DEFENDER TIMELINEReconstruct the sequence.
WHAT IS SOURCE / WHAT IS SIMULATIONTwo cases. Distinct evidence.
Proofpoint documented invoice lures using an archive or hosted download. Talos documented a separate Fajan spreadsheet route, including a NanoCore variant. These are separate case replays, not one combined historical incident.
The invoice preview is a static illustration, not a PDF exploit. Names, hosts, records, controls, and the interactive controller are fictional. Each original source figure is labeled in the gallery.
Proofpoint / December 2019 ↗
Cisco Talos / April 2021 ↗
HISTORY / RESEARCH SHELF
CASE FILE / NANOCORENanoCore
CISA included NanoCore in its advisory on prominent malware strains observed in 2021. An old name does not establish that a threat has disappeared.
Learning lens: track behavior and evidence rather than assuming age means irrelevance.
Read the CISA advisory ↗