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rules update: add back rule Delete Bash History for backport compatib… #864

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Oct 3, 2019
Merged

rules update: add back rule Delete Bash History for backport compatib… #864

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09f5faa
rules update: add back rule Delete Bash History for backport compatib…
Kaizhe Sep 27, 2019
c756d2c
rule update: fix missing entries
Kaizhe Sep 27, 2019
278390f
rule update: add more comments
Kaizhe Sep 30, 2019
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13 changes: 13 additions & 0 deletions rules/falco_rules.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -2415,6 +2415,19 @@
WARNING
tag: [process, mitre_defense_evation]

# This rule is deprecated and will/should never be triggered. Keep it here for backport compatibility.
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# Rule Delete or rename shell history is the preferred rule to use now.
- rule: Delete Bash History
desc: Detect bash history deletion
condition: >
((spawned_process and proc.name in (shred, rm, mv) and proc.args contains "bash_history") or
(open_write and fd.name contains "bash_history" and evt.arg.flags contains "O_TRUNC"))
output: >
Shell history had been deleted or renamed (user=%user.name type=%evt.type command=%proc.cmdline fd.name=%fd.name name=%evt.arg.name path=%evt.arg.path oldpath=%evt.arg.oldpath %container.info)
priority:
WARNING
tag: [process, mitre_defense_evation]

- macro: consider_all_chmods
condition: (always_true)

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