GoldFinder
GoldFinder is a custom HTTP tracer tool written in Go that logs the route a packet takes between a compromised network and a C2 server. It can be used to inform threat actors of potential points of discovery or logging of their actions, including C2 related to other malware. GoldFinder was discovered in early 2021 during an investigation into the SolarWinds cyber intrusion by APT29.[1]
Techniques Used
| Domain | ID | Name | Use | |
|---|---|---|---|---|
| Enterprise | T1071 | .001 | Application Layer Protocol: Web Protocols |
GoldFinder has used HTTP for C2.[1] |
| Enterprise | T1119 | Automated Collection |
GoldFinder logged and stored information related to the route or hops a packet took from a compromised machine to a hardcoded C2 server, including the target C2 URL, HTTP response/status code, HTTP response headers and values, and data received from the C2 node.[1] |
|
| Enterprise | T1016 | .001 | System Network Configuration Discovery: Internet Connection Discovery |
GoldFinder performed HTTP GET requests to check internet connectivity and identify HTTP proxy servers and other redirectors that an HTTP request traveled through.[1] |
Groups That Use This Software
| ID | Name | References |
|---|---|---|
| G0016 | APT29 |