alert tcp-pkt $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE SockRacket/KANDYKORN CnC Response"; flow:established,to_client; flowbits:isset,ET.SockRacketClientChallenge; dsize:8; content:"|ea 44 2c 18 ea 44 2c|"; endswith; reference:url,elastic.co/security-labs/elastic-catches-dprk-passing-out-kandykorn; classtype:trojan-activity; sid:2049037; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_11_01, deployment Perimeter, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_01, reviewed_at 2023_11_01;)