attack-16.1/kev-07.28.2025/enterprise/kev-07.28.2025_attac
Morning Brief — 2026-09-27
1 exploit probability movers, 10 emerging critical cves, 3 ransomware activity, 852 ioc volume, 13 active malware families, 2 multi-source iocs, 2 intel feeds, 18 hand-authored sigma, 18 detection gaps, and 1 pipeline health. Sections with no signal are still rendered with an explicit “none in this window” note so absence is visible alongside presence.
Material Breach Disclosures
No new Item 1.05 8-K filings in this window.
Federal Patching Priority
No new KEV additions in this window.
Exploit Probability Movers
| CVE | Today | Prev | Δ | In KEV |
|---|---|---|---|---|
CVE-2024-51977 | 0.466 | 0.732 | ▼ 0.266 |
Emerging Critical CVEs
CVE-2026-100740· CRITICAL (9.9) · 2026-09-27 — A vulnerability was detected in D-Link DIR-895L A1_102b07. Impacted is the function tunnel_set_params of the file tunnel.c of the component L2TP Control Channel Parser. Performing a manipulation results in out-of-bounds…CVE-2026-100717· CRITICAL (9.9) · 2026-09-26 — froxlor is a server administration panel. In versions 2.3.10 and earlier, Validate::validateUrl rejects carriage return and line feed characters only in the path, query and fragment components returned by parse_url, and…CVE-2026-100716· CRITICAL (9.9) · 2026-09-26 — Froxlor is a server administration panel. In versions 2.3.10 and earlier, the customer data-export (DataDump) cron fails to validate intermediate path components of the export destination: Froxlor\FileDir::makeCorrectDir…CVE-2026-100706· CRITICAL (9.9) · 2026-09-26 — kyverno before 1.19.1 fails to properly validate URL-encoded path segments in Policy apiCall urlPath, allowing namespace tenants to bypass the per-namespace clamp and create objects in other namespaces as the admission-c…CVE-2026-100741· CRITICAL (9.8) · 2026-09-27 — Eval injection in the JScript event-script dispatcher in Progressive Robot Ltd’s hMailServer, versions 6.0.0 through 6.3.3 on Windows, allows a remote, unauthenticated attacker to run arbitrary JScript inside the hMailSe…CVE-2026-82901· CRITICAL (9.8) · 2026-09-26 — The Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to Arbitrary File Upload due to insufficient file type validation in the ‘uacf7_wpcf7_mail_components’ function in all versions up to, and including,…CVE-2026-85984· CRITICAL (9.8) · 2026-09-26 — The miniOrange OTP Login, Verification and SMS Notifications plugin for WordPress is vulnerable to Authentication Bypass via the mo_wp_login_intent parameter in all versions up to, and including, 5.5.5. This is due to a…CVE-2026-100715· CRITICAL (9.6) · 2026-09-26 — Froxlor through 2.3.10 is vulnerable to arbitrary file deletion via symlink following in the FTP data deletion cron task. Cron task 8 (deleteFtpData), queued when an FTP account is deleted, calls FileDir::makeCorrectDir(…CVE-2026-100714· CRITICAL (9.1) · 2026-09-26 — Froxlor before 2.3.12 does not restrict or escape the system.letsencryptchallengepath setting: unlike sibling settings hardened in GHSA-33mp, the field has no string_regexp or required_otp guard, and its value is concate…CVE-2026-100721· CRITICAL (9.0) · 2026-09-27 — vm2 before 3.12.2 contains an authorization bypass in the NodeVM external-module resolver. When an embedder configuresrequire.externalwith a custom resolver (andcontext: 'host'),LegacyResolver.customResolvein…
Supply Chain
No high/critical GHSA advisories in this window.
Ransomware Activity
3 new victim postings across 3 groups.
| Group | Victims | Sample |
|---|---|---|
Barracuda | 1 | International Chemical Co. |
BlackLocks | 1 | ARCA UNLIMITED Architects |
m3rx | 1 | cipher.systems |
IOC Volume
852 new IOCs in this window. By source:
| Source | Count |
|---|---|
urlhaus | 852 |
Recent OSINT Events
No curated MISP events in this window (bulk-IOC contributions tallied in IOC Volume).
Active Malware Families
13 malware families active this week (0 corroborated across ≥2 sources), exercising 17 ATT&CK techniques. Family is the unit, not the indicator: the raw IOCs are drill-down evidence below, not the signal.
| Family | Type | Corrob. | IOCs | Techniques (✗ = coverage gap) |
|---|---|---|---|---|
| Mirai | botnet | — | 2,815 | T1110, T1498, T1499, T1584.005 |
| ClickFix | delivery → | — | 28 | T1059.001, T1204 |
| AgentTesla | stealer | — | 19 | T1056.001, T1071, T1114, T1555 |
| ConnectWise ScreenConnect (abuse) | rmm-abuse | — | 13 | T1219 |
| CoinMiner | miner | — | 11 | T1496 |
| AMOS (Atomic macOS Stealer) | stealer | — | 9 | T1005, T1056.002, T1071, T1555.001 |
| MassLogger | stealer | — | 5 | T1056.001, T1071, T1555 |
| ClearFake | delivery → | — | 2 | T1059.001, T1189, T1204 |
| DDoSAgent | ddos | — | 2 | T1498, T1499 |
| Remcos | rat | — | 2 | T1056.001, T1071, T1113 |
| Formbook | stealer | — | 1 | T1005, T1056.001, T1071, T1555 |
| Lumma | stealer | — | 1 | T1005, T1071, T1555 |
| Stealc | stealer | — | 1 | T1005, T1071, T1555 |
Families marked ”→” are delivery/social-engineering clusters (ClickFix, ClearFake). 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.
| IOC | Type | Sources | Last seen |
|---|---|---|---|
amc-us.mprevive.com | domain | misp + urlhaus | 2026-09-27 |
webhook.site | domain | misp + urlhaus | 2026-09-27 |
MISP × KEV Correlation
No MISP events in this window referenced a CVE.
