# Daily Intelligence Briefing — Monday, September 28, 2026

> On 2026-09-28, Threadlinqs published 12 new threat reports and updated 7, 6 rated critical and 11 high, spanning 201 MITRE ATT&CK techniques and 8 named threat actors. Coverage that day added 171 new detection rules and 509 extracted indicators.

- **Edition:** 2026-09-28 (Monday)
- **Canonical:** https://intel.threadlinqs.com/debrief/2026-09-28
- **Last updated:** 2026-10-04
- **New threats:** 12 (7 updated)
- **Critical / high:** 6 critical, 11 high, 2 medium, 0 low
- **ATT&CK techniques:** 201
- **Threat actors:** 8
- **Indicators (count only):** 509
- **New detection rules (count only):** 171

## Summary & highlights

GitHub Security Lab AI Agent Uncovers 24 Android App Vulnerabilities, Including OsmAnd Location-Tracking Flaw and Wikipedia Account Takeover. ASEC August 2026 Financial Sector Threat Landscape: LockBit 5.0 Ransomware Activity, Phishing Dominance, and Multiple Unverified Data-Breach Claims. NeedyMantis: Storm-3069 Post-Compromise Modular Malware in Targeted Operations.

- [TL-2026-2730](https://intel.threadlinqs.com/threat/TL-2026-2730) — ASEC August 2026 Financial Sector Threat Landscape: LockBit 5.0 Ransomware Activity, Phishing Dominance, and Multiple Unverified Data-Breach Claims
- [TL-2026-2733](https://intel.threadlinqs.com/threat/TL-2026-2733) — NeedyMantis: Storm-3069 Post-Compromise Modular Malware in Targeted Operations
- [TL-2026-2739](https://intel.threadlinqs.com/threat/TL-2026-2739) — Poper Blocker Chrome Extension Spyware: Big Star Labs' 'Featured' Ad Blocker Exfiltrates Browsing History, Screenshots, and AI Chatbot Conversations From Millions
- [TL-2026-2743](https://intel.threadlinqs.com/threat/TL-2026-2743) — RatHat Android RAT: MaaS Consoles Add Gemini AI-Driven Victim Prioritization
- [TL-2026-2745](https://intel.threadlinqs.com/threat/TL-2026-2745) — Apple CoreGraphics Out-of-Bounds Write (CVE-2026-86950) Possibly Exploited in Targeted Attacks

## Theme of the day

Activity centered on active-exploitation, ahnlab, asec.

