A Chinese advanced persistent threat (APT) known as Gallium has been observed using a previously undocumented remote access trojan in its espionage attacks targeting companies operating in Southeast Asia, Europe, and Africa.
Called PingPull, the "difficult-to-detect" backdoor is notable for its use of the Internet Control Message Protocol (ICMP) for command-and-control (C2) communications,
http://dlvr.it/SS6dsn
http://dlvr.it/SS6dsn