Investigator Use
Shadowserver Foundation is a nonprofit security organization that provides threat intelligence, network monitoring, and incident notification services to network operators, government CERTs, and law enforcement agencies worldwide. Its dashboard at dashboard.shadowserver.org provides access to aggregated threat data including IP reputation, botnet C2 traffic, scanning activity, and vulnerability exposure information.
For OSINT investigators and threat intelligence analysts, Shadowserver provides a unique perspective based on its global network of sinkhole operations, honeypots, and scanning infrastructure. When a suspicious IP address surfaces during an investigation, Shadowserver's data can reveal whether it has been observed in botnet C2 communications, appears in passive DNS records, or has been flagged as a compromised host by Shadowserver's network.
The organization's daily network reports and feeds are particularly valuable for network defenders and incident responders — Shadowserver notifies network operators about compromised systems in their address space, open services that are commonly exploited, and misconfigured infrastructure visible to the internet.
For law enforcement and authorized investigators, Shadowserver's cooperative relationships with global law enforcement agencies provide access to data sets that support botnet takedowns, infrastructure attribution, and criminal network mapping. The organization has contributed data and analysis to numerous major law enforcement operations.
The dashboard provides lookup capabilities for IP addresses, ASNs, and domains — returning threat category data, historical malicious activity observations, and passive DNS records. This contextual data helps investigators rapidly assess whether observed infrastructure is part of known malicious campaigns.
For defenders, Shadowserver's sector-specific reports identify vulnerable services in specific industries, allowing CISOs and security teams to understand their exposure relative to peers. The free notification service alerts network administrators when Shadowserver detects compromised hosts or vulnerable services in their IP space.
Access to full Shadowserver data is available to vetted network operators, CERTs, and law enforcement — the public dashboard provides limited but useful lookup capabilities for individual investigators. Document all Shadowserver query results with timestamps and IP addresses queried.
Before You Pivot
Record Context
Capture the target, search terms, and why this source is relevant before you leave the page.
Preserve Evidence
Archive volatile pages, save screenshots, and keep timestamps for anything that may change.
Corroborate
Treat one tool as a lead source. Confirm important findings with independent sources.
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