Commit Graph

4 Commits

Author SHA1 Message Date
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
Terrance DeJesus b8ae2218f8 [Rule Tuning] Add filebeat Compatibility to Network Rules (#2925)
* add beats compatability to NPC rules

* added filebeat compatibility to 'Accepted Default Telnet Port Connection'

* added filebeat compatibility to 'Cobalt Strike Command and Control Beacon'

* added filebeat compatibility to 'Default Cobalt Strike Team Server Certificate'

* added filebeat compatibility to 'Roshal Archive (RAR) or PowerShell File Downloaded from the Internet'

* added filebeat compatibility to 'Possible FIN7 DGA Command and Control Behavior'

* added filebeat compatibility to 'Halfbaked Command and Control Beacon'

* added filebeat compatibility to 'IPSEC NAT Traversal Port Activity'

* added filebeat compatibility to 'SMTP on Port 26/TCP'

* added filebeat compatibility to 'RDP (Remote Desktop Protocol) from the Internet'

* added filebeat compatibility to 'VNC (Virtual Network Computing) from the Internet'

* added filebeat compatibility to 'VNC (Virtual Network Computing) to the Internet'

* added filebeat compatibility to 'RPC (Remote Procedure Call) from the Internet'

* added filebeat compatibility to 'RPC (Remote Procedure Call) to the Internet'

* added filebeat compatibility to 'SMB (Windows File Sharing) Activity to the Internet'

* removed extra space in query

* added filebeat compatibility to 'Inbound Connection to an Unsecure Elasticsearch Node'

* added filebeat compatibility to 'Abnormally Large DNS Response'

* fixed missing ending parenthesis

* added auditbeat to compatible rules

* addressed feedback

* removed filebeat and auditbeat due to incompatibility

* Update rules/network/command_and_control_cobalt_strike_beacon.toml

* Update rules/network/command_and_control_accepted_default_telnet_port_connection.toml

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

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Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com>
2023-10-03 15:05:41 -04:00
Ruben Groenewoud a7ff449fbc [Rule Tuning] Some Tunings of several 8.9 rules (#2985)
* [Rule Tuning] Doing some quick tunings

* updated_date bump

* Update rules/linux/discovery_linux_modprobe_enumeration.toml

* Update rules/linux/discovery_linux_modprobe_enumeration.toml

* Update rules/linux/discovery_linux_sysctl_enumeration.toml

* Update rules/linux/persistence_init_d_file_creation.toml

* Update rules/linux/persistence_rc_script_creation.toml

* Update rules/linux/persistence_shared_object_creation.toml

* deprecate rule

* deprecate rule

* Update execution_abnormal_process_id_file_created.toml

* Update discovery_kernel_module_enumeration_via_proc.toml

* Update discovery_linux_modprobe_enumeration.toml

* Update execution_remote_code_execution_via_postgresql.toml

* Update discovery_potential_syn_port_scan_detected.toml

* Added 2 tunings, sorry I missed those..

* One more tune

* Update discovery_suspicious_proc_enumeration.toml
2023-08-03 15:25:33 +02:00
Remco Sprooten 1283a21fb7 [New Rules] Potential portscan detected (#2817)
* [New Rules] Potential portscan detected

* Updated descriptions

* Update rules/network/discovery_potential_syn_port_scan_detected.toml

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

* Update rules/network/discovery_potential_network_sweep_detected.toml

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

* Update rules/network/discovery_potential_port_scan_detected.toml

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

* updating integration manifests and schemas

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Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
Co-authored-by: Isai <59296946+imays11@users.noreply.github.com>
Co-authored-by: terrancedejesus <terrance.dejesus@elastic.co>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
2023-07-09 09:49:32 +02:00