Procedure examples

Ninja can proxy C2 communications including to and from internal agents without internet connectivity.

BRICKSTORM has leveraged SOCKS Proxy to pivot into victim networks in attempts to resemble legitimate administrative traffic.

Stuxnet installs an RPC server for P2P communications.

Gomir can start a reverse proxy to initiate connections to arbitrary endpoints in victim networks.

Mafalda can create a named pipe to listen for and send data to a named pipe-based C2 server.

InvisiMole can function as a proxy to create a server that relays communication between the client and C&C server, or between two clients.

Kazuar has used internal nodes on the compromised network for C2 communications.

FatDuke can used pipes to connect machines with restricted internet access to remote machines via other infected hosts.

MiniDuke can can use a named pipe to forward communications from one compromised machine with internet access to other compromised machines.

Pay2Key has designated machines in the compromised network to serve as reverse proxy pivot points to channel communications with C2.

GlassWorm has leveraged peer-to-peer software to facilitate communications within the victim network to include the software WebRTC. GlassWorm has also established a SOCKS proxy to interact with victim devices that also acted as a proxy node for follow-on behaviors.

Hikit supports peer connections.

Drovorub can use a port forwarding rule on its agent module to relay network traffic through the client module to a remote host on the same network.

HiddenFace can act as an internal HTTP proxy within the targeted environment.

Cobalt Strike can be configured to have commands relayed over a peer-to-peer network of infected hosts. This can be used to limit the number of egress points, or provide access to a host without direct internet access.

CHOPSTICK used a proxy server between victims and the C2 server.

The Winnti for Windows HTTP/S C2 mode can make use of a local proxy.

metaMain can create a named pipe to listen for and send data to a named pipe-based C2 server.

StarProxy has proxied traffic between infected devices and their C2 servers.

The "ZJ" variant of BACKSPACE allows "ZJ link" infections with Internet access to relay traffic from "ZJ listen" to a command server.

Sliver has a built-in SOCKS5 proxying capability allowing for Sliver clients to proxy network traffic through other clients within a victim network.

Mythic can leverage a peer-to-peer C2 profile between agents.

Duqu can be configured to have commands relayed over a peer-to-peer network of infected hosts if some of the hosts do not have Internet access.