Commit Graph

713 Commits

Author SHA1 Message Date
Samirbous ad2c069baa [New Rule] Potential Remote Credential Access via Registry (#1804)
* [New Rule] Potential Remote Credential Access via Registry

4624 logon followed by hive file creation by regsvc svchost.exe by same user.name and host.id. This matches on secretdsdump and other similar implementations. require to correlation Elastic endpoint file events with System integration logs (4624).

Example of data :

* Delete workspace.xml

* Update credential_access_remote_sam_secretsdump.toml

* Update credential_access_remote_sam_secretsdump.toml

* add non ecs field

* Update non-ecs-schema.json

* Update credential_access_remote_sam_secretsdump.toml

* Update rules/windows/credential_access_remote_sam_secretsdump.toml

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

* Update rules/windows/credential_access_remote_sam_secretsdump.toml

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

* Update rules/windows/credential_access_remote_sam_secretsdump.toml

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

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit a6582351b5)
2022-03-03 15:31:20 +00:00
Terrance DeJesus a1e28ef4ff [New Rule] Execution control.exe via WorkFolders.exe (#1806)
* added detection rule defense_evasion_workfolders_control_execution.toml related to issue #1586

* updated rule authors

* added references to the rule

* added timestamp override variable to the rule

* adjusted value of timestamp override from event_ingested to event.ingested

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* linted toml file as suggested

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit 202b9c7479)
2022-03-03 14:24:27 +00:00
Jonhnathan 82331f05d1 [Rule Tuning] Update PowerShell script_block queries to avoid partial matches (#1807)
* Update script_block queries

* Update execution_posh_psreflect.toml

(cherry picked from commit 5c477849fe)
2022-03-03 10:39:59 +00:00
shashank-elastic 7bfd5622f3 find shell evasion threat(#1801)
* new:rule:issue-1800 Adding new rule for find shell evasion

* new:rule:issue-1800 Adding new rule for find shell evasion

* new:rule:issue-1800 Adding new rule for find shell evasion

* Update rules/linux/privilege_escalation_find_binary.toml

* Update rules/linux/privilege_escalation_find_binary.toml

* new:rule:issue-1800 Adding Mittre Attack Techniques

* Update rules/linux/privilege_escalation_find_binary.toml

* Update rules/linux/privilege_escalation_find_binary.toml

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

* Update rules/linux/privilege_escalation_find_binary.toml

* Update rules/linux/privilege_escalation_find_binary.toml

* Update rules/linux/privilege_escalation_find_binary.toml

* Update rules/linux/privilege_escalation_find_binary.toml

* new:rule:issue-1800 Review Comments

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit 283cbca702)
2022-03-02 16:32:49 +00:00
shashank-elastic 139d56ee86 apt binary shell evasion threat (#1792)
* new:rule:issue-1782 Adding a new Rule for apt binary shell evasion threat

* new:rule:issue-1782 Review Comments

* Update rules/linux/apt_binary_shell_evasion.toml

* new:rule:issue-1782 Adding Mittre Attack Techniques

* new:rule:issue-1782 Adding Mittre Attack Techniques

* new:rule:issue-1782 Adding Mittre Attack Techniques

* new:rule:issue-1782 Adding Mittre Attack Techniques

* new:rule:issue-1782 Adding Mittre Attack Techniques

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

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

* Update rules/linux/privilege_escalation_apt_binary.toml

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

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

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

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

* new:rule:issue-1782 Review Comments

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>

(cherry picked from commit c9dd047966)
2022-03-02 16:30:22 +00:00
shashank-elastic a645bc7bbb awk binary shell evasion threat (#1794)
* new:rule:issue-1785 Adding a new Rule for awk binary shell evasion threat

* Update rules/linux/awk_binary_shell_evasion.toml

* Update rules/linux/awk_binary_shell_evasion.toml

* new:rule:issue-1785 Adding Mittre Attack Techniques

* new:rule:issue-1785 Adding Mittre Attack Techniques

* new:rule:issue-1785 Adding Mittre Attack Techniques

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

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

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

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

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* new:rule:issue-1785 Review Comments

