§ Archive
Month

July 2026

CM

Screening Serpens Hijacks AppDomainManager Ahead of Its RAT

Iran-nexus Screening Serpens paired AppDomainManager hijacking with DLL sideloading across its 2026 campaigns. A managed loader assembly runs before the host binary’s normal entry point and isn’t reliably represented in Sysmon ImageLoad telemetry, so the detection has to move to file-create events and .config content.

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Policies

The DPRK Worker’s Overseas IP Is in Your Connection Logs

Eight US-based ‘laptop farmers’ sentenced in five months, across cases spanning more than 100 US companies in one prosecution and nearly 70 in others: the North Korean IT worker is already on payroll, and what resolves it is correlating unauthorized remote-access tooling with the connection and endpoint telemetry it throws off — not the hiring interview, and not sign-in geography alone.

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CM

The pnpm Cache Poisoning Primitive GitHub Closed in June

The TanStack compromise published 84 poisoned npm versions across 42 packages by writing a cache entry into the default-branch scope from an untrusted fork PR. GitHub has since made that write path read-only for low-trust triggers — but cache creation still never touches the audit log, so post-hoc detection has to live on the runner and in cache-inventory differencing instead.

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CM

kvm_mmu_get_child_sp(), the Shadow-Page Reuse Check That Skipped role.word

CVE-2026-53359 is a 16-year-old use-after-free in KVM’s shadow MMU that lets a guest-root attacker on a vulnerable nested-virt KVM/x86 host crash the box or, with a separate withheld exploit, run as root on the hypervisor. The clearest detection is a kernel oops in journald; the real control is patching plus turning off nested virt you never used.

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AC

Passkey Enrollment: The Most Direct Signal Is the Registration Event

O-UNC-066 appears built to walk a victim through a fake passkey enrollment while the operator registers an attacker-controlled passkey in the real Entra tenant. It survives the password reset, and the most direct durable evidence is the authentication-method registration audit trail — written from a session your controls let through because the registration action was protected only by relayable MFA.

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Cyber Tools

Suspended Mid-Dump: The Race Condition Behind EDR-Freeze

EDR-Freeze abuses WerFaultSecure.exe — a Microsoft-signed WinTCB/PPL crash dumper — to suspend Defender and third-party EDR for as long as the operator holds it, with no kernel driver and almost no forensic residue. Here is what the detection actually looks like in Sysmon, why the filename-based Sigma rule everyone shipped first is a canary rather than a control, and which process-access relationship the real rule matches.

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CM

ClickFix Payloads Now Ship From an On-Demand API

A researcher pulled roughly 3,000 live ClickFix payloads and found the delivery running like a metered API — request 100, get 100 different builds. That breaks detection built on the pasted command, the encoded blob, or a string IOC. Here’s the content-blind detection that survives, and why the registry rule was never the durable part.

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AC

msDS-SupersededManagedAccountLink, the Target-Side Write That Forges a dMSA Migration

Microsoft’s August 2025 fix for BadSuccessor (CVE-2025-53779) works — but an attacker who controls a dMSA and can write a target’s migration-link attributes can forge the mutual pairing the KDC now demands and pull that account’s Kerberos key material out of the dMSA key package. The detection has to move from watching one attribute to watching the pairing on the target object.

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