Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects unauthenticated attempts to exploit CVE-2025-3248 in the Langflow 'validate/code' endpoint, characterized by missing authentication headers and the presence of suspicious Base64-encoded payloads or command execution keywords. Additionally, it identifies potential post-exploitation activity where Langflow processes spawn Python subprocesses.
Detects instances where PowerShell is executed with an explorer.exe parent process, but the actual creating process differs from explorer.exe. This behavior is indicative of parent PID (PPID) spoofing, a technique often used to evade detection or masquerade the execution source by abusing the PROC_THREAD_ATTRIBUTE_PARENT_PROCESS flag in the Windows API.
Detects execution of PowerShell or Command Prompt where the command line contains obfuscated indicators or specific suspicious files and IP addresses, while simultaneously bypassing the execution policy. This is characteristic of malicious script execution or payload delivery attempts.
Detects the execution of DahuaConsole processes that are spawned by or associated with the scannerdahua utility. This pattern is often associated with discovery or exploitation activities targeting Dahua devices.
This rule detects attempts by a process (specifically targeting PowerShell or .NET loaders) to tamper with Windows Antimalware Scan Interface (AMSI) components in memory. It correlates EDR or Sysmon events (process access, module loads) targeting 'amsi.dll' or involving specific AMSI API strings like 'AmsiScanBuffer' or 'AmsiInitFailed' with potential malicious loader activity.
Detects a suspicious execution chain where WScript.exe initiates a process with '--headless' arguments, which in turn spawns a PowerShell process with hidden, encoded, and non-interactive command line flags. This pattern is commonly used by adversaries to execute malicious scripts while attempting to evade detection and user interaction.
Detects the execution of JavaScript files using wscript.exe from user-writable directories (e.g., Temp, Downloads, AppData) that exhibit high levels of obfuscation. The rule specifically flags scripts containing a high ratio of comment lines to code, a technique often used in the LausivLoader malware family to mask malicious payloads constructed using String.fromCharCode.
This rule detects the execution of NetSupport Manager related files, specifically 'client32.exe', or the presence of 'NetSupport' or 'Manager.zip' in command lines. NetSupport is a legitimate remote administration tool that is frequently abused by adversaries to maintain persistence and remote control over compromised hosts.
This rule detects unauthorized memory modification of ntdll.dll, specifically targeting the EtwEventWrite function, by identifying processes writing to memory regions with execution-permission flags (e.g., PAGE_EXECUTE_READWRITE). This behavior is characteristic of adversaries attempting to blind Event Tracing for Windows (ETW) telemetry, often following suspicious .NET assembly loading (such as Assembly.Load) typical of malware loaders like LausivLoader.
This rule detects the use of PowerShell to download a specific payload associated with the RustyShade malware from a Backblaze B2 cloud storage bucket. It monitors command lines containing 'wget' or 'Invoke-WebRequest' targeting 'f005.backblazeb2.com' and files named 'DriverInstaller.zip'.
Detects instances where the process 'UBPUpdater.Exe' spawns a process or command line utilizing 'UBPPatch.Psh'. The rule highlights that 'UBPPatch.Psh' is masquerading as a non-executable PowerShell script while likely operating as a malicious binary or PowerShell executable.
Detects instances where Windows Explorer (explorer.exe) spawns cmd.exe or wscript.exe to execute batch files (.bat) or scripts with specific filenames. This behavior is often associated with malicious user activity, such as executing payloads disguised as innocuous files triggered via shell interactions.
Detects the ClosedQuorum 'unhook' evasion technique where a process patches ntdll's EtwEventWrite to suppress ETW telemetry, occurring within a 5-minute window of the same process initiating outbound network connections to known LLM C2 provider APIs or Discord webhooks used for AI-arbitrated decision cycles.
Detects the ClosedQuorum 'unhook' evasion technique where a process patches ntdll's EtwEventWrite to suppress ETW telemetry, occurring within a 5-minute window of the same process initiating outbound network connections to known LLM C2 provider APIs or Discord webhooks used for AI-arbitrated decision cycles.
This rule detects instances where the Terraform CLI tool connects to suspected lookalike domains associated with supply chain compromise attempts (e.g., hashicorp-aws[.]com or hashicorp-terraform[.]io) during common initialization or application workflows. It correlates process execution with network connection logs and optionally validates the presence of a related .terraform.lock.hcl file associated with the malicious origin.
This rule detects instances where the Terraform CLI tool connects to suspected lookalike domains associated with supply chain compromise attempts (e.g., hashicorp-aws[.]com or hashicorp-terraform[.]io) during common initialization or application workflows. It correlates process execution with network connection logs and optionally validates the presence of a related .terraform.lock.hcl file associated with the malicious origin.
This rule detects potentially malicious activity where a Python-based process or a PyInstaller-compiled executable invokes a command shell (cmd.exe, powershell.exe) or command execution via 'os.popen', followed by a network connection to 'api.telegram.org' within a 60-second window. This behavior is often characteristic of malware or tools using Telegram's API as a command-and-control (C2) channel or for data exfiltration.
Detects instances where web server or application-related processes (pc-app, java, pc-tomcat, PCClient) spawn command shell interpreters (cmd, powershell, pwsh). This behavior is often indicative of exploitation of a web application vulnerability, such as remote code execution.
Detects unauthorized child processes spawned by ScreenConnect client binaries. The rule specifically looks for files created or modified within 60 seconds prior to execution, which is indicative of attackers leveraging an authentication bypass vulnerability (CVE-2026-84869) to transfer and execute malicious payloads via an active remote access session without requiring additional user interaction or authentication.
Detects the execution of PowerShell with hidden window style and long Base64 or encoded command strings, which is a common technique used by attackers to execute obfuscated malicious scripts while minimizing visibility on the endpoint.
This rule identifies potential network scanning or propagation activity by detecting a single host initiating SMB (TCP 445) connections to a high number (more than 20) of unique destination IP addresses within a given timeframe. This behavior is often indicative of internal reconnaissance, lateral movement, or worm-like propagation.
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