Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
40,056 detections
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Detects processes registering a Vectored Exception Handler (VEH) while simultaneously performing memory write operations and thread context modifications. This behavior is highly indicative of advanced process injection techniques, such as using VEH as a redirection mechanism to execute raw syscalls or malicious shellcode within a target process.
Detects indicators of the MovieReaper loader, specifically the downloading of shellcode fragments disguised as image assets from known malicious C2 infrastructure, and the masquerading of a malicious binary as 'msedge.exe' within the Windows Telemetry folder for persistence. The rule specifically targets the loader's behavior of using PEB Ldr traversal to resolve APIs and evade hooking-based security controls.
Detects the HEAVYGRAM malware utilizing the Telegram Bot API to download file attachments, followed by the extraction of an archive using PowerShell to a masqueraded directory (C:\ProgramData\Kee_Pass), and the subsequent execution of a binary masquerading as KeePass.exe.
Detects suspected exploitation of CVE-2026-81963, an Elevation of Privilege vulnerability in the Windows Update stack. The rule monitors for the creation of reparse points, junctions, or symbolic links within update staging paths by Windows Update processes, followed by either the spawning of suspicious child processes or unauthorized file writes/renames outside of expected directories, which are indicative of a privileged link-following exploit.
This rule detects the use of the VS Code command line interface to install extensions, specifically by monitoring for the 'workbench.extensions.installExtension' command. This activity can be indicative of automated installation of extensions, which could be used for malicious purposes or persistence if an attacker installs a malicious extension.
Detects instances where a Visual Studio Code (VS Code) extension host process launches potentially suspicious child processes, specifically command-line tools like cmd.exe, powershell.exe, or calc.exe, within 30 seconds of the extension host starting.
This rule detects the use of the VS Code command line interface to install extensions, specifically by monitoring for the 'workbench.extensions.installExtension' command. This activity can be indicative of automated installation of extensions, which could be used for malicious purposes or persistence if an attacker installs a malicious extension.
Detects unauthorized attempts to dump the process memory of the Local Security Authority Subsystem Service (LSASS), a common technique used by attackers to harvest credentials from memory. This includes the use of legitimate diagnostic tools like procdump and comsvcs.dll, as well as the identification of resulting dump files in directory paths associated with LSASS.
Detects execution and file activity associated with the XRed backdoor, which masquerades as 'Synaptics.exe' by running from the non-standard 'C:\ProgramData\Synaptics\' directory instead of authorized system paths.
This rule detects suspicious command executions (e.g., whoami, downloadstring, iex, registry modifications) initiated by processes associated with the CrowdStrike Falcon agent. It also correlates these executions with the loading of unsigned or unverifiable DLLs by the same Falcon processes within a 5-minute window, which may indicate attempts to tamper with or masquerade as the security agent.
Detects HEAVYGRAM/CRUDEEXCLUDE persistence via Run-key registry writes or reg.exe command-line adds, scoped to payloads staged in AppData/ProgramData/Temp/Public/Downloads and excluding legitimate Program Files/System32 targets to reduce false positives from normal software autorun entries.
This rule detects DNS queries and network connections to a curated list of domains identified as malicious. It correlates events from DNS logs and device network logs to identify potential command-and-control (C2) or malicious infrastructure interaction.
This rule detects potential execution of malicious files from removable media (e.g., USB drives). It monitors for a sequence of events where a removable drive is mounted, a file is subsequently created on that drive, and then that same file is executed within a short time window.
This rule detects potential execution of malicious files from removable media (e.g., USB drives). It monitors for a sequence of events where a removable drive is mounted, a file is subsequently created on that drive, and then that same file is executed within a short time window.
Detects uncommon or suspicious child processes spawning from a WSL process. This could indicate an attempt to evade parent/child relationship detections or persistence attempts via cron using WSL.
Detects uncommon or suspicious child processes spawning from a WSL process. This could indicate an attempt to evade parent/child relationship detections or persistence attempts via cron using WSL.
Detects outbound network connections over TCP port 445 directed toward common internal IP address ranges (RFC 1918) by processes other than standard system binaries. This pattern is characteristic of SMB network scanning or lateral movement activities, such as those used by the DragonForce locker ransomware to discover target hosts within a network.
Detects the execution of AADInternals PowerShell toolkit commands. AADInternals is a known framework used for administration, enumeration, and exploitation of Azure Active Directory and Microsoft Entra ID, including the creation of backdoors and manipulation of federation settings.
This rule detects the installation of Windows services that utilize names or display names commonly associated with known malware, potentially mimicking legitimate system services to maintain persistence or evade detection.
This rule monitors for outbound network connections to domains and IP addresses associated with known phishing, loader, and C2 infrastructure, including specific ClickFix patterns.
Detects the execution of known malicious files associated with the BlueDelta threat group, specifically the HOOKEDGE and HEADLACE malware families, using a curated list of SHA-256 file hashes. Additionally, the rule monitors for the execution of scripts with GUID-based filenames, a common tactic for temporal or staged file deployment.
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