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Add references to rules (crowdstrike_rules) #1004

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Dec 11, 2023
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ Description: Detects AWS Logins from IP addresses not found in CrowdStrike's AIP
DisplayName: "AWS Authentication From CrowdStrike Unmanaged Device"
Enabled: false
Filename: aws_authentication_from_crowdstrike_unmanaged_device.py
Reference: https://www.crowdstrike.com/wp-content/uploads/2023/05/crowdstrike-falcon-device-control-data-sheet.pdf
Severity: Medium
Tests:
- ExpectedResult: true
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Expand Up @@ -11,7 +11,7 @@ Tags:
Severity: Medium
Description: Detects the execution of common command line tools (e.g., PowerShell, cmd.exe) with Base64 encoded arguments, which could indicate an attempt to obfuscate malicious commands.
Runbook: Investigate the endpoint for signs of command line tool execution with Base64 encoded arguments. Review the executed command, decode the Base64 string, and analyze the original content.
Reference: N/A
Reference: https://www.crowdstrike.com/blog/blocking-fileless-script-based-attacks-using-falcon-script-control-feature/
DedupPeriodMinutes: 60
Tests:
-
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Expand Up @@ -3,6 +3,7 @@ Description: Detects usage of tools commonly used for credential dumping.
DisplayName: "Crowdstrike Credential Dumping Tool"
Enabled: true
Filename: crowdstrike_credential_dumping_tool.py
Reference: https://www.crowdstrike.com/blog/adversary-credential-theft/
Severity: Critical
Tests:
- ExpectedResult: true
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Expand Up @@ -3,6 +3,7 @@ Description: Detects the execution of known crytocurrency mining tools.
DisplayName: "Crowdstrike Cryptomining Tools "
Enabled: true
Filename: crowdstrike_cryptomining_tools.py
Reference: https://www.crowdstrike.com/cybersecurity-101/cryptojacking/
Severity: Critical
Tests:
- ExpectedResult: true
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Expand Up @@ -11,6 +11,7 @@ Tags:
- Crowdstrike
Description: Crowdstrike Falcon has detected malicious activity on a host.
Runbook: Follow the Falcon console link and follow the IR process as needed.
Reference: https://www.crowdstrike.com/blog/tech-center/hunt-threat-activity-falcon-endpoint-protection/
DedupPeriodMinutes: 0
SummaryAttributes:
- p_any_ip_addresses
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Expand Up @@ -4,6 +4,7 @@ Description: Detects attempt to install a root certificate on MacOS
Enabled: true
Filename: crowdstrike_macos_add_trusted_cert.py
RuleID: Crowdstrike.Macos.Add.Trusted.Cert
Reference: https://docs.panther.com/data-onboarding/supported-logs/crowdstrike#crowdstrike.processrollup2
Severity: Medium
LogTypes:
- Crowdstrike.FDREvent
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Expand Up @@ -4,6 +4,7 @@ Description: Detects usage of osascript with administrator privileges
Enabled: true
Filename: crowdstrike_macos_osascript_administrator.py
RuleID: Crowdstrike.Macos.Osascript.Administrator
Reference: https://www.sentinelone.com/blog/how-offensive-actors-use-applescript-for-attacking-macos/
Severity: Medium
LogTypes:
- Crowdstrike.FDREvent
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Expand Up @@ -4,6 +4,7 @@ Description: Detects the usage of plutil to modify plist files. Plist files run
Enabled: true
Filename: crowdstrike_macos_plutil_usage.py
RuleID: Crowdstrike.Macos.Plutil.Usage
Reference: https://www.crowdstrike.com/blog/reconstructing-command-line-activity-on-macos/#:~:text=Terminal.savedState/.-,Windows.plist,-The%20file%20windows
Severity: Medium
LogTypes:
- Crowdstrike.FDREvent
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Expand Up @@ -3,6 +3,7 @@ Description: Detects usage of common remote access tools.
DisplayName: "Crowdstrike Remote Access Tool Execution"
Enabled: true
Filename: crowdstrike_remote_access_tool_execution.py
Reference: https://attack.mitre.org/techniques/T1219/
Severity: Medium
Tests:
- ExpectedResult: true
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Expand Up @@ -3,6 +3,7 @@ Description: Detects usage of tools commonly used to to establish reverse shells
DisplayName: "Crowdstrike Reverse Shell Tool Executed"
Enabled: true
Filename: crowdstrike_reverse_shell_tool_executed.py
Reference: https://attack.mitre.org/techniques/T1059/
Severity: High
Tests:
- ExpectedResult: true
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Expand Up @@ -3,6 +3,7 @@ Description: 'Detects when a user attempts to clear system logs. '
DisplayName: "Crowdstrike Systemlog Tampering"
Enabled: true
Filename: crowdstrike_systemlog_tampering.py
Reference: https://attack.mitre.org/techniques/T1070/001/
Severity: High
Tests:
- ExpectedResult: true
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Expand Up @@ -3,6 +3,7 @@ Description: Detects unusual parent child process pairings.
DisplayName: "Crowdstrike Unusual Parent Child Processes"
Enabled: true
Filename: crowdstrike_unusual_parent_child_processes.py
Reference: https://medium.com/falconforce/falconfriday-e4554e9e6665
Severity: Critical
Tests:
- ExpectedResult: true
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Expand Up @@ -4,6 +4,7 @@ DisplayName: "Crowdstrike WMI Query Detection"
Enabled: true
Filename: crowdstrike_wmi_query_detection.py
Runbook: Investigate the endpoint for signs of WMI query execution. Review the executed query and the associated user account.
Reference: https://learn.microsoft.com/en-us/windows/win32/wmisdk/querying-wmi
Severity: Low
Tests:
- ExpectedResult: false
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Expand Up @@ -3,6 +3,7 @@ Description: Detects Okta Logins from IP addresses not found in CrowdStrike''s A
DisplayName: "Okta Login From CrowdStrike Unmanaged Device"
Enabled: false
Filename: okta_login_from_crowdstrike_unmanaged_device.py
Reference: https://www.crowdstrike.com/wp-content/uploads/2023/05/crowdstrike-falcon-device-control-data-sheet.pdf
Severity: Medium
Tests:
- ExpectedResult: true
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Expand Up @@ -3,6 +3,7 @@ Description: Detects 1Password Logins from IP addresses not found in CrowdStrike
DisplayName: "1Password Login From CrowdStrike Unmanaged Device"
Enabled: false
Filename: onepassword_login_from_crowdstrike_unmanaged_device.py
Reference: https://www.crowdstrike.com/wp-content/uploads/2023/05/crowdstrike-falcon-device-control-data-sheet.pdf
Severity: Medium
Tests:
- ExpectedResult: true
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