GIPC (Geographical IP Correlation) is an open-source, lightweight Windows forensic utility used to extract and analyze geographical data from a list of IP addresses. Originally developed by security researcher JC-SoCal, GIPC functions primarily as a digital forensics and incident response tool rather than a standalone commercial service. It automates the process of batch-checking where IP addresses are physically located. How GIPC Works
GIPC operates by cross-referencing user-supplied IP addresses with external databases to resolve and correlate their geographical coordinates.
Input Data: The tool is compiled as a self-contained 32-bit executable (.exe). It requires two simple inputs: a text file containing the list of IP addresses to scan, and a targeting configuration (such as selecting which database or API to look up).
Database Resolution: When executed, GIPC reads each IP address and queries an IP geolocation provider database (such as MaxMind). These databases contain massive mapping registries maintained by Regional Internet Registries (RIRs like ARIN or RIPE) and Internet Service Providers (ISPs).
Data Correlation: GIPC pulls specific metadata associated with each IP. It correlates the address to its estimated country, region, city, postal code, and network operator (ISP).
Visual Output: Rather than leaving the investigator with raw text, GIPC formats the gathered coordinates into a structured schema (such as a KML file). This allows users to directly import the data into mapping software like Google Earth to visually track network pathways, attack origins, or patterns of suspicious logins. Primary Use Cases
Because GIPC streamlines batch IP lookups, it is predominantly used in cybersecurity and system administration for:
Incident Response: Pinpointing the geographic origins of brute-force attacks or unauthorized server access.
Log Analysis: Parsing web server or firewall logs to quickly filter out benign localized traffic from anomalous international connections.
Forensic Auditing: Generating map-ready visualizations for security reports to help stakeholders easily see where digital threats originate. JC-SoCal/GIPC: Geographical IP Correlation – GitHub
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