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Threat Group Cards: A Threat Actor Encyclopedia

Permanent link Tool: SystemBC

TypeBackdoor, Tunneling
Description(Sophos) First seen in 2019, SystemBC is a proxy and remote administrative tool, named by researchers after the string in the URI its control panel used. It acts both as a network proxy for concealed communications and as a remote administration tool (RAT)—capable of executing Windows commands, and delivering and executing scripts, malicious executables and dynamic link libraries (DLLs). After being dropped by other malware, it provides attackers with a persistent backdoor.

While SystemBC has been around for over a year, we’ve seen both its use and its features continue to evolve. The most recent samples of SystemBC carry code that, instead of acting essentially as a virtual private network via a SOCKS5 proxy, uses the Tor anonymizing network to encrypt and conceal the destination of command and control traffic.

Last change to this tool card: 14 June 2021

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All groups using tool SystemBC


APT groups

 Sprite Spider, Gold Dupont[Unknown]2015-Aug 2021 HOT 

1 group listed (1 APT, 0 other, 0 unknown)

Thailand Computer Emergency Response Team (ThaiCERT)
Electronic Transactions Development Agency

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