Redtail Payload Analysis [Guest Diary], (Wed, Sep 9th)

This report analyzes an x86_64 RedTail Linux payload recovered from a DShield honeypot: the author executed the sample in an isolated Ubuntu VM, collected pre/post memory images and extensive telemetry, and observed consistent behaviors including detailed host profiling (CPU, cache, NUMA, DMI), process masquerading (changing visible names to php/postgres), termination of monitoring tools via SIGKILL, persistence via @reboot cron entries, dynamic high-port TCP listeners, attempted firewall modification, and repeated failed connection attempts to multiple external IPs on TCP/853 (consistent with DNS-over-TLS resolver initialization); accompanying setup.sh and clean.sh were statically analyzed but not executed during the dynamic runs.