Adversaries may check for Internet connectivity on compromised systems. This may be performed during automated discovery and can be accomplished in numerous ways such as using Ping, <code>tracert</code>, and GET requests to websites, or performing initial speed testing to confirm bandwidth. Adversaries may use the results and responses from these requests to determine if the system is capable of communicating with their C2 servers before attempting to connect to them. The results may also be used to identify routes, redirectors, and proxy servers.
Groups using this technique
| Group | Name | Country |
|---|---|---|
| grp_g1018 | TA2541 | — |
| grp_g1001 | HEXANE | — |
| grp_g0061 | FIN8 | — |
| grp_g1017 | Volt Typhoon | — |
| grp_g0010 | Turla | Russia |
| grp_g0047 | Gamaredon Group | Russia |
| grp_g0125 | HAFNIUM | — |
| grp_g0030 | Lotus Blossom | — |
| grp_g0059 | Magic Hound | Iran |
| grp_g1016 | FIN13 | — |
| grp_g0016 | APT29 | Russia |
Claims
No public claim points at this technique yet.
Auto-ingested and not human-reviewed; confidence and validity read by citation.