Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
979 detections
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The following analytic detects a suspicious modification to the Windows registry that disables automatic updates. It leverages data from the Endpoint datamodel, specifically monitoring changes to the registry path "*\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\DoNotConnectToWindowsUpdateInternetLocations" with a value of "0x00000001". This activity is significant as it can be used by adversaries, including malware like RedLine Stealer, to evade detection and prevent the system from receiving critical updates. If confirmed malicious, this could allow attackers to exploit vulnerabilities, persist in the environment, and potentially deploy additional payloads.
The following analytic identifies suspicious modifications to the Windows Update configuration registry, specifically targeting the WUStatusServer key. It leverages data from the Endpoint datamodel to detect changes in the registry path associated with Windows Update settings. This activity is significant as it is commonly used by adversaries, including malware like RedLine Stealer, to bypass detection and deploy additional payloads. If confirmed malicious, this modification could allow attackers to evade defenses, potentially leading to further system compromise and persistent unauthorized access.
The following analytic identifies modifications to specific Outlook registry values related to WebView and Today features. It detects when a URL is set in these registry locations, which could indicate attempts to manipulate Outlook's web-based components. The analytic focuses on changes to the "URL" value within Outlook's WebView and Today registry paths. This activity is significant as it may represent an attacker's effort to redirect Outlook's web content or inject malicious URLs. If successful, this technique could lead to phishing attempts, data theft, or serve as a stepping stone for further compromise of the user's email client and potentially sensitive information.
This analytic identifies modifications to the SafeBoot registry keys, specifically within the Minimal and Network paths. Adversaries can use these keys to persist drivers or services in Safe Mode, with Network allowing network connections. If confirmed malicious, this activity could enable attackers to maintain persistence even in Safe Mode, potentially bypassing certain security measures and facilitating further malicious actions.
The following analytic detects a suspicious registry modification aimed at disabling Windows hotkeys for native applications. It leverages data from the Endpoint.Registry data model, focusing on specific registry paths and values indicative of this behavior. This activity is significant as it can impair an analyst's ability to use essential tools like Task Manager and Command Prompt, hindering incident response efforts. If confirmed malicious, this technique can allow an attacker to maintain persistence and evade detection, complicating the remediation process.
The analytic detects registry modifications that disable the Control Panel on Windows systems. It monitors changes to the registry path "*\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoControlPanel" with a value of "0x00000001". This activity is commonly used by malware to prevent users from accessing the Control Panel, hindering the removal of malicious artifacts and persistence mechanisms. If confirmed malicious, this could allow attackers to maintain control over the infected machine and prevent remediation efforts.
The following analytic detects the modification of the Windows registry to disable the Run application in the Start menu. It leverages data from the Endpoint.Registry data model, specifically monitoring changes to the registry path "*\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun" with a value of "0x00000001". This activity is significant because the Run application is a useful shortcut for executing known applications and scripts. If confirmed malicious, this action could hinder system cleaning efforts and make it more difficult to run essential tools, thereby aiding malware persistence.
The following analytic detects a suspicious registry modification that disables the logoff feature on a Windows host. It leverages data from the Endpoint.Registry data model to identify changes to specific registry values associated with logoff functionality. This activity is significant because it can indicate ransomware attempting to make the compromised host unusable and hinder remediation efforts. If confirmed malicious, this action could prevent users from logging off, complicate incident response, and allow attackers to maintain persistence and control over the affected system.
The following analytic detects suspicious registry modifications aimed at disabling Windows Group Policy features. It leverages data from the Endpoint.Registry data model, focusing on specific registry paths and values associated with disabling key Windows functionalities. This activity is significant because it is commonly used by ransomware to hinder mitigation and forensic response efforts. If confirmed malicious, this behavior could severely impair the ability of security teams to analyze and respond to the attack, allowing the attacker to maintain control and persist within the compromised environment.
This analytic detects suspicious registry modifications aimed at hiding common Windows notification features on a compromised host. It leverages data from the Endpoint.Registry data model, focusing on specific registry paths and values. This activity is significant as it is often used by ransomware to obscure visual indicators, increasing the impact of the attack. If confirmed malicious, this could prevent users from noticing critical system alerts, thereby aiding the attacker in maintaining persistence and furthering their malicious activities undetected.
The following analytic detects modifications to the Windows registry that disable Windows Defender Application Guard auditing. It leverages data from the Endpoint.Registry data model, focusing on specific registry paths and values. This activity is significant because disabling auditing can hinder security monitoring and threat detection within the isolated environment, making it easier for malicious activities to go unnoticed. If confirmed malicious, this action could allow attackers to bypass Windows Defender protections, potentially leading to unauthorized access, data exfiltration, or further system compromise.
