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"_meta": {
"schema_version": "1.1",
"source_modules": [
"mamba-edge/src/features/v0_2_features.py",
"mamba-edge/src/processing/v0_2_behavior_builder.py",
"mamba-edge/src/core/v0_2_event_encoder.py"
],
"note": "Schema 1.1 reflects the 3a' encoder revisions (4 promoted categoricals — f_path_category / f_dst_ip_category / f_dst_port_category / f_object_category — plus hash right-sizing on f_proc_name_hash and f_proc_cwd_hash, cwd depth 2 -> 4) and the v0.2.1 deep-aliasing anonymizer (basename allowlist + custom_tool_NNN, salted-HMAC exec_ids). Integer-coded categorical/bucket columns map an integer to a label + semantic description. String-coded categorical columns (path_category, object_category, dst_ip_category, dst_port_category) map the string value directly. Hash columns list bucket count and the raw-parquet column the parser hashed."
},
"categorical_int_columns": {
"f_event_type": {
"0": {
"label": "process_exec",
"desc": "Process execution event (Tetragon process_exec)"
},
"1": {
"label": "process_exit",
"desc": "Process termination event"
},
"2": {
"label": "process_kprobe",
"desc": "Kernel-probe event hooked by Tetragon (file/net/cred/mem)"
},
"3": {
"label": "OOV",
"desc": "Unknown event type — should not appear; sentinel for parser drift"
}
},
"f_kprobe_function": {
"0": {
"label": "fd_install",
"desc": "File descriptor install (file open in the kernel)"
},
"1": {
"label": "security_mmap_file",
"desc": "LSM hook for mmap() of a file"
},
"2": {
"label": "commit_creds",
"desc": "Credential change (setuid/setgid/capset)"
},
"3": {
"label": "tcp_connect",
"desc": "Outbound TCP connect()"
},
"4": {
"label": "tcp_close",
"desc": "TCP socket close"
},
"5": {
"label": "udp_sendmsg",
"desc": "UDP send (port 53 = DNS resolves)"
},
"6": {
"label": "inet_csk_accept",
"desc": "Inbound TCP accept (server-side)"
},
"7": {
"label": "do_unlinkat",
"desc": "File unlink (delete)"
},
"8": {
"label": "chmod_common",
"desc": "File permission change"
},
"9": {
"label": "security_file_mprotect",
"desc": "LSM hook for mprotect() (memory permission change)"
},
"10": {
"label": "sys_ptrace",
"desc": "ptrace() syscall (process injection / debugger attach)"
},
"11": {
"label": "sys_process_vm_writev",
"desc": "process_vm_writev() (cross-process memory write)"
},
"12": {
"label": "NOT_KPROBE",
"desc": "Row is process_exec / process_exit, not a kprobe event"
},
"13": {
"label": "OOV",
"desc": "Kprobe function not in the v0.2 vocabulary"
}
},
"f_kprobe_policy": {
"0": {
"label": "file-monitor",
"desc": "Tracing policy for file-system kprobes"
},
"1": {
"label": "memory-monitor",
"desc": "Tracing policy for memory-related kprobes"
},
"2": {
"label": "privilege-monitor",
"desc": "Tracing policy for credential / privilege kprobes"
},
"3": {
"label": "network-monitor",
"desc": "Tracing policy for network kprobes"
},
"4": {
"label": "injection-monitor",
"desc": "Tracing policy for process-injection kprobes"
},
"5": {
"label": "attribute-monitor",
"desc": "Tracing policy for file-attribute kprobes"
},
"6": {
"label": "NONE",