Cross-Reference
No recent SEC filings to cross-reference.
Intel Feeds
2 IOC feeds updated this run (4,468 indicators total) — each available as CSV, MISP JSON, and STIX 2.1. Subscribe at https://thrunt.me/intel/manifest.json.
| Feed | Source | Type | Count | Downloads |
|---|---|---|---|---|
| URLhaus — Malware Distribution URLs | urlhaus | url | 4,357 | CSV · MISP · STIX |
| URLhaus — Malware Distribution Domains | urlhaus | domain | 111 | CSV · 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.
| Rule | Status | YAML |
|---|---|---|
| T1037 Boot or Logon Initialization Scripts — Linux Init Script Modification | experimental | https://thrunt.me/sigma/t1037-linux-init-script-modification.yml |
| T1055 Process Injection — Rundll32 Spawning Explorer as an Injection Host | experimental | https://thrunt.me/sigma/t1055-rundll32-spawning-explorer-injection.yml |
| T1071.004 DNS-over-HTTPS Resolution from a Non-Browser Process | experimental | https://thrunt.me/sigma/t1071-004-doh-resolver-non-browser-c2.yml |
| T1098.004 Account Manipulation — SSH Authorized Keys File Modification | experimental | https://thrunt.me/sigma/t1098-004-ssh-authorized-keys-write.yml |
| T1098.005 Okta Verify Enrollment from a Hypervisor Guest | experimental | https://thrunt.me/sigma/t1098-005-hypervisor-mfa-device-enrollment.yml |
| T1102.001 Dead Drop Resolver — EtherHiding Payload Retrieval from BNB Smart Chain Testnet | experimental | https://thrunt.me/sigma/t1102-001-etherhiding-bsc-testnet-dead-drop.yml |
| T1195.002 Compromise Software Supply Chain — Malicious Google Tag Manager Container | experimental | https://thrunt.me/sigma/t1195-002-unapproved-gtm-container-injection.yml |
| T1204.004 Malicious Copy and Paste — ClickFix macOS Terminal Execution | experimental | https://thrunt.me/sigma/t1204-004-clickfix-macos-terminal-execution.yml |
| T1204.004 Malicious Copy and Paste — ClickFix Run Dialog Execution | experimental | https://thrunt.me/sigma/t1204-004-clickfix-run-dialog-execution.yml |
| T1557 Okta Authentication or MFA via a Remote-Desktop / Proxy / Tor Tunnel | experimental | https://thrunt.me/sigma/t1557-aitm-cross-asn-session-mfa.yml |
| T1557 Claims Kit First-Party Exfil — X-Enc Single-Letter C2 | experimental | https://thrunt.me/sigma/t1557-claims-kit-single-letter-c2-xenc.yml |
| T1557 Okta Verify SVG Asset Served by a Non-Okta Host | experimental | https://thrunt.me/sigma/t1557-non-okta-host-oktaverify-svg.yml |
| T1557 reCAPTCHA-Skinned Cloudflare Turnstile Gate | experimental | https://thrunt.me/sigma/t1557-recaptcha-skinned-turnstile-gate.yml |
| T1566.002 Spearphishing Link — Luxembourg Hospitality SMS Phishing Campaign | experimental | https://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 Path | experimental | https://thrunt.me/sigma/t1574-002-signed-javac-sideload-jli.yml |
| T1583.001 Resolution of a ShinyHunters .claims Impersonation Domain | experimental | https://thrunt.me/sigma/t1583-001-claims-registration-conjunction.yml |
| T1003.008 OS Credential Dumping — /etc/shadow and /etc/gshadow Access | draft | https://thrunt.meundefined |
| T1530 Data from Cloud Storage — Detection | draft | https://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/.
| Technique | Name | Active families | MISP | KEV |
|---|---|---|---|---|
T1011 | Exfiltration Over Other Network Medium | — | 0 | 4 |
T1497 | Virtualization/Sandbox Evasion | — | 0 | 4 |
T1573.001 | Symmetric Cryptography | — | 1 | 3 |
T1562 | — | — | 0 | 3 |
T1001 | Data Obfuscation | — | 0 | 2 |
T1499.002 | Service Exhaustion Flood | — | 0 | 2 |
T1530 | Data from Cloud Storage | — | 0 | 2 |
T1562.001 | — | — | 0 | 2 |
T1003.008 | /etc/passwd and /etc/shadow | — | 0 | 1 |
T1070.001 | — | — | 0 | 1 |
…and 8 more below the cut — full list on the rollup.
Pipeline Health
| Feed | Last success | Status |
|---|---|---|
ctid-attck | 2026-09-23 09:41:01 UTC | failing |
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.