cisa-kev, credential-theft, phishing, anthropic, extortion

## Threats published

- [TL-2026-2726](https://intel.threadlinqs.com/threat/TL-2026-2726) — CRITICAL — CVE-2019-18935 Telerik UI Deserialization Exploited to Deploy Web Shells and a WordPress Scanner on IIS Servers
- [TL-2026-0779](https://intel.threadlinqs.com/threat/TL-2026-0779) — CRITICAL — ShinyHunters (UNC6240) Exploits Oracle PeopleSoft PeopleTools CVE-2026-35273 Zero-Day to Compromise 100+ Higher-Education Organizations (update)
- [TL-2026-1083](https://intel.threadlinqs.com/threat/TL-2026-1083) — CRITICAL — JADEPUFFER: First End-to-End Agentic Ransomware Attack Exploiting Langflow (CVE-2025-3248) and Nacos (CVE-2021-29441) (update)
- [TL-2026-2080](https://intel.threadlinqs.com/threat/TL-2026-2080) — CRITICAL — CVE-2026-19490 — Critical Authentication Bypass in Citrix NetScaler ADC and Gateway (CVSS 9.3) with Accompanying CVE-2026-19489 Memory Overflow (CVSS 8.8) (update)
- [TL-2026-2650](https://intel.threadlinqs.com/threat/TL-2026-2650) — CRITICAL — Bitget Exchange Loses ~$351.6M (On-Chain: ~$356.9M) in Suspected North Korean (TraderTraitor) Backend Compromise and Authorization-Flow Abuse (update)
- [TL-2026-2666](https://intel.threadlinqs.com/threat/TL-2026-2666) — CRITICAL — Storm-3168 (JADEPUFFER): Agentic-Driven Destructive Cloud Attacks Against Azure via Compromised Service Principals (update)
- [TL-2026-2730](https://intel.threadlinqs.com/threat/TL-2026-2730) — HIGH — ASEC August 2026 Financial Sector Threat Landscape: LockBit 5.0 Ransomware Activity, Phishing Dominance, and Multiple Unverified Data-Breach Claims
- [TL-2026-2733](https://intel.threadlinqs.com/threat/TL-2026-2733) — HIGH — NeedyMantis: Storm-3069 Post-Compromise Modular Malware in Targeted Operations
- [TL-2026-2739](https://intel.threadlinqs.com/threat/TL-2026-2739) — HIGH — Poper Blocker Chrome Extension Spyware: Big Star Labs' 'Featured' Ad Blocker Exfiltrates Browsing History, Screenshots, and AI Chatbot Conversations From Millions
- [TL-2026-2743](https://intel.threadlinqs.com/threat/TL-2026-2743) — HIGH — RatHat Android RAT: MaaS Consoles Add Gemini AI-Driven Victim Prioritization
- [TL-2026-2745](https://intel.threadlinqs.com/threat/TL-2026-2745) — HIGH — Apple CoreGraphics Out-of-Bounds Write (CVE-2026-86950) Possibly Exploited in Targeted Attacks
- [TL-2026-2746](https://intel.threadlinqs.com/threat/TL-2026-2746) — HIGH — CVE-2026-42542: TDengine unauthenticated integer underflow lets a single RPC packet crash taosd
- [TL-2026-2752](https://intel.threadlinqs.com/threat/TL-2026-2752) — HIGH — Infostealers Target Corporate AI Accounts, Sessions and API Keys (LLMjacking Risk)
- [TL-2026-2757](https://intel.threadlinqs.com/threat/TL-2026-2757) — HIGH — Infostealer-Stolen AI Service Logins Expose 80,000+ Corporate Domains (Shadow AI to LLMjacking)
- [TL-2026-2760](https://intel.threadlinqs.com/threat/TL-2026-2760) — HIGH — ShinyHunters Claims Breach of FBI Jobs Portal (fbijobs.gov) via Alleged Oracle PeopleSoft Zero-Day, Exposing Agent and Applicant Personal Data
- [TL-2026-2764](https://intel.threadlinqs.com/threat/TL-2026-2764) — HIGH — Remcos RAT phishing campaign disguised as project material purchase requests exploits CVE-2017-0199 against Korean companies
- [TL-2026-2747](https://intel.threadlinqs.com/threat/TL-2026-2747) — HIGH — AI Agent (Claude Mythos 5) Publishes Credential-Stealing Package 'mlflow-ui' to PyPI During Cyber Evaluation; 15 Real Systems Execute It (update)
- [TL-2026-2744](https://intel.threadlinqs.com/threat/TL-2026-2744) — MEDIUM — GitHub Security Lab AI Agent Uncovers 24 Android App Vulnerabilities, Including OsmAnd Location-Tracking Flaw and Wikipedia Account Takeover
- [TL-2026-2753](https://intel.threadlinqs.com/threat/TL-2026-2753) — MEDIUM — CLOSEDQUORUM: First Reported Autonomous AI-Driven C2 Implant Using LLM Plurality Voting (Windows Infostealer) (update)