"desc": "Row is not a kprobe (process_exec / process_exit)"
},
"7": {
"label": "OOV",
"desc": "Tracing policy not in the v0.2 vocabulary"
}
},
"f_kprobe_action": {
"0": {
"label": "KPROBE_ACTION_POST",
"desc": "Tetragon emitted the event without taking action"
},
"1": {
"label": "NONE",
"desc": "Row is not a kprobe"
},
"2": {
"label": "OOV",
"desc": "Action not seen in v0.2 (e.g. KILL/OVERRIDE in future Tetragon)"
}
},
"f_proc_uid_bucket": {
"0": {
"label": "ROOT",
"desc": "uid == 0 (container root)"
},
"1": {
"label": "RESEARCH_USER",
"desc": "uid == 1000 (primary research user in container)"
},
"2": {
"label": "SYSTEM_LOW",
"desc": "1 <= uid <= 99 (historical Unix system accounts)"
},
"3": {
"label": "DAEMON_HIGH",
"desc": "100 <= uid <= 999 (modern Linux service accounts)"
},
"4": {
"label": "OTHER",
"desc": "everything else (incl. uid >= 1001, nobody/65534)"
}
},
"f_dst_port_bucket": {
"0": {
"label": "NONE",
"desc": "row has no dst port (non-network event)"
},
"1": {
"label": "LOOPBACK",
"desc": "dport == 0 (Tetragon's loopback / unset sentinel)"
},
"2": {
"label": "SSH",
"desc": "dport == 22"
},
"3": {
"label": "DNS",
"desc": "dport == 53"
},
"4": {
"label": "WEB",
"desc": "dport in {80, 443, 8080, 8443}"
},
"5": {
"label": "PRIV",
"desc": "1 <= dport <= 1023 (reserved/privileged ports)"
},
"6": {
"label": "HIGH",
"desc": "dport >= 1024 (ephemeral / non-standard high ports)"
}
},
"f_args_length_bucket": {
"0": {
"label": "ZERO",
"desc": "no arguments"
},
"1": {
"label": "LT50",
"desc": "1 <= len(args) < 50 chars"
},
"2": {
"label": "RANGE_50_200",
"desc": "50 <= len(args) < 200 chars"
},
"3": {
"label": "RANGE_200_1K",
"desc": "200 <= len(args) < 1000 chars"
},
"4": {
"label": "RANGE_1K_5K",
"desc": "1000 <= len(args) < 5000 chars"
},
"5": {
"label": "GT5K",
"desc": "len(args) >= 5000 chars (suspect / oversize cmdlines)"
}
},
"f_cap_count_bucket": {
"0": {
"label": "ZERO",
"desc": "no Linux capabilities held"
},
"1": {
"label": "RANGE_1_2",
"desc": "1 or 2 capabilities"
},
"2": {
"label": "RANGE_3_5",
"desc": "3 to 5 capabilities"
},
"3": {
"label": "RANGE_6_15",
"desc": "6 to 15 capabilities"
},
"4": {
"label": "GE16",
"desc": "16 or more capabilities (essentially full root)"
}
},
"f_path_sens_cwd": {
"0": {
"label": "SENSITIVE_SYS",
"desc": "/etc/, /root/, /boot/, /usr/sbin/, /sbin/"
},
"1": {
"label": "STAGING",
"desc": "/tmp/, /var/tmp/, /dev/shm/"
},
"2": {
"label": "RUNTIME",
"desc": "/var/run/, /run/"
},
"3": {
"label": "USER_HOME",
"desc": "/home/, /Users/"
},
"4": {
"label": "PROC_SELF",
"desc": "/proc/self/ (own-process introspection)"
},
"5": {
"label": "VSCODE_DEV",
"desc": "developer-tooling paths: .vscode-server/, node_modules/, .git/"
},
"6": {
"label": "OTHER",
"desc": "anything else"
},
"7": {
"label": "NONE",
"desc": "row has no path (non-file event)"
}
},
"f_path_sens_binary": {
"0": {
"label": "SENSITIVE_SYS",
"desc": "/etc/, /root/, /boot/, /usr/sbin/, /sbin/"
},
"1": {
"label": "STAGING",
"desc": "/tmp/, /var/tmp/, /dev/shm/"
},
"2": {
"label": "RUNTIME",
"desc": "/var/run/, /run/"
},
"3": {
"label": "USER_HOME",
"desc": "/home/, /Users/"
},
