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China-nexus UAT-11587 targets Asian govts with Antino backdoor

A China-nexus APT deploys a novel Rust backdoor via Microsoft 365 C2, FBI seizes $17B in scam crackdown, and Apache MINA SSHD flaws enable auth bypass.

๐Ÿ•ต๏ธ RESEARCH & DEEP DIVES

  • China-nexus UAT-11587 targets Asian government and policy orgs with Antino backdoor
    Cisco Talos uncovered a China-nexus actor, UAT-11587, targeting government and policy organizations across Asia with a previously undocumented Rust backdoor called Antino.

    • Targets include government, defense, diplomatic, legislative, and civil society organizations in Taiwan, India, the Philippines, and Cambodia โ€” at least 16 institutional environments across eight countries and roughly 350 compromised endpoints by July 2026.
    • Antino is a Rust-compiled Windows backdoor supporting reconnaissance, shell and PowerShell execution, file transfer, in-memory shellcode loading, and persistence.
    • Its C2 channel operates exclusively through Microsoft 365, using Microsoft Graph to interact with Outlook and OneDrive as dead drops instead of a dedicated command server.
    • Delivery begins with spear-phishing emails and tailored decoy documents leading into a five-stage infection chain, relying heavily on Cloudflare infrastructure for staging and tracking.
    • Attribution to a China-nexus actor is based on Simplified Chinese decoy metadata, UTC+8 timestamps, use of the rsproxy.cn Rust mirror, and targeting aligned with Chinese intelligence interests.
    Sources ๐Ÿ“Ž Coverage: blog.talosintelligence.com ยท ๐Ÿ‘ via Cisco Talos
  • FBI's Operation Blackout Dismantles Overseas Scam Compounds, Seizes ~$17 Billion
    The FBI's Operation Blackout has disrupted overseas scam compounds targeting Americans, seizing roughly $17 billion and arresting hundreds.

    • Targets American consumers via cryptocurrency investment fraud, romance scams, and impersonation schemes run from industrial-scale compounds in Southeast Asia
    • Roughly $17 billion seized or restrained, hundreds of suspects arrested, and thousands of trafficked workers freed
    • 10,406 potential victims were warned pre-loss; 77% didn't know they were being scammed
    • Fraud chains typically begin with unsolicited messages or seemingly accidental contact
    • Operations expanding into central and sub-Saharan Africa signal network displacement
    Sources ๐Ÿ“Ž Coverage: cybersecuritynews.com ยท ๐Ÿ‘ via Cyber Security News, cryptika.com (discovered)
  • US-Focused CSuite Phishing Steals Microsoft 365 Sessions and Deploys RMM Tools
    ANY.RUN researchers traced a US-focused CSuite phishing campaign that steals Microsoft 365 sessions and deploys remote-access tools.

    • Targets organizations in technology, manufacturing, government, and consulting, with 51% of 351 sandbox submissions from the US and 18% from India.
    • Attacks start with business-themed lures impersonating Adobe, DocuSign, Zoom, Google Meet, Dropbox, and Microsoft 365.
    • One path delivers BAT/VBS droppers or installers that deploy legitimate RMM tools like ScreenConnect or Action1 for persistent remote access.
    • The other path uses credential-harvesting or device-code phishing to capture Microsoft 365 credentials and active sessions.
    • A recurring /m/js/utils.js path on CSuite lure pages serves as a pivot artifact for identifying related activity.
    Sources ๐Ÿ“Ž Coverage: thehackernews.com ยท ๐Ÿ‘ via The Hacker News
  • Sanctions force CAs to revoke TLS certs for Russian and Iranian entities
    US sanctions have led certificate authorities to revoke TLS certificates for government and critical-sector entities in Russia and Iran.

    • Affects government agencies, banks, and critical-sector organizations in US-sanctioned countries, mainly Russia and Iran.
    • GlobalSign mass-revoked TLS certs for Russian customers in June; Iranian banks switched to Chinese providers and Russian banks to a state-run CA to stay online.
    • The May US Treasury sanctions prohibit CAs from issuing certificates to governmental or restricted parties, though non-governmental users remain covered by exemptions.
    • Consumers using Western browsers and OSes often don't trust the replacement state-run CAs, causing trust issues for end users.
    Sources ๐Ÿ“Ž Coverage: news.risky.biz ยท ๐Ÿ‘ via @campuscodi@mastodon.social (+2)

๐Ÿ“‹ ADVISORIES

  • ๐Ÿ“„ Source for Bitget says $387.5M crypto heist began with zero-day exploits of third-party security appliances โ€” x.com

  • ๐Ÿ“„ Source for WordPress WPMobile.App plugin <= 11.83 exposes sensitive data via missing authorization (CVE-2026-96342) โ€” patchstack.com

๐Ÿ”“ CVEs & KEV

  • CVE-2026-77185 โ€” Apache Software Foundation Apache MINA SSHD โ€” CVSS 9.1 โ€” Authentication bypass in sshd-core in Apache MINA SSHD ve...

  • CVE-2026-94053 โ€” Apache Software Foundation Apache MINA SSHD โ€” CVSS 9.1 โ€” Apache MINA SSHD Pre-Auth LDAP Injection Enables Critical Bypass

  • CVE-2026-94052 โ€” Apache Software Foundation Apache MINA SSHD โ€” CVSS 9.1 โ€” Apache MINA SSHD LdapPasswordAuthenticator Bypass Enables Unauthenticated Access

  • CVE-2026-76992 โ€” CODESYS Development System 3 โ€” CVSS 8.7 โ€” Uncontrolled Memory Allocation in CODESYS Gateway ClientThe CODESYS Gateway C...

  • CVE-2026-103239 โ€” MISP โ€” CVSS 8.6 โ€” MISP Tag Collection Save Allows Privilege Escalation via Sibling Model Inject...

  • CVE-2026-10739 โ€” Cato Networks SDP Client โ€” CVSS 8.5 โ€” Cato Networks SDP Client for Windows is vulnerable to Local Privilege Escalat...

  • CVE-2026-62146 โ€” Red Hat OpenShift Container Platform 4 โ€” CVSS 7.8 โ€” Cri-o: cri-o: sandbox state poisoning via pod annotations may expose runtime ...

  • CVE-2026-103242 โ€” Red Hat Enterprise Linux 10 โ€” CVSS 7.1 โ€” Rpm: heap-based buffer overflow write in hex2binv() via a mistyped rpmtag_fil...

  • CVE-2026-10726 โ€” Cato Networks SDP Client โ€” CVSS 6.8 โ€” Cato Windows SDP Client arbitrary file disclosure due to improper TLS certifi...

  • CVE-2026-81862 โ€” Apache Software Foundation Apache Airflow Teradata provider โ€” CVSS 6.5 โ€” Apache Airflow Teradata provider: Teradata transfer operators embed cloud sto...

  • CVE-2026-86843 โ€” Apache Software Foundation Apache Airflow Teradata provider โ€” CVSS 6.3 โ€” Apache Airflow Teradata provider: SQL injection via unvalidated Dag Params in...

  • CVE-2026-81930 โ€” Apache Software Foundation Apache Airflow Snowflake provider โ€” CVSS 6.3 โ€” Apache Airflow Snowflake provider: Unvalidated account field redirects SQL AP...

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