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use endswith ash_history to catch both bash and ash

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Signed-off-by: Brad Clark <bdashrad@gmail.com>
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Brad Clark 2022-05-09 10:04:19 -04:00 committed by poiana
parent b9bcf79035
commit 9d41b0a151
1 changed files with 8 additions and 10 deletions
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18
rules/falco_rules.yaml
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@ -2594,33 +2594,31 @@
WARNING WARNING
tags: [process, mitre_persistence] tags: [process, mitre_persistence]
# here `ash_history` will match both `bash_history` and `ash_history`
- macro: modify_shell_history - macro: modify_shell_history
condition: > condition: >
(modify and ( (modify and (
evt.arg.name contains "bash_history" or evt.arg.name endswith "ash_history" or
evt.arg.name endswith "zsh_history" or evt.arg.name endswith "zsh_history" or
evt.arg.name contains "fish_read_history" or evt.arg.name contains "fish_read_history" or
evt.arg.name endswith "fish_history" or evt.arg.name endswith "fish_history" or
evt.arg.name contains "ash_history" or evt.arg.oldpath endswith "ash_history" or
evt.arg.oldpath contains "bash_history" or
evt.arg.oldpath endswith "zsh_history" or evt.arg.oldpath endswith "zsh_history" or
evt.arg.oldpath contains "fish_read_history" or evt.arg.oldpath contains "fish_read_history" or
evt.arg.oldpath endswith "fish_history" or evt.arg.oldpath endswith "fish_history" or
evt.arg.oldpath contains "ash_history" or evt.arg.path endswith "ash_history" or
evt.arg.path contains "bash_history" or
evt.arg.path endswith "zsh_history" or evt.arg.path endswith "zsh_history" or
evt.arg.path contains "fish_read_history" or evt.arg.path contains "fish_read_history" or
evt.arg.path endswith "fish_history" or evt.arg.path endswith "fish_history"))
evt.arg.path contains "ash_history"))
# here `ash_history` will match both `bash_history` and `ash_history`
- macro: truncate_shell_history - macro: truncate_shell_history
condition: > condition: >
(open_write and ( (open_write and (
fd.name contains "bash_history" or fd.name endswith "ash_history" or
fd.name endswith "zsh_history" or fd.name endswith "zsh_history" or
fd.name contains "fish_read_history" or fd.name contains "fish_read_history" or
fd.name endswith "fish_history" or fd.name endswith "fish_history") and evt.arg.flags contains "O_TRUNC")
fd.name contains "ash_history") and evt.arg.flags contains "O_TRUNC")
- macro: var_lib_docker_filepath - macro: var_lib_docker_filepath
condition: (evt.arg.name startswith /var/lib/docker or fd.name startswith /var/lib/docker) condition: (evt.arg.name startswith /var/lib/docker or fd.name startswith /var/lib/docker)