"4": {
"label": "PROC_SELF",
"desc": "/proc/self/ (own-process introspection)"
},
"5": {
"label": "VSCODE_DEV",
"desc": "developer-tooling paths: .vscode-server/, node_modules/, .git/"
},
"6": {
"label": "OTHER",
"desc": "anything else"
},
"7": {
"label": "NONE",
"desc": "row has no path (non-file event)"
}
},
"f_path_sens_kp": {
"0": {
"label": "SENSITIVE_SYS",
"desc": "/etc/, /root/, /boot/, /usr/sbin/, /sbin/"
},
"1": {
"label": "STAGING",
"desc": "/tmp/, /var/tmp/, /dev/shm/"
},
"2": {
"label": "RUNTIME",
"desc": "/var/run/, /run/"
},
"3": {
"label": "USER_HOME",
"desc": "/home/, /Users/"
},
"4": {
"label": "PROC_SELF",
"desc": "/proc/self/ (own-process introspection)"
},
"5": {
"label": "VSCODE_DEV",
"desc": "developer-tooling paths: .vscode-server/, node_modules/, .git/"
},
"6": {
"label": "OTHER",
"desc": "anything else"
},
"7": {
"label": "NONE",
"desc": "row has no path (non-file event)"
}
},
"f_kp_fd_install_path_sensitivity": {
"0": {
"label": "SENSITIVE_SYS",
"desc": "/etc/, /root/, /boot/, /usr/sbin/, /sbin/"
},
"1": {
"label": "STAGING",
"desc": "/tmp/, /var/tmp/, /dev/shm/"
},
"2": {
"label": "RUNTIME",
"desc": "/var/run/, /run/"
},
"3": {
"label": "USER_HOME",
"desc": "/home/, /Users/"
},
"4": {
"label": "PROC_SELF",
"desc": "/proc/self/ (own-process introspection)"
},
"5": {
"label": "VSCODE_DEV",
"desc": "developer-tooling paths: .vscode-server/, node_modules/, .git/"
},
"6": {
"label": "OTHER",
"desc": "anything else"
},
"7": {
"label": "NONE",
"desc": "row has no path (non-file event)"
}
},
"f_kp_mmap_path_sensitivity": {
"0": {
"label": "SENSITIVE_SYS",
"desc": "/etc/, /root/, /boot/, /usr/sbin/, /sbin/"
},
"1": {
"label": "STAGING",
"desc": "/tmp/, /var/tmp/, /dev/shm/"
},
"2": {
"label": "RUNTIME",
"desc": "/var/run/, /run/"
},
"3": {
"label": "USER_HOME",
"desc": "/home/, /Users/"
},
"4": {
"label": "PROC_SELF",
"desc": "/proc/self/ (own-process introspection)"
},
"5": {
"label": "VSCODE_DEV",
"desc": "developer-tooling paths: .vscode-server/, node_modules/, .git/"
},
"6": {
"label": "OTHER",
"desc": "anything else"
},
"7": {
"label": "NONE",
"desc": "row has no path (non-file event)"
}
},
"f_cmdline_entropy": {
"0": {
"label": "NULL",
"desc": "row has no cmdline (non-exec event)"
},
"1": {
"label": "LOW",
"desc": "Shannon entropy < 2.0 (very repetitive / short)"
},
"2": {
"label": "MID_LOW",
"desc": "2.0 <= entropy < 3.5"
},
"3": {
"label": "MID",
"desc": "3.5 <= entropy < 4.5"
},
"4": {
"label": "MID_HIGH",
"desc": "4.5 <= entropy < 5.5"
},
"5": {
"label": "HIGH",
"desc": "entropy >= 5.5 (random-looking / encoded payloads)"
}
},
"f_cmdline_compress": {
"0": {
"label": "NULL",
"desc": "row has no cmdline"
},
"1": {
"label": "VERY_COMPRESSIBLE",
"desc": "ratio < 0.3"
},
"2": {
"label": "COMPRESSIBLE",
"desc": "0.3 <= ratio < 0.5"
},
"3": {
"label": "MODERATE",
"desc": "0.5 <= ratio < 0.7"
},
"4": {
"label": "WEAK",
"desc": "0.7 <= ratio < 0.9"
},
"5": {
"label": "INCOMPRESSIBLE",
"desc": "ratio >= 0.9 (random / pre-encrypted)"
}
},
"f_time_since_parent_exec": {
"0": {
"label": "NULL",
"desc": "no parent exec_time available"
},
"1": {
