Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects potential misuse of AI agentic frameworks (e.g., Semantic Kernel) where the host process executes destructive commands (e.g., file deletion, wiping, shadow copy deletion) or performs large-scale file deletion, which may indicate unauthorized tool invocation or compromised AI agents.
Detects a potential AI agent data poisoning event where a file is downloaded from an untrusted source (browser or sync client) and subsequently read within one hour by a process associated with AI agent activity (e.g., semantic_kernel, SKAgent). This pattern is often used to inject malicious context or prompt injection vectors into RAG (Retrieval-Augmented Generation) systems.
Detects common runtime processes (Node.js, npx, Python) often used for Model Context Protocol (MCP) servers accessing sensitive local credential files such as AWS credentials, SSH private keys, or environment files. This behavior is indicative of potential credential harvesting by unauthorized MCP servers in developer environments.
Detects instances where AI agent host processes (such as Python, .NET, or IIS worker processes) spawn suspicious child processes like command interpreters or common system utilities. This behavior is indicative of potential Remote Code Execution (RCE) via prompt injection, where an AI agent is manipulated into executing arbitrary system commands.
Detects persistence and execution abuse within hidden IDE/AI assistant workspace directories (e.g., .vscode, .cursor, .claude). The rule monitors for the creation or modification of configuration files used for automated task execution and identifies process execution patterns originating from these directories that invoke downloaders (curl, wget) or decoders (base64) to fetch or execute payloads.
Detects suspicious process command lines that access sensitive cryptocurrency wallet data files or registry keys associated with wallet applications, which is a common behavior of information-stealing malware.
Detects the execution of a renamed DISM binary (index.exe) that subsequently loads a specific DLL (DismCore.dll), which is a common technique used for DLL side-loading to evade security controls by masquerading as a legitimate system utility.
Detects the presence of configuration markers associated with cryptocurrency clipboard-swapping malware. The rule monitors process command lines for specific flags (e.g., 'cclipper', 'clipboard_check_delay') and cryptocurrency wallet address dictionary keys, which are common indicators of malicious software designed to replace legitimate destination wallet addresses copied to the clipboard with attacker-controlled addresses.
Detects the clearing of Windows Security Event Logs (EventID 1102) within 15 minutes of a successful user logon (EventID 4624) on the same host. This activity is a common anti-forensics technique used by adversaries to hide malicious actions following an authenticated session.
Detects unauthorized creation, modification, or deletion of Group Policy Objects (GPOs) at the Active Directory domain root. This activity is a high-confidence indicator of potential persistence or domain-wide configuration tampering, often observed during ransomware attacks or privilege escalation attempts where attackers weaponize Group Policy.
This rule detects modification of the Windows Registry to disable the Windows Firewall. Specifically, it monitors for EventID 4657 (A registry value was modified) where the 'EnableFirewall' value is set to '0' within the FirewallPolicy service registry path, indicating an attempt to disable the host-based firewall.
Detects the installation of a specific malicious Firefox browser extension identified by its unique internal ID 'pdf-para-texto@extensao.local' or by its name 'PDF Identity Verifier'. This behavior is characteristic of adversaries using browser extensions for persistence or credential theft.
Detects the WMI provider host (wmiprvse.exe) spawning common living-off-the-land binaries often associated with command execution or lateral movement.
Detects the creation of scheduled tasks using the 'schtasks.exe' utility where the command line contains suspicious patterns such as execution of common scripting engines (PowerShell, wscript, cscript), use of common staging directories (temp, appdata, programdata), or naming conventions that mimic legitimate Windows system tasks.
Detects potential lateral movement by identifying NTLM authentication (Logon Type 3) to administrative network shares (ADMIN$, C$, IPC$) or high-frequency access to multiple hosts by the same user, which may indicate credential abuse or lateral movement attempts.
This rule detects instances of Kerberos Ticket-Granting Ticket (TGT) requests (Event IDs 4768 and 4769) that utilize the legacy RC4 encryption type (0x17). In modern Active Directory environments where AES is the standard for Kerberos, the use of RC4 can be a strong indicator of a Golden Ticket attack or other unauthorized ticket forging activities, as adversaries often force a downgrade to RC4 for easier offline cracking.
Detects Microsoft Windows Event ID 4662 (Object Access) where specific GUIDs associated with sensitive Active Directory rights (specifically, those related to DCSync or sensitive extended rights) are accessed. The rule filters out events originating from Domain Controllers to identify potentially anomalous access patterns from non-DC endpoints.
Detects the loading of common Windows system DLLs (e.g., version.dll, dbghelp.dll) from suspicious, non-standard directory paths. Such behavior is often indicative of DLL side-loading or hijacking attempts, where an adversary places a malicious DLL with the same name as a legitimate one in a writable directory to influence application execution.
Detects the use of native Windows binaries such as vssadmin.exe, wmic.exe, bcdedit.exe, and wbadmin.exe to inhibit system recovery by deleting shadow copies, clearing backup catalogs, or disabling automatic system recovery.
Detects the use of BITSAdmin or PowerShell 'Start-BitsTransfer' to download files from non-reputable/non-Microsoft sources to suspicious directories such as Temp, AppData, or ProgramData, which is a common technique for ingress tool transfer during malware delivery.
Detects the use of BITSAdmin or PowerShell 'Start-BitsTransfer' to download files from non-reputable/non-Microsoft sources to suspicious directories such as Temp, AppData, or ProgramData, which is a common technique for ingress tool transfer during malware delivery.
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