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MITRE ATT&CK Tags

Sigma rules can carry a tags field that classifies a detection against the MITRE ATT&CK® framework (tactics, techniques and groups) as well as other taxonomies. Because tags is a list, the aws-ct-timeline and azure-timeline commands render it in a single Tags column, joining the entries with ¦ (the same separator Hayabusa uses) and abbreviating each entry so the column stays compact.

Example

A rule tagged like this:

tags:
    - attack.g0035
    - attack.credential-access
    - attack.discovery
    - attack.t1110
    - attack.t1087

is rendered in the Tags column as:

G0035 ¦ CredAccess ¦ Disc ¦ T1110 ¦ T1087

In JSON/JSONL output the value is kept as the same flat string (it is not expanded into an array), so the column is identical across CSV, JSON and the terminal.

How each tag is abbreviated

Tag type Example input Output Rule
Tactic attack.credential-access CredAccess Looked up in config/mitre_tactics.txt (see below)
Technique attack.t1562.001 T1562.001 The attack.t prefix becomes an upper-case T; the technique/sub-technique number is kept as-is
Group attack.g0035 G0035 The attack.g prefix becomes an upper-case G; the group number is kept as-is
Anything else cve.2021.1234 cve.2021.1234 Left unchanged

Tags are matched case-insensitively, and the hyphen and underscore spellings are treated the same, so attack.credential-access and attack.credential_access both become CredAccess.

The tactic abbreviation table

Tactic abbreviations are not hard-coded — they are read at runtime from config/mitre_tactics.txt, the same table Hayabusa uses. Each line is a simple <full tag>,<abbreviation> pair, so you can edit or extend the abbreviations without rebuilding Suzaku:

Full tag Abbreviation
attack.reconnaissance Recon
attack.resource-development ResDev
attack.initial-access InitAccess
attack.execution Exec
attack.persistence Persis
attack.privilege-escalation PrivEsc
attack.stealth Stealth
attack.defense-evasion Stealth
attack.defense-impairment DefImpair
attack.credential-access CredAccess
attack.discovery Disc
attack.lateral-movement LatMov
attack.collection Collect
attack.command-and-control C2
attack.exfiltration Exfil
attack.impact Impact

Note: If config/mitre_tactics.txt is missing, tactic tags are passed through unchanged; technique and group abbreviations still work.

A note on "Stealth" vs "Defense Evasion"

As of MITRE ATT&CK v19 (April 2026), the Defense Evasion tactic (TA0005) was renamed to Stealth, and a separate Impair Defenses tactic (TA0112) was split out from it. Suzaku follows the new naming:

  • attack.stealth and the legacy attack.defense-evasion both abbreviate to Stealth, so older rules that still use the attack.defense-evasion tag are displayed with the current tactic name.
  • attack.defense-impairment abbreviates to DefImpair.

If you prefer the old label, change the attack.defense-evasion line in config/mitre_tactics.txt (for example back to Evas).