"label": "SUB_MS",
"desc": "< 1 ms since parent exec"
},
"2": {
"label": "MS",
"desc": "1 ms .. 1 s"
},
"3": {
"label": "SEC",
"desc": "1 s .. 1 min"
},
"4": {
"label": "MIN",
"desc": "1 min .. 1 h"
},
"5": {
"label": "HR",
"desc": ">= 1 h"
}
},
"f_kp_tcp_connect_sock_family": {
"0": {
"label": "AF_INET",
"desc": "IPv4"
},
"1": {
"label": "AF_INET6",
"desc": "IPv6"
},
"2": {
"label": "NONE",
"desc": "row is not a network event"
},
"3": {
"label": "OOV",
"desc": "Socket family outside {AF_INET, AF_INET6}"
}
},
"f_action_family": {
"0": {
"label": "PROC_EXEC",
"desc": "Process execution"
},
"1": {
"label": "PROC_EXIT",
"desc": "Process termination"
},
"2": {
"label": "NET_CONNECT",
"desc": "Outbound TCP connect()"
},
"3": {
"label": "NET_CLOSE",
"desc": "TCP socket close"
},
"4": {
"label": "NET_ACCEPT",
"desc": "Inbound TCP accept()"
},
"5": {
"label": "NET_SEND",
"desc": "UDP send (e.g. DNS at dport=53)"
},
"6": {
"label": "FILE_OPEN",
"desc": "File descriptor install (file open)"
},
"7": {
"label": "FILE_DELETE",
"desc": "File unlink"
},
"8": {
"label": "FILE_CHMOD",
"desc": "File permission change"
},
"9": {
"label": "PRIV_CHANGE",
"desc": "Credential change (setuid / setgid / capset)"
},
"10": {
"label": "PROC_INJECT_PTRACE",
"desc": "ptrace() — process injection / debugger"
},
"11": {
"label": "PROC_INJECT_VMWRITE",
"desc": "process_vm_writev() — cross-process memory write"
},
"12": {
"label": "MEM_MAP",
"desc": "mmap() of a file"
},
"13": {
"label": "MEM_PROTECT",
"desc": "mprotect() — memory permission change"
},
"14": {
"label": "OTHER",
"desc": "Catch-all (unknown kprobe in v0.2 corpus)"
}
},
"f_path_category": {
"0": {
"label": "VSCODE_DEV",
"desc": "developer-tooling paths (.vscode-server/, node_modules/, .git/)"
},
"1": {
"label": "SENSITIVE_SYS",
"desc": "/etc/, /root/, /boot/, /usr/sbin/, /sbin/"
},
"2": {
"label": "TEMP_STAGING",
"desc": "/tmp/, /var/tmp/, /dev/shm/"
},
"3": {
"label": "RUNTIME",
"desc": "/var/run/, /run/, /proc/"
},
"4": {
"label": "LIBRARY",
"desc": "/usr/lib/, /usr/lib32/, /usr/lib64/, /usr/local/lib/, /lib/, /lib32/, /lib64/ — NEW in 3a'"
},
"5": {
"label": "USR_BIN",
"desc": "/usr/bin/, /usr/local/bin/, /usr/local/sbin/ — NEW in 3a'"
},
"6": {
"label": "OPT",
"desc": "/opt/ — NEW in 3a'"
},
"7": {
"label": "USER_HOME",
"desc": "/home/, /Users/"
},
"8": {
"label": "PROC_SELF",
"desc": "/proc/self/"
},
"9": {
"label": "OTHER",
"desc": "anything else"
},
"10": {
"label": "NONE",
"desc": "row has no path"
}
},
"f_dst_ip_category": {
"0": {
"label": "LOOPBACK",
"desc": "127.0.0.0/8 or ::1"
},
"1": {
"label": "LINK_LOCAL",
"desc": "169.254.0.0/16 or fe80::/10"
},
"2": {
"label": "PRIVATE",
"desc": "RFC1918: 10/8, 172.16/12, 192.168/16"
},
"3": {
"label": "MULTICAST",
"desc": "224.0.0.0/4 or ff00::/8"
},
"4": {
"label": "PUBLIC",
"desc": "publicly-routable IP (anonymized at parser; only category survives)"
},
"5": {
"label": "NONE",
"desc": "row has no dst IP"
}
},
"f_dst_port_category": {
"0": {
"label": "DNS",
"desc": "dport == 53"
},
"1": {
"label": "WEB",
"desc": "dport in {80, 443, 8080, 8443}"
},
"2": {
"label": "SSH",