* new:rule:issue-1785 Review Comments

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>

(cherry picked from commit e004a2f4a5)
2022-03-02 16:26:37 +00:00
shashank-elastic 56997556f5 env binary shell evasion threat (#1793)
* new:rule:issue-1786 Adding a new Rule for env binary shell evasion threat

* new:rule:issue-1786 Adding a new Rule for env binary shell evasion threat

* Update rules/linux/env_binary_shell_evasion.toml

* Update rules/linux/env_binary_shell_evasion.toml

* new:rule:issue-1786 Adding Mittre Attack Techniques

* new:rule:issue-1786 Adding Mittre Attack Techniques

* new:rule:issue-1786 Adding Mittre Attack Techniques

* new:rule:issue-1786 Adding Mittre Attack Techniques

* new:rule:issue-1786 Adding Mittre Attack Techniques

* Update rules/linux/privilege_escalation_env_binary.toml

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

* Update rules/linux/privilege_escalation_env_binary.toml

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

* Update rules/linux/privilege_escalation_env_binary.toml

* Update rules/linux/privilege_escalation_env_binary.toml

* new:rule:issue-1786 Review Comments

* Update rules/linux/defense_evasion_env_binary.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit 758784d4d5)
2022-03-02 16:19:45 +00:00
Samirbous 36369ebf96 [New Rule] Registry Hive File Creation via SMB (#1779)
* [New Rule] Registry Hive File Creation via SMB

Identifies the creation or modification of a medium size registry hive file via the SMB protocol :

* Update credential_access_moving_registry_hive_via_smb.toml

* Update etc/non-ecs-schema.json

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

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit f48144c6b3)
2022-03-02 09:14:52 +00:00
Jonhnathan 31f75bd7e6 Update impact_azure_service_principal_credentials_added.toml (#1802)
(cherry picked from commit 8a9b52f7e1)
2022-03-02 08:38:49 +00:00
Jonhnathan 73b3bec457 [Security Content] Update rules based on docs review (#1803)
* Adds suggestions from security-docs

* Update rules/windows/lateral_movement_powershell_remoting_target.toml

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>

(cherry picked from commit 1c50f35aed)
2022-03-02 00:41:56 +00:00
Mika Ayenson aab23636e8 [New Rule] LSASS Memory Dump (#1784)
* Add new event_data fields (ObjectName, ProcessName)

* Add detection for LSASS Memory Dump Handle Access

* Reference an example of 120089 AccessMask presence

* modify query to increase performance and update the description to remove ("This rule").

* expand path to Elastic Agent ensure syntax consistency

* Optimize rule based on AccessMaskDescription and additional False Positives.

* add AccessMaskDescription keyword and rule tune to make sure AccessMask is used

* filter dllhost.exe and or the condition between AccessMask and AccessMaskDescription

* cleanup

(cherry picked from commit aa7d79cc53)
2022-02-24 13:16:42 +00:00
Jonhnathan 99c559f870 Update persistence_azure_conditional_access_policy_modified.toml (#1788)
(cherry picked from commit 8664ef59f4)
2022-02-22 18:29:00 +00:00
Jonhnathan 678f7cb93c [Rule Tuning] Update rules based on docs review (#1778)
* Update rules based on docs review

* trivial change to trigger CLA

* undo changes from triggering build

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

(cherry picked from commit dec4243db0)
2022-02-16 16:44:51 +00:00
Jonhnathan f571eb970d [Rule Tuning] Remove Windows Integration & Winlogbeat Support - User.id (#1773)
* Remove Windows Integration & Winlogbeat Support

* Update lateral_movement_service_control_spawned_script_int.toml

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

(cherry picked from commit 3227d65cd8)
2022-02-16 02:07:27 +00:00
Jonhnathan cd59ed785a [Rule Tuning] Potential Command and Control via Internet Explorer (#1771)
* Use user.name on the sequence instead of user.id

* Update command_and_control_iexplore_via_com.toml

* Remove min_stack and comment "with runs"

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

(cherry picked from commit 03f60cc11c)
2022-02-16 02:00:28 +00:00
Jonhnathan ef78093d88 [New Rule] Potential Credential Access via DCSync (#1763)
* "Potential Credential Access via DCSync" Initial Rule

