[ctx]ctxseccontext security: attacks on the harness and context layer of AI agents, plus exploited-now news, hunting and playbooks.

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hunt idea

Hunt: AhsayCBS / REDCap post-exploitation (webshell → miner)

Both campaigns end in web-server-spawned shells and miners. Look for the web service process spawning cmd/powershell/sh, new script files in web roots, and outbound connections to mining pools.
// KQL (Defender) sketch
DeviceProcessEvents
| where InitiatingProcessFileName in~ ("java.exe","w3wp.exe","httpd","php-fpm")
| where FileName in~ ("cmd.exe","powershell.exe","sh","bash")
| project Timestamp, DeviceName, InitiatingProcessFileName, ProcessCommandLine
Tune the parent list to your stack. Sketch only; validate before alerting.

Sources: Huntress · Unit 42 (via X)