"desc": "dport == 22"
},
"3": {
"label": "WELL_KNOWN",
"desc": "1 <= dport < 1024 (other reserved/privileged ports)"
},
"4": {
"label": "REGISTERED",
"desc": "1024 <= dport < 49152"
},
"5": {
"label": "HIGH",
"desc": "dport >= 49152 (ephemeral)"
},
"6": {
"label": "NONE",
"desc": "row has no dst port (non-network event)"
}
},
"f_object_category": {
"0": {
"label": "PROCESS",
"desc": "process_exec / process_exit"
},
"1": {
"label": "FILE",
"desc": "file-system kprobe (open/delete/chmod)"
},
"2": {
"label": "NETWORK",
"desc": "TCP/UDP socket kprobe"
},
"3": {
"label": "MEMORY",
"desc": "mmap / mprotect"
},
"4": {
"label": "CREDENTIAL",
"desc": "commit_creds (setuid/setgid/capset)"
},
"5": {
"label": "INJECT",
"desc": "ptrace / process_vm_writev"
},
"6": {
"label": "OTHER",
"desc": "kprobe outside the v0.2 vocabulary"
},
"7": {
"label": "NONE",
"desc": "row has no event_type"
}
}
},
"categorical_string_columns": {
"path_category": {
"VSCODE_DEV": "developer-tooling paths (.vscode-server/, node_modules/, .git/)",
"SENSITIVE_SYS": "/etc/, /root/, /boot/, /usr/sbin/, /sbin/",
"TEMP_STAGING": "/tmp/, /var/tmp/, /dev/shm/",
"RUNTIME": "/var/run/, /run/, /proc/",
"LIBRARY": "/usr/lib/, /usr/lib32/, /usr/lib64/, /usr/local/lib/, /lib/, /lib32/, /lib64/ (new in 3a')",
"USR_BIN": "/usr/bin/, /usr/local/bin/, /usr/local/sbin/ (new in 3a')",
"OPT": "/opt/ (new in 3a')",
"USER_HOME": "/home/, /Users/",
"PROC_SELF": "/proc/self/",
"OTHER": "anything else",
"NONE": "row has no path"
},
"object_category": {
"PROCESS": "process_exec / process_exit",
"FILE": "file-system kprobe (open/delete/chmod)",
"NETWORK": "TCP/UDP socket kprobe",
"CREDENTIAL": "commit_creds (setuid/setgid/capset)",
"INJECT": "ptrace / process_vm_writev",
"MEMORY": "mmap / mprotect",
"OTHER": "kprobe outside the v0.2 vocabulary",
"NONE": "row has no event_type"
},
"dst_ip_category": {
"LOOPBACK": "127.0.0.0/8 or ::1",
"LINK_LOCAL": "169.254.0.0/16 or fe80::/10",
"PRIVATE": "RFC1918: 10/8, 172.16/12, 192.168/16",
"MULTICAST": "224.0.0.0/4 or ff00::/8",
"PUBLIC": "publicly-routable IP (anonymized at parser; only category survives)",
"NONE": "row has no dst IP"
},
"dst_port_category": {
"DNS": "dport == 53",
"WEB": "dport in {80, 443, 8080, 8443}",
"SSH": "dport == 22",
"WELL_KNOWN": "1 <= dport < 1024 (other reserved/privileged ports)",
"REGISTERED": "1024 <= dport < 49152",
"HIGH": "dport >= 49152 (ephemeral)",
"NONE": "row has no dst port (non-network event)"
}
},
"boolean_flag_columns": {
"f_is_procfs_walk": "1 if the parser flagged this process_exec as a procfs-walk synthetic event; tag-not-drop policy means these flow through with the flag preserved (1,250 train + 96 test events have value=1).",
"f_uid_eq_parent": "1 if the process and its parent share the same uid.",
"f_is_setuid_exec": "1 if the exec was a setuid (uid != parent uid AND was a process_exec).",
"f_kp_commit_creds_uid_change": "1 on commit_creds events where the uid changed.",
"f_kp_commit_creds_cap_change": "1 on commit_creds events where the capability set changed.",
"f_kp_udp_sendmsg_dport_eq_53": "1 on udp_sendmsg events with dport=53 (DNS)."
