monitor anomalies in use of files that do not normally initiate connections for respective protocol(s)). Consider correlation with process monitoring and command line to detect anomalous processes execution and command line arguments associated to traffic patterns (e.g. Monitor and analyze traffic patterns and packet inspection associated to protocol(s), leveraging SSL/TLS inspection for encrypted traffic, that do not follow the expected protocol standards and traffic flows (e.g extraneous packets that do not belong to established flows, gratuitous or anomalous traffic patterns, anomalous syntax, or structure). Network intrusion detection and prevention systems that use network signatures to identify traffic for specific adversary malware can be used to mitigate activity at the network level. XAgentOSX contains the ftpUpload function to use the FTPManager:uploadFile method to upload files from the target system. SYSCON has the ability to use FTP in C2 communications. SilverTerrier uses FTP for C2 communications. ShadowPad has used FTP for C2 communications. PoetRAT has used FTP for C2 communications. ĭuring Operation Honeybee, the threat actors had the ability to use FTP for C2. NOKKI has used FTP for C2 communications. Mythic supports SMB-based peer-to-peer C2 profiles. Kimsuky has used FTP to download additional malware to the target machine. Kazuar uses FTP and FTPS to communicate with the C2 server. ĬARROTBALL has the ability to use FTP in C2 communications. Īttor has used FTP protocol for C2 communication. APT41 used exploit payloads that initiate download via ftp.
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