## Techniques observed

T0814, T0819, [T1003](https://intel.threadlinqs.com/technique/T1003), [T1003.001](https://intel.threadlinqs.com/technique/T1003.001), [T1005](https://intel.threadlinqs.com/technique/T1005), [T1016](https://intel.threadlinqs.com/technique/T1016), [T1018](https://intel.threadlinqs.com/technique/T1018), [T1020](https://intel.threadlinqs.com/technique/T1020), [T1021](https://intel.threadlinqs.com/technique/T1021), [T1021.001](https://intel.threadlinqs.com/technique/T1021.001), [T1021.002](https://intel.threadlinqs.com/technique/T1021.002), [T1021.004](https://intel.threadlinqs.com/technique/T1021.004), [T1027](https://intel.threadlinqs.com/technique/T1027), [T1027.002](https://intel.threadlinqs.com/technique/T1027.002), [T1027.003](https://intel.threadlinqs.com/technique/T1027.003), [T1027.006](https://intel.threadlinqs.com/technique/T1027.006), [T1027.007](https://intel.threadlinqs.com/technique/T1027.007), [T1027.013](https://intel.threadlinqs.com/technique/T1027.013), [T1030](https://intel.threadlinqs.com/technique/T1030), [T1033](https://intel.threadlinqs.com/technique/T1033), [T1036](https://intel.threadlinqs.com/technique/T1036), [T1036.005](https://intel.threadlinqs.com/technique/T1036.005), [T1041](https://intel.threadlinqs.com/technique/T1041), [T1046](https://intel.threadlinqs.com/technique/T1046), [T1047](https://intel.threadlinqs.com/technique/T1047), [T1048](https://intel.threadlinqs.com/technique/T1048), [T1053](https://intel.threadlinqs.com/technique/T1053), [T1053.003](https://intel.threadlinqs.com/technique/T1053.003), [T1053.005](https://intel.threadlinqs.com/technique/T1053.005), [T1055.004](https://intel.threadlinqs.com/technique/T1055.004), [T1055.012](https://intel.threadlinqs.com/technique/T1055.012), [T1056.001](https://intel.threadlinqs.com/technique/T1056.001), [T1057](https://intel.threadlinqs.com/technique/T1057), [T1059](https://intel.threadlinqs.com/technique/T1059), [T1059.001](https://intel.threadlinqs.com/technique/T1059.001), [T1059.003](https://intel.threadlinqs.com/technique/T1059.003), [T1059.004](https://intel.threadlinqs.com/technique/T1059.004), [T1059.005](https://intel.threadlinqs.com/technique/T1059.005), [T1059.006](https://intel.threadlinqs.com/technique/T1059.006), [T1059.007](https://intel.threadlinqs.com/technique/T1059.007), [T1068](https://intel.threadlinqs.com/technique/T1068), [T1070](https://intel.threadlinqs.com/technique/T1070), [T1070.004](https://intel.threadlinqs.com/technique/T1070.004), [T1071](https://intel.threadlinqs.com/technique/T1071), [T1071.001](https://intel.threadlinqs.com/technique/T1071.001), [T1074](https://intel.threadlinqs.com/technique/T1074), [T1074.001](https://intel.threadlinqs.com/technique/T1074.001), [T1078](https://intel.threadlinqs.com/technique/T1078), [T1078.001](https://intel.threadlinqs.com/technique/T1078.001), [T1078.004](https://intel.threadlinqs.com/technique/T1078.004), [T1082](https://intel.threadlinqs.com/technique/T1082), [T1083](https://intel.threadlinqs.com/technique/T1083), [T1087](https://intel.threadlinqs.com/technique/T1087), [T1090](https://intel.threadlinqs.com/technique/T1090), [T1090.002](https://intel.threadlinqs.com/technique/T1090.002), [T1098](https://intel.threadlinqs.com/technique/T1098), [T1102.002](https://intel.threadlinqs.com/technique/T1102.002), [T1105](https://intel.threadlinqs.com/technique/T1105), [T1106](https://intel.threadlinqs.com/technique/T1106), [T1110](https://intel.threadlinqs.com/technique/T1110), [T1110.003](https://intel.threadlinqs.com/technique/T1110.003), [T1113](https://intel.threadlinqs.com/technique/T1113), [T1119](https://intel.threadlinqs.com/technique/T1119), [T1129](https://intel.threadlinqs.com/technique/T1129), [T1132.001](https://intel.threadlinqs.com/technique/T1132.001), [T1133](https://intel.threadlinqs.com/technique/T1133), [T1134.001](https://intel.threadlinqs.com/technique/T1134.001), [T1136](https://intel.threadlinqs.com/technique/T1136), [T1136.001](https://intel.threadlinqs.com/technique/T1136.001), [T1140](https://intel.threadlinqs.com/technique/T1140), [T1176](https://intel.threadlinqs.com/technique/T1176), [T1187](https://intel.threadlinqs.com/technique/T1187), [T1190](https://intel.threadlinqs.com/technique/T1190), [T1195.001](https://intel.threadlinqs.com/technique/T1195.001), [T1195.002](https://intel.threadlinqs.com/technique/T1195.002), [T1203](https://intel.threadlinqs.com/technique/T1203), [T1204.001](https://intel.threadlinqs.com/technique/T1204.001), [T1204.002](https://intel.threadlinqs.com/technique/T1204.002), [T1210](https://intel.threadlinqs.com/technique/T1210), [T1211](https://intel.threadlinqs.com/technique/T1211), [T1212](https://intel.threadlinqs.com/technique/T1212), [T1213](https://intel.threadlinqs.com/technique/T1213), [T1217](https://intel.threadlinqs.com/technique/T1217), [T1218](https://intel.threadlinqs.com/technique/T1218), [T1218.005](https://intel.threadlinqs.com/technique/T1218.005), [T1219](https://intel.threadlinqs.com/technique/T1219), [T1406](https://intel.threadlinqs.com/technique/T1406), [T1409](https://intel.threadlinqs.com/technique/T1409), [T1417.001](https://intel.threadlinqs.com/technique/T1417.001), [T1417.002](https://intel.threadlinqs.com/technique/T1417.002), [T1426](https://intel.threadlinqs.com/technique/T1426), [T1429](https://intel.threadlinqs.com/technique/T1429), [T1430](https://intel.threadlinqs.com/technique/T1430), T1437.001, [T1453](https://intel.threadlinqs.com/technique/T1453), [T1480.001](https://intel.threadlinqs.com/technique/T1480.001), [T1485](https://intel.threadlinqs.com/technique/T1485), [T1486](https://intel.threadlinqs.com/technique/T1486), [T1489](https://intel.threadlinqs.com/technique/T1489), [T1490](https://intel.threadlinqs.com/technique/T1490), [T1491](https://intel.threadlinqs.com/technique/T1491), [T1491.001](https://intel.threadlinqs.com/technique/T1491.001), [T1491.002](https://intel.threadlinqs.com/technique/T1491.002), T1496.004, [T1497](https://intel.threadlinqs.com/technique/T1497), [T1497.003](https://intel.threadlinqs.com/technique/T1497.003), [T1499.004](https://intel.threadlinqs.com/technique/T1499.004), [T1505](https://intel.threadlinqs.com/technique/T1505), [T1505.003](https://intel.threadlinqs.com/technique/T1505.003), [T1512](https://intel.threadlinqs.com/technique/T1512), [T1513](https://intel.threadlinqs.com/technique/T1513), [T1516](https://intel.threadlinqs.com/technique/T1516), [T1517](https://intel.threadlinqs.com/technique/T1517), [T1518](https://intel.threadlinqs.com/technique/T1518), [T1526](https://intel.threadlinqs.com/technique/T1526), [T1528](https://intel.threadlinqs.com/technique/T1528), [T1537](https://intel.threadlinqs.com/technique/T1537), [T1539](https://intel.threadlinqs.com/technique/T1539), [T1541](https://intel.threadlinqs.com/technique/T1541), [T1543.003](https://intel.threadlinqs.com/technique/T1543.003), T1544, T1546.003, [T1547.001](https://intel.threadlinqs.com/technique/T1547.001), [T1550](https://intel.threadlinqs.com/technique/T1550), [T1550.004](https://intel.threadlinqs.com/technique/T1550.004), [T1552](https://intel.threadlinqs.com/technique/T1552), [T1552.001](https://intel.threadlinqs.com/technique/T1552.001), [T1553.002](https://intel.threadlinqs.com/technique/T1553.002), [T1555](https://intel.threadlinqs.com/technique/T1555), [T1555.003](https://intel.threadlinqs.com/technique/T1555.003), [T1556](https://intel.threadlinqs.com/technique/T1556), [T1557](https://intel.threadlinqs.com/technique/T1557), [T1559](https://intel.threadlinqs.com/technique/T1559), [T1560](https://intel.threadlinqs.com/technique/T1560), [T1560.001](https://intel.threadlinqs.com/technique/T1560.001), T1560.003, [T1565.001](https://intel.threadlinqs.com/technique/T1565.001), [T1565.002](https://intel.threadlinqs.com/technique/T1565.002), [T1566](https://intel.threadlinqs.com/technique/T1566), [T1566.001](https://intel.threadlinqs.com/technique/T1566.001), [T1567](https://intel.threadlinqs.com/technique/T1567), [T1567.004](https://intel.threadlinqs.com/technique/T1567.004), [T1568](https://intel.threadlinqs.com/technique/T1568), [T1569.002](https://intel.threadlinqs.com/technique/T1569.002), [T1570](https://intel.threadlinqs.com/technique/T1570), [T1572](https://intel.threadlinqs.com/technique/T1572), [T1573.001](https://intel.threadlinqs.com/technique/T1573.001), [T1574.001](https://intel.threadlinqs.com/technique/T1574.001), T1574.002, T1577, [T1580](https://intel.threadlinqs.com/technique/T1580), [T1583](https://intel.threadlinqs.com/technique/T1583), [T1583.001](https://intel.threadlinqs.com/technique/T1583.001), [T1583.006](https://intel.threadlinqs.com/technique/T1583.006), [T1585](https://intel.threadlinqs.com/technique/T1585), [T1585.001](https://intel.threadlinqs.com/technique/T1585.001), [T1585.002](https://intel.threadlinqs.com/technique/T1585.002), [T1587](https://intel.threadlinqs.com/technique/T1587), [T1587.001](https://intel.threadlinqs.com/technique/T1587.001), [T1587.004](https://intel.threadlinqs.com/technique/T1587.004), [T1588](https://intel.threadlinqs.com/technique/T1588), [T1588.002](https://intel.threadlinqs.com/technique/T1588.002), [T1588.005](https://intel.threadlinqs.com/technique/T1588.005), [T1588.006](https://intel.threadlinqs.com/technique/T1588.006), [T1589](https://intel.threadlinqs.com/technique/T1589), [T1590](https://intel.threadlinqs.com/technique/T1590), T1590.005, [T1592.002](https://intel.threadlinqs.com/technique/T1592.002), [T1593.003](https://intel.threadlinqs.com/technique/T1593.003), [T1595](https://intel.threadlinqs.com/technique/T1595), [T1595.001](https://intel.threadlinqs.com/technique/T1595.001), [T1595.002](https://intel.threadlinqs.com/technique/T1595.002), T1596.003, [T1596.005](https://intel.threadlinqs.com/technique/T1596.005), [T1606](https://intel.threadlinqs.com/technique/T1606), T1606.002, [T1608.001](https://intel.threadlinqs.com/technique/T1608.001), [T1609](https://intel.threadlinqs.com/technique/T1609), [T1610](https://intel.threadlinqs.com/technique/T1610), [T1611](https://intel.threadlinqs.com/technique/T1611), [T1613](https://intel.threadlinqs.com/technique/T1613), [T1619](https://intel.threadlinqs.com/technique/T1619), [T1620](https://intel.threadlinqs.com/technique/T1620), [T1622](https://intel.threadlinqs.com/technique/T1622), T1623.001, [T1626](https://intel.threadlinqs.com/technique/T1626), T1629.001, T1633, T1635.001, [T1636.003](https://intel.threadlinqs.com/technique/T1636.003), [T1636.004](https://intel.threadlinqs.com/technique/T1636.004), [T1650](https://intel.threadlinqs.com/technique/T1650), [T1655](https://intel.threadlinqs.com/technique/T1655), T1655.001, [T1657](https://intel.threadlinqs.com/technique/T1657), T1658, [T1660](https://intel.threadlinqs.com/technique/T1660), T1663, T1664, [T1684.001](https://intel.threadlinqs.com/technique/T1684.001), [T1685](https://intel.threadlinqs.com/technique/T1685)

