Knowledge Base
Showing 24 of 362 guides. Use the numbered pages to browse the complete archive.
Server-side request forgery turns a server's network position into the attacker's. Why loopback-only services are the real target, and how to fix both ends of the chain.
A seven-step recovery process for a breached remote-access gateway: preserve evidence, isolate, re-image, rotate every secret including MFA seeds, and hunt downstream.
Edge gateways get exploited again and again for structural reasons. How to plan on four timescales so the next zero-day is a contained event instead of a domain-wide one.
Join keys, phantom fallbacks, and fail-open validation: how secrets nobody chose become authentication bypasses, and how to purge them from your stack.
A six-step process for investigating a system after an authentication bypass: exposure windows, identity inventory, audit logs, rotation order, and persistence checks.
Exploitation now begins days after a patch ships. How to tier systems, set 72-hour patch SLOs, pre-authorize emergency change, and plan for the patches you miss.
NTLM relay attacks don't crack passwords, they forward a legitimate authentication to a different service. Here is how the technique works and why it keeps breaking Windows environments.
Extended Protection for Authentication is the control that stops NTLM relay against Windows services. Here is what it does and how to turn it on across Exchange virtual directories.
On-premises Exchange keeps generating urgent, exploitable vulnerabilities. This is a strategic guide to deciding whether and how to retire it before the next one lands.
Reverse-tunnel implants turn a compromised endpoint into a proxy into your network while blending into normal web traffic. Here is how to detect them when signatures fail.
Paste-and-run attacks depend on standard users being able to execute arbitrary scripts. Here is a practical set of controls to lock down PowerShell, the Run dialog, and Windows Terminal.
ClickFix attacks convince users to run malicious commands themselves by disguising them as a human-verification step. Here is how the technique works and why it bypasses so many controls.
Signed URLs let a server grant temporary, tamper-proof access without a login session. Here is how the signature is built, verified, and how a missing key turns verification into a rubber stamp.
File-sync and file-sharing servers accumulate quietly and outlive their owners. Here is a practical process for finding the ones you expose to the internet before an attacker enumerates them for you.
Unsupported software does not fail on its retirement date. It keeps running, keeps holding data, and quietly becomes the easiest way into your network. Here is how to plan for it.
Vendors keep saying "restrict access to trusted IPs" when a zero-day drops. This is how to actually do it: edge, host, proxy, and VPN patterns, plus the workflows that break and how to keep them running.
A vendor says a flaw is exploited but has no IoC list yet. You can still hunt. Here is a method built on process lineage, log integrity, and behavioral baselines that works with zero curated indicators.
Print servers run as SYSTEM, hold directory credentials, and sit on every network. Here is why PaperCut-class software keeps landing in breach reports and what that means for exposure decisions.
A practical hardening pass for Gitea and similar self-hosted forges: close registration, shrink the service account's reach, isolate the container, and limit what a compromise can steal.
When a self-hosted service is exploited, a fast miner is the visible part. This checklist covers containment, persistence hunting, secret rotation, and the rebuild decision in the right order.
Git hooks are executable scripts that Git runs automatically. On a hosting server, that makes the hooks directory a code-execution primitive for anyone who can write to it.
Command injection keeps showing up in mail servers, VPN appliances, and monitoring agents. Here is the mechanism, why parsers are the usual culprit, and how to spot the pattern in your own stack.
A repeatable process for the three days after CISA adds a CVE to the KEV catalog: scope, prioritize, patch or mitigate, hunt, and document, in that order.
The Zimbra SNMP flaw only affected servers running an optional package. A planning guide for auditing what your mail infrastructure exposes and removing what is not earning its place.