Arnold Chan
@slazTrusted contributorCompletionist
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7,399 detections
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Detects high-volume internal email campaigns that exhibit characteristics of phishing, specifically utilizing sender display name impersonation of executive or IT support roles, urgent subject lines, and URLs identified as malicious by threat intelligence. The rule tracks common attributes like SPF/DKIM/DMARC failures and rapid delivery to multiple recipients.
No description available.
This rule detects instances where LockAppHost.exe or a variation of it (likely used as a proxy) initiates processes or command-line arguments that interact with Windows services, scheduled tasks, or Windows Defender configurations. This behavior is indicative of an adversary attempting to disable security features, suppress Windows updates, or manipulate system services to evade detection.
No description available.
Detects the execution of cmstp.exe with the /au parameter, which is commonly used to install malicious INF files, when initiated by LockAppHost.exe. This pattern is often indicative of an attempt to bypass application control or achieve privilege escalation by leveraging the legitimate Microsoft Connection Manager Profile Installer.
Detects anomalous registry enumeration or modification activities targeting software uninstallation registry keys (Run/Uninstall). By monitoring for multiple subkey accesses by processes not associated with standard software management tools (like MsiExec or explorer), this rule identifies potential reconnaissance or software discovery patterns indicative of malicious activity.
This rule detects the creation of a scheduled task using 'schtasks.exe' where the task name matches commonly abused names such as 'WinUpdate.exe', 'SoftManager.exe', or 'LockAppHost.exe'. These names are frequently used by adversaries to masquerade as legitimate Windows processes to achieve persistence.
This rule detects the addition of specific suspicious executables to Windows Registry run keys. Adversaries use these keys to achieve persistence, ensuring that malicious programs execute automatically upon user logon.
Detects suspicious executions of 'nslookup.exe' and 'svchost.exe' when triggered by the Windows LockAppHost process. This pattern is indicative of potential process injection or masquerading attempts by malicious actors using legitimate system processes as proxies for unauthorized activity.
This rule detects potential cryptocurrency mining activity where known miner executables (specifically XMRig) or malicious scripts/processes are masquerading as or being spawned by 'LockAppHost.exe' or 'LockAppHost14a02b.exe'. It also monitors for subsequent attempts by these processes to terminate security-related tasks or establish persistence via registry run keys.
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