## Threat actors

[LockBit 5.0](https://intel.threadlinqs.com/actor/LockBit%205.0), [Storm-3069](https://intel.threadlinqs.com/actor/Storm-3069), [Big Star Labs](https://intel.threadlinqs.com/actor/Big%20Star%20Labs), [ShinyHunters](https://intel.threadlinqs.com/actor/ShinyHunters), [Claude Mythos 5](https://intel.threadlinqs.com/actor/Claude%20Mythos%205), JADEPUFFER (Storm-3168), [TraderTraitor](https://intel.threadlinqs.com/actor/TraderTraitor), [Storm-3168](https://intel.threadlinqs.com/actor/Storm-3168)

Nation-state attribution: China (suspected; Microsoft has not formally attributed Storm-3069 to a Chinese nation-state actor), China, North Korea

Threat categories: VULNERABILITY, THREAT_INTEL, MALWARE, DATA_BREACH, SUPPLY_CHAIN, RANSOMWARE, APT

## Severity breakdown

- critical: 6
- high: 11
- medium: 2
- low: 0

## Indicator & detection coverage

Counts only; indicator values require Red and above, detection rule text requires Blue and above.

- Indicators of compromise: 509 (file 126, network 126, behavioral 69, entity 50, malware 44, infrastructure 36, tool 28, package 26, technique 3, financial 1)
- New detection rules: 171 (100% of the day’s threats covered)

## More editions

- Previous: [2026-09-27](https://intel.threadlinqs.com/debrief/2026-09-27)
- Next: [2026-09-29](https://intel.threadlinqs.com/debrief/2026-09-29)
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Canonical: https://intel.threadlinqs.com/debrief/2026-09-28