* replace unintentional bracket removal

* json

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

(cherry picked from commit 42436d3364)
2022-02-16 00:42:49 +00:00
Jonhnathan 9885be0f59 Modified to use Integrity fields instead of user.id (#1772)
(cherry picked from commit fd678dc5cb)
2022-02-16 00:25:10 +00:00
Jonhnathan fd3d2708a1 [Rule Tuning] Sysmon Registry-based Rules Review & Fixes (#1775)
* Initial Review of Sysmon Registry Rules

* Update defense_evasion_sip_provider_mod.toml

(cherry picked from commit 9bbe26fec0)
2022-02-15 12:59:15 +00:00
Jonhnathan 3b97ee423b Update discovery_net_command_system_account.toml (#1769)
(cherry picked from commit c646a18efb)
2022-02-14 15:13:55 +00:00
Samirbous fbcc7433ad [New Rule] Windows Service Installed via an Unusual Client (#1759)
* [New Rule] Windows Service Installed via an Unusual Client

https://www.x86matthew.com/view_post?id=create_svc_rpc

* Update non-ecs-schema.json

* Update rules/windows/privilege_escalation_windows_service_via_unusual_client.toml

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

* Update rules/windows/privilege_escalation_windows_service_via_unusual_client.toml

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

* Add ```s

* Update privilege_escalation_windows_service_via_unusual_client.toml

* add missing comma to schema

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit 326aa64ff6)
2022-02-11 20:59:20 +00:00
Jonhnathan c59429719d Modification of AmsiEnable Registry Key - Sysmon support (#1760)
(cherry picked from commit 9c56b00429)
2022-02-11 20:51:51 +00:00
Jonhnathan 782b6c1d0e Update impact_volume_shadow_copy_deletion_or_resized_via_vssadmin.toml (#1757)
(cherry picked from commit aa9fedd18d)
2022-02-11 17:18:12 +00:00
Khristinin Nikita 4fe57055a0 [Rule Tuning] Fix IM query (#1767)
* Fix IM quer

* Add update date

(cherry picked from commit b1121da237)
2022-02-10 18:32:37 +00:00
Jonhnathan 6b1b8587e1 [Documentation] Fix O365 Integration name on Rules and Unit Test (#1684)
* Adjust Integration Name

* Update defense_evasion_microsoft_365_mailboxauditbypassassociation.toml

* Update integration name

* .

* Case

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

(cherry picked from commit 5a16a222ad)
2022-02-09 22:06:05 +00:00
Justin Ibarra b4863ddde5 Move misplaced rule to proper folder (#1756)
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

(cherry picked from commit 97835bc5c5)
2022-02-04 20:38:01 +00:00
Jonhnathan 2fe12168bc [New Rule] Potential Shadow Credentials added to AD Object (#1729)
* Potential Shadow Credentials added to AD Object Initial Rule

* Apply suggestions from code review

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

* Update credential_access_shadow_credentials.toml

* Add AD tag

* Update credential_access_shadow_credentials.toml

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

(cherry picked from commit 85b72256c2)
2022-02-04 18:51:25 +00:00
Jonhnathan df2a844584 [New Rule] PowerShell Script Block Logging Disabled (#1749)
* PowerShell Script Block Logging Disabled

* Update rules/windows/defense_evasion_disable_posh_scriptblocklogging.toml

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

* Update defense_evasion_disable_posh_scriptblocklogging.toml

* Apply suggestions from code review

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

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit 7dac52f1cf)
2022-02-04 18:46:55 +00:00
Jonhnathan 7e25f14766 Update credential_access_mod_wdigest_security_provider.toml (#1751)
(cherry picked from commit 40095d95bf)
2022-02-04 18:40:39 +00:00
Jonhnathan 6ed9769eb6 [New Rule] AdminSDHolder Backdoor (#1745)
* AdminSDHolder Backdoor

* Update rules/windows/persistence_ad_adminsdholder.toml

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

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

(cherry picked from commit 9ce5d0b92a)
2022-02-01 13:17:28 +00:00
Jonhnathan 58e0584e73 [New Rule] KRBTGT Delegation Backdoor (#1743)
* KRBTGT Delegation Backdoor

