Commit Graph

14 Commits

Author SHA1 Message Date
Ruben Groenewoud ccd3f70ee8 [Rule Tuning] Linux DR Tuning - 6 (#5497)
* [Rule Tuning] Linux DR Tuning - 6

* Fix syntax error in discovery_esxi_software_via_grep.toml

* Update discovery_pam_version_discovery.toml

* Update discovery_virtual_machine_fingerprinting.toml

* Revise investigation title for kernel module enumeration

Updated the title of the investigation section to clarify focus on unusual kernel module enumeration.

* Update discovery_port_scanning_activity_from_compromised_host.toml

* Enhance ESQL query for subnet scanning detection

Updated ESQL query to include additional fields and conditions for better analysis of connection attempts from compromised hosts.

* Remove Elastic Endgame data source from rule

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Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
2026-01-08 10:45:32 +01:00
Jonhnathan 0268daa17d [Rule Tuning] Tighten Up Elastic Defend Indexes - Linux (#4446) 2025-02-05 15:25:45 -03:00
Mika Ayenson fe8c81d762 [FR] Generate investigation guides (#4358) 2025-01-22 11:17:38 -06:00
Mika Ayenson b80d8342d6 [Docs | Rule Tuning] Add blog references to rules (#4097)
* [Docs | Rule Tuning] Add blog references to rules

* Apply suggestions from code review

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>

* Apply suggestions from code review

* Update google_workspace blog references

* add okta blog references

* Update dates

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Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
2024-09-25 15:19:20 -05:00
shashank-elastic 63e91c2f12 Back-porting Version Trimming (#3704) 2024-05-23 00:45:10 +05:30
Mika Ayenson 2c3dbfc039 Revert "Back-porting Version Trimming (#3681)"
This reverts commit 71d2c59b5c.
2024-05-22 13:51:46 -05:00
shashank-elastic 71d2c59b5c Back-porting Version Trimming (#3681) 2024-05-23 00:11:50 +05:30
Jonhnathan 458e67918a [Security Content] Small tweaks on the setup guides (#3308)
* [Security Content] Small tweaks on the setup guides

* Additional Fixes

* Avoid touching deprecated rules
2024-03-11 09:09:40 -03:00
shashank-elastic d52546eee5 Enhance Setup Guide information (#3256) 2023-11-03 19:05:29 +05:30
Ruben Groenewoud 020fff3aea [Rule Tuning] Linux Rules (#3092)
* [Rule Tuning] [WIP] Linux DR

* Update defense_evasion_binary_copied_to_suspicious_directory.toml

* Fixed tag

* Added additional tuning

* unit test fix

* Additional tuning

* tuning

* added max signals

* Added max_signals=1 to brute force rules

* Cross-Platform Tuning

* Small fix

* new_terms conversion

* typo

* new_terms conversion

* Ransomware rule tuning

* performance tuning

* new_terms conversion for auditd_manager

* tune

* Need coffee

* kql/eql stuff

* formatting improvement

* new_terms sudo hijacking conversion

* exclusion

* Deprecations that were added last tuning

* Deprecations that were added last tuning

* Increased max timespan for brute force rules

* version bump

* added domain tag

* Two tunings

* More tuning

* Additional tuning

* updated_date bump

* query optimization

* Tuning

* Readded the exclusions for this one

* Changed int comparison

* Some tunings

* Update persistence_systemd_scheduled_timer_created.toml

* Update rules/linux/privilege_escalation_ld_preload_shared_object_modif.toml

Co-authored-by: Isai <59296946+imays11@users.noreply.github.com>

* [New Rule] Potential curl CVE-2023-38545 Exploitation

* Revert "[New Rule] Potential curl CVE-2023-38545 Exploitation"

This reverts commit 9c04d1b53d3d63678289f43ec0c7b617d26f1ce0.

* Update rules/cross-platform/command_and_control_non_standard_ssh_port.toml

* Update rules/linux/command_and_control_cat_network_activity.toml

* Update persistence_message_of_the_day_execution.toml

* Changed max_signals

* Revert "Merge branch 'main' into rule-tuning-ongoing-dr"

This reverts commit 1106b5d2eba1a3529eff325226d6baabfd4b0bf3, reversing
changes made to 5ff510757f25b0cb32e1ef18e9e2c34c8ec325a8.

* Revertable merge

* Update defense_evasion_ld_preload_env_variable_process_injection.toml

* File name change

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Co-authored-by: Isai <59296946+imays11@users.noreply.github.com>
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
2023-10-23 16:28:58 +02:00
shashank-elastic 7254c582c5 Move Setup information into setup filed (#3206) 2023-10-23 19:28:18 +05:30
shashank-elastic 25b527c149 Setup information for Linux Rules - Set4 (#3179) 2023-10-17 18:59:31 +05:30
Jonhnathan 4233fef238 [Security Content] Include "Data Source: Elastic Defend" tag (#3002)
* win folder

* Other folders

* Update test_all_rules.py

* .

* updated missing elastic defend tags

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Co-authored-by: terrancedejesus <terrance.dejesus@elastic.co>
2023-09-05 14:22:01 -04:00
Ruben Groenewoud 03110fb24c [New Rule] SUID/SGUID Enumeration Detected (#2956)
* [New Rule] SUID/SGUID Enumeration Detected

* Remove endgame compatibility

* readded endgame support after troubleshooting

* Update discovery_suid_sguid_enumeration.toml

* Update rules/linux/discovery_suid_sguid_enumeration.toml

Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com>

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Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com>
2023-08-03 09:57:30 +02:00