The following analytic detects a suspicious modification to the Windows registry that changes the auto-update notification setting to "Notify before download." This detection leverages data from the Endpoint.Registry data model, focusing on specific registry paths and values. This activity is significant because it is a known technique used by adversaries, including malware like RedLine Stealer, to evade detection and potentially deploy additional payloads. If confirmed malicious, this modification could allow attackers to bypass security measures, maintain persistence, and exploit vulnerabilities on the target host.
The following analytic detects modifications to the Windows registry that disable toast notifications. It leverages data from the Endpoint.Registry datamodel, specifically monitoring changes to the registry path "*\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\PushNotifications\\ToastEnabled*" with a value set to "0x00000000". This activity is significant because disabling toast notifications can prevent users from receiving critical system and application updates, which adversaries like Azorult exploit for defense evasion. If confirmed malicious, this action could allow attackers to operate undetected, leading to prolonged persistence and potential further compromise of the system.
The following analytic detects modifications to the Windows registry that disable security settings for Terminal Services. It leverages the Endpoint data model, specifically monitoring changes to the registry path associated with Terminal Services security settings. This activity is significant because altering these settings can weaken the security posture of Remote Desktop Services, potentially allowing unauthorized remote access. If confirmed malicious, such modifications could enable attackers to gain persistent remote access to the system, facilitating further exploitation and data exfiltration.
The following analytic detects modifications to the Windows registry aimed at preventing wallpaper changes. It leverages data from the Endpoint.Registry datamodel, specifically monitoring changes to the "NoChangingWallPaper" registry value. This activity is significant as it is a known tactic used by Rhysida ransomware to enforce a malicious wallpaper, thereby limiting user control over system settings. If confirmed malicious, this registry change could indicate a ransomware infection, leading to further system compromise and user disruption.
This analytic is developed to detect suspicious registry modifications targeting the "scforceoption" key. Altering this key enforces smart card login for all users, potentially disrupting normal access methods. Unauthorized changes to this setting could indicate an attempt to restrict access or force a specific authentication method, possibly signifying malicious intent to manipulate system security protocols.
The following analytic identifies instances where three or more distinct registry modification events associated with MITRE ATT&CK Technique T1112 are detected. It leverages data from the Risk data model in Splunk, focusing on registry-related sources and MITRE technique annotations. This activity is significant because multiple registry modifications can indicate an attempt to persist, hide malicious configurations, or erase forensic evidence. If confirmed malicious, this behavior could allow attackers to maintain persistent access, execute malicious code, and evade detection, posing a severe threat to the integrity and security of the affected host.
This analytic detects modifications to the Windows Registry specifically targeting `.pwn` file associations, which is indicative of ValleyRAT malware activity. ValleyRAT may create or alter registry entries to associate `.pwn` files with malicious processes, allowing it to execute harmful scripts or commands when these files are opened. By monitoring for unusual changes in registry keys linked to `.pwn` extensions, this detection helps identify potential ValleyRAT infection attempts and mitigate unauthorized execution.
The following analytic detects suspicious modifications to the Windows registry keys related to file compression color and information tips. It leverages data from the Endpoint.Registry data model, specifically monitoring changes to the "ShowCompColor" and "ShowInfoTip" values under the "Microsoft\\Windows\\CurrentVersion\\Explorer\\Advanced" path. This activity is significant as it was observed in the Hermetic Wiper malware, indicating potential malicious intent to alter file attributes and user interface elements. If confirmed malicious, this could signify an attempt to manipulate file visibility and deceive users, potentially aiding in further malicious activities.
The analytic detects a suspicious registry modification that disables the Change Password feature on a Windows host. It identifies changes to the registry path "*\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System\\DisableChangePassword" with a value of "0x00000001". This activity is significant as it can prevent users from changing their passwords, a tactic often used by ransomware to maintain control over compromised systems. If confirmed malicious, this could hinder user response to an attack, allowing the attacker to persist and potentially escalate their access within the network.
The following analytic detects modifications to the ThrottleDetectionEventsRate registry setting in Windows Defender. It leverages data from the Endpoint.Registry datamodel to identify changes in the registry path related to Windows Defender's event logging rate. This activity is significant because altering the ThrottleDetectionEventsRate can reduce the frequency of logged detection events, potentially masking malicious activities. If confirmed malicious, this could allow an attacker to evade detection by decreasing the visibility of security events, thereby hindering incident response and forensic investigations.
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