* Update persistence_msds_alloweddelegateto_krbtgt.toml

* Update non-ecs-schema.json

* Update rules/windows/persistence_msds_alloweddelegateto_krbtgt.toml

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

* refresh rule_id with new uuid

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

(cherry picked from commit d949fefe0c)
2022-02-01 13:11:57 +00:00
Jonhnathan f661eca2eb [Rule Tuning] O365 Exchange Suspicious Mailbox Right Delegation (#1741)
* Update persistence_exchange_suspicious_mailbox_right_delegation.toml

* fix year

(cherry picked from commit 26d5bad914)
2022-02-01 00:04:37 +00:00
Jonhnathan 4e9432a563 [New Rule] Kerberos Preauthentication Disabled for User (#1717)
* Initial "Kerberos Preauthentication Disabled for User" Rule

* Update credential_access_disable_kerberos_preauth.toml

* Update credential_access_disable_kerberos_preauth.toml

* Apply suggestions from code review

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

* Add config directives

* Update rules/windows/credential_access_disable_kerberos_preauth.toml

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

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit 6e3f4b2824)
2022-01-31 15:34:02 +00:00
Jonhnathan fa09b26d59 [New Rule] SeEnableDelegationPrivilege assigned to User (#1737)
* SeEnableDelegationPrivilege assigned to User

* Apply suggestions from code review

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

* Fix logging policy name

* Update rules/windows/credential_access_seenabledelegationprivilege_assigned_to_user.toml

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

* lint

* Update credential_access_seenabledelegationprivilege_assigned_to_user.toml

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit 25ec71579d)
2022-01-31 15:25:23 +00:00
Justin Ibarra 948e484070 [Rule tuning] Update rules based on docs review (#1663)
* [Rule tuning] Update rule verbiage based on docs review

* fix typos

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

* revert TI rule changes since it was deprecated

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

(cherry picked from commit 72c64de3f5)
2022-01-28 19:43:39 +00:00
Khristinin Nikita c05b5dc5f9 [Rule Tuning] Change default time query for rounding days (#1713)
* Change default time query for rounding days

* Udpate date

* Revert rule updated_data

* Restore threat_query

(cherry picked from commit 87c7210aab)
2022-01-28 19:36:44 +00:00
Jonhnathan c1c239e1ec [New Rule] PowerShell Kerberos Ticket Request (#1715)
* PowerShell Kerberos Ticket Request Initial Rule

* bump date

(cherry picked from commit edd0df5e1a)
2022-01-27 19:38:40 +00:00
Jonhnathan 012e88601e [New Rule] Email Reported by User as Malware or Phish (#1699)
* Email Reported by User as Malware or Phish Initial Rule

* Update initial_access_o365_user_reported_phish_malware.toml

* Update rules/integrations/o365/initial_access_o365_user_reported_phish_malware.toml

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

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

(cherry picked from commit 189c2b152c)
2022-01-27 19:33:20 +00:00
Jonhnathan 239f7f9324 [New Rule] MS Office Macro Security Registry Modifications (#1696)
* "MS Office Macro Security Registry Modifications" Initial Rule

* Update rules/windows/defense_evasion_ms_office_suspicious_regmod.toml

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

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

(cherry picked from commit b6cbdbd416)
2022-01-27 19:27:12 +00:00
Jonhnathan c300fce9f7 [New Rule] OneDrive Malware File Upload (#1693)
* "OneDrive Malware File Upload" Initial Rule

* bump severity

(cherry picked from commit f7bc13b437)
2022-01-27 19:22:11 +00:00
Jonhnathan b0b52abbd5 [New Rule] SharePoint Malware File Upload (#1691)
* "SharePoint Malware File Upload" Initial Rule

* s/onedrive/sharepoint

* bump severity

(cherry picked from commit 1676844640)
2022-01-27 19:15:20 +00:00
Samirbous c8671b4a1e [New Rule] Potential Privileged Escalation via SamAccountName Spoofing (#1660)
* [New Rule] Potential Privileged Escalation via SamAccountName Spoofing