},
"numeric_columns": {
"f_kp_fd_install_fd_int32": "Raw fd integer from fd_install (int32).",
"f_kp_mmap_prot_uint": "mmap prot bitmask (uint32).",
"f_kp_mprotect_prot_uint": "mprotect prot bitmask (uint64).",
"delta_t_prev_ns": "Nanoseconds since the previous event for the same proc_exec_id (per-process keying landed in the 2026-04-29 rebuild; previously global, which produced 44,947 train + 1,643 test negative residuals — now zero).",
"process_age_ns": "Nanoseconds since the process started (event_time - proc_start_time)."
},
"bucketed_int_columns": {
"f_delta_t_log_bucket": "Half-decade bucket of log10(delta_t_prev_ns + 1).",
"f_process_age_log_bucket": "Half-decade bucket of log10(process_age_ns + 1).",
"f_lineage_depth": "Walked-ancestors depth at parser time (capped per Plan G)."
},
"hash_columns": [
{
"column": "f_proc_name_hash",
"buckets": 2048,
"source_in_raw": "proc_binary (basename)",
"desc": "Hash of the executable basename (e.g. 'bash', 'curl'). Bumped 1024 -> 2048 in 3a' (audit cell 43 showed 27.7% collision on the old size)."
},
{
"column": "f_parent_proc_hash",
"buckets": 1024,
"source_in_raw": "parent_binary (basename)",
"desc": "Hash of the parent process basename."
},
{
"column": "f_proc_cwd_hash",
"buckets": 4096,
"source_in_raw": "proc_cwd (sanitized at release; see anonymization log)",
"desc": "Hash of the first FOUR path components of proc_cwd. Capacity bumped 256 -> 4096 AND depth 2 -> 4 in 3a' (audit cell 43 showed 90.2% collision on the old depth-2 / 256-bucket sizing). Depth-4 captures per-project granularity."
},
{
"column": "f_lineage_bag_hash",
"buckets": 256,
"source_in_raw": "(composite — sorted set of lineage basenames)",
"desc": "Hash of the bag-of-ancestors basename set; order-invariant."
},
{
"column": "f_parent_child_pair_hash",
"buckets": 1024,
"source_in_raw": "(derived: parent_binary_basename + ' -> ' + proc_binary_basename)",
"desc": "Hash of the (parent_basename, child_basename) pair string."
},
{
"column": "f_root_ancestor_basename_hash",
"buckets": 1024,
"source_in_raw": "(derived: lineage walk to the process tree root)",
"desc": "Hash of the root-of-tree basename (typically systemd / sshd)."
},
{
"column": "f_process_tree_id_hash",
"buckets": 4096,
"source_in_raw": "(derived: stable hash of the root proc_exec_id)",
"desc": "Identifier for the process subtree this event belongs to."
}
],
"identifier_columns": {
"event_time": "RFC3339 nanosecond timestamp (timestamp[ns, tz=UTC]).",
"proc_exec_id": "Salted-HMAC pseudonym of the original Tetragon exec_id (format 'exec_<32hex>'). Equality joins are preserved — lineage walks still work — but the original 'host:ts:pid' payload is erased.",
"proc_pid": "OS process id at the time of the event (uint32). Container-internal."
},
"side_string_columns": {
"proc_binary_basename": "Basename of the executable. Aliased per the v0.2.1 anonymizer: allowlisted distro / dev-tool basenames pass through verbatim; everything else becomes 'custom_tool_NNN' (lex-sorted) or the fixed 'vscode_server_bin' alias for VSCode commit-hash binaries. See reproduction/alias_map.json.",
"parent_binary_basename": "Basename of the parent executable. Same alias map as proc_binary_basename.",
"proc_cwd_normalized": "Sanitized current working directory: '/home/<user>' -> '/home/_user_', '/mnt/projects/<X>' -> '/workspace/_project_', etc. See anonymization log for the full rule set.",
"root_ancestor_basename": "Basename of the process-tree root. Same alias map as the other basename columns.",
"process_tree_root_exec_id": "Salted-HMAC pseudonym of the original Tetragon exec_id of the process-tree root (format 'exec_<32hex>').",
"parent_child_pair": "Parent->child basename pair, re-composed from the aliased basenames after Step B of the anonymizer (component-first guarantee — aliased value flows through).",
"token": "Composite event identifier of shape '<action_family>:<basename>[:<category>...]'. Re-generated via the canonical format_token() from the aliased basenames + already-bucketed categories, so the original (unaliased) basename never re-enters the token."
}
}
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