Security researchers have recently identified several attack campaigns that use APT-like targeting techniques and deploy Brute Ratel C4 (BRc4), a relatively new adversary simulation framework. While hackers abusing penetration testing tools is not a new development — Cobalt Strike and Metasploit’s Meterpreter have been used by threat groups for years — Brute Ratel is focused on detection evasion techniques, so it might pose a real challenge to defense teams.
“The emergence of a new penetration testing and adversary emulation capability is significant,” researchers from security firm Palo Alto Networks said in a new report analyzing several recent samples. “Yet more alarming is the effectiveness of BRc4 at defeating modern defensive EDR and AV detection capabilities.”
To read this article in full, please click here