Identifies a suspicious computer account name rename event, this may indicate an attempt to exploit CVE-2021-42278 to elevated privileges from standard domain user to domain admin privileges. CVE-2021-42278 is a security vulnerability that allows potential attackers to impersonate a domain controller using computer account sAMAccountName spoofing.

https://cloudbrothers.info/en/exploit-kerberos-samaccountname-spoofing/
https://github.com/cube0x0/noPac

EQL

```
iam where event.action == "renamed-user-account" and
  /* machine account name renamed to user like account name */
  winlog.event_data.OldTargetUserName : "*$" and not winlog.event_data.NewTargetUserName : "*$"
```

* Create privilege_escalation_samaccountname_spoofing_attack.toml

* Update non-ecs-schema.json

* extra ref

* toml linted

* ref for MS kb5008102

* more ref

* Update rules/windows/privilege_escalation_samaccountname_spoofing_attack.toml

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

* Update rules/windows/privilege_escalation_samaccountname_spoofing_attack.toml

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

* Update non-ecs-schema.json

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit 26fb8e83a5)
2022-01-27 14:49:15 +00:00
Jonhnathan 71c382b1f5 [New Rule] Global Administrator Role Assigned (#1686)
* Initial Global Administrator Role Assigned Rules

* Apply suggestions from code review

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

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

(cherry picked from commit 14252d45ee)
2022-01-27 12:55:30 +00:00
Jonhnathan 15d6244331 Create credential_access_mfa_push_brute_force.toml (#1682)
(cherry picked from commit 7e4325dd7a)
2022-01-27 12:40:11 +00:00
Jonhnathan b753a05c72 [Rule Tuning] GCP Kubernetes Rolebindings Created or Patched (#1718)
* Update privilege_escalation_gcp_kubernetes_rolebindings_created_or_patched.toml

* Update rules/integrations/gcp/privilege_escalation_gcp_kubernetes_rolebindings_created_or_patched.toml

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

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

(cherry picked from commit 38ae64f729)
2022-01-27 12:34:30 +00:00
Jonhnathan a5b1ac9e0e Update credential_access_suspicious_lsass_access_memdump.toml (#1714)
(cherry picked from commit 1699f50beb)
2022-01-27 12:30:41 +00:00
Jonhnathan 45946dbf3e Update source.ip condition (#1712)
(cherry picked from commit 4ac824192f)
2022-01-27 12:27:38 +00:00
Jonhnathan 042f9cfaa1 [Rule Tuning] Fix event.outcome condition on O365 failed logon related rules (#1687)
* Tune rule query

* Update credential_access_microsoft_365_potential_password_spraying_attack.toml

* Update defense_evasion_microsoft_365_exchange_malware_filter_policy_deletion.toml

* Revert "Update defense_evasion_microsoft_365_exchange_malware_filter_policy_deletion.toml"

This reverts commit 5a50aeeff6f1bb23bfeccdc6845e04eb7ccaea43.

(cherry picked from commit 0a23d820c9)
2022-01-27 12:25:02 +00:00
Jonhnathan 51dbef8321 [Rule Tuning] Microsoft 365 Inbox Forwarding Rule Created (#1683)
* Inbox Rule Tuning

* Add RedirectTo

* Update non-ecs-schema.json

(cherry picked from commit 50c7d5f262)
2022-01-27 12:23:36 +00:00
Jonhnathan 9fd1c14450 [Rule Tuning] Azure Virtual Network Device Modified or Deleted (#1679)
* Update impact_virtual_network_device_modified.toml

* Change case

(cherry picked from commit fdeb8cb1de)
2022-01-27 12:19:33 +00:00
Samirbous 9e5c68a04c [New Rule] Potential Privilege Escalation via PKEXEC (#1727)
* [New Rule] Potential Privilege Escalation via PKEXEC

Identifies attempt to exploit a local privilege escalation in polkit pkexec (CVE-2021-4034) via unsecure environment variable injection. Successful exploitation allows an unprivileged user to escalate to the root user :

* Update privilege_escalation_pkexec_envar_hijack.toml

* removed = sign

(cherry picked from commit b9edc5464e)
2022-01-27 09:44:06 +00:00