Samirbous
3726611b93
* [Tuning] Windows BruteForce Rules Tuning #1 Multiple Logon Failure from the same Source Address: converted to ES|QL and raised the threshold to 100 failed auths, alert quality should be better since it aggregates all failed auths info into one alert vs multiple EQL matches. (expected reduction more than 50%) #2 Privileged Account Brute Force - coverted to ESQL and set the threshold to 50 in a minute. this should drop noise volume by more than 50%. * ++ * Update execution_shell_evasion_linux_binary.toml * Update execution_shell_evasion_linux_binary.toml * Update defense_evasion_indirect_exec_forfiles.toml * Update lateral_movement_remote_file_copy_hidden_share.toml * Update lateral_movement_remote_file_copy_hidden_share.toml * Update persistence_service_windows_service_winlog.toml * Update credential_access_lsass_openprocess_api.toml * Update persistence_suspicious_scheduled_task_runtime.toml * Update impact_hosts_file_modified.toml * Update defense_evasion_process_termination_followed_by_deletion.toml * Update rules/windows/credential_access_lsass_openprocess_api.toml * Update rules/windows/credential_access_bruteforce_admin_account.toml Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com> * Update rules/windows/credential_access_lsass_openprocess_api.toml Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com> * Update rules/windows/credential_access_bruteforce_multiple_logon_failure_same_srcip.toml Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com> * Update credential_access_lsass_openprocess_api.toml * Update impact_hosts_file_modified.toml * Update credential_access_dollar_account_relay.toml * Update credential_access_new_terms_secretsmanager_getsecretvalue.toml --------- Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
rules/
Rules within this folder are organized by solution or platform. The structure is flattened out, because nested file hierarchies are hard to navigate and find what you're looking for. Each directory contains several .toml files, and the primary ATT&CK tactic is included in the file name when it's relevant (i.e. windows/execution_via_compiled_html_file.toml)
| folder | description |
|---|---|
. |
Root directory where rules are stored |
apm/ |
Rules that use Application Performance Monitoring (APM) data sources |
cross-platform/ |
Rules that apply to multiple platforms, such as Windows and Linux |
integrations/ |
Rules organized by Fleet integration |
linux/ |
Rules for Linux or other Unix based operating systems |
macos/ |
Rules for macOS |
ml/ |
Rules that use machine learning jobs (ML) |
network/ |
Rules that use network data sources |
promotions/ |
Rules that promote external alerts into detection engine alerts |
windows/ |
Rules for the Microsoft Windows Operating System |
Integration specific rules are stored in the integrations/ directory:
| folder | integration |
|---|---|
aws/ |
Amazon Web Services (AWS) |
azure/ |
Microsoft Azure |
cyberarkpas/ |
Cyber Ark Privileged Access Security |
endpoint/ |
Elastic Endpoint Security |
gcp/ |
Google Cloud Platform (GCP) |
google_workspace/ |
Google Workspace (formerly GSuite) |
o365/ |
Microsoft Office |
okta/ |
Oka |