Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

4,466 detections

Detects Microsoft SQL Server (sqlservr.exe or mssql.exe) spawning common administrative or potentially malicious utilities (e.g., cmd.exe, powershell.exe, curl.exe, etc.). This behavior is often indicative of unauthorized code execution or lateral movement originating from the database engine, which should not typically initiate these processes.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
002
Detects the SQL Server process (sqlservr.exe) spawning suspicious child processes often associated with reconnaissance or command execution, such as command shell, PowerShell, or network diagnostic utilities. This is a common technique used by adversaries to execute commands or perform post-exploitation activities via database services.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
302
Detects the Windows Package Manager (winget.exe) spawning the ConfigurationRemotingServer.exe process. This behavior, observed when using the 'winget configure' command, may indicate the execution of embedded PowerShell DSC scripts that can be used to maliciously configure a machine.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
002
Detects instances where the Microsoft SQL Server process (sqlservr.exe) spawns suspicious child processes such as command shells, scripting engines, or administrative tools. This behavior is often indicative of remote code execution exploitation or post-exploitation activities following initial access on a database server.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
002
Detects instances where the Windows Subsystem for Linux (WSL) process spawns a Windows command shell (cmd.exe) or PowerShell (powershell.exe). This pattern is often used to execute native Windows commands from within a Linux environment, potentially as a technique for stealthy command execution or to bypass traditional Windows-based monitoring and security controls.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
502
Detects the execution of PowerShell via WScript or CScript (ActiveX Scripting hosts) where the PowerShell command line includes suspicious arguments typically used for obfuscation, bypassing security policies, or launching payloads from the ProgramData directory.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
002
Detects the execution of PowerShell via wscript.exe or cscript.exe, often indicative of malicious VBScript or JScript files executing obfuscated or hidden payloads. The rule checks for specific PowerShell arguments (e.g., -windowstyle hidden, -noni, -decode) or references to the ProgramData directory in the command line.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
002
Detects the Red Lamassu batch script dropper (1.bat) leveraging PowerShell with hidden window styles to download malicious JFMBackdoor components (flt.bin, FLTLIB.dll, scr.mui, fltMC.exe) into temporary directories from known actor-controlled infrastructure (23.27.201.160).
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
002
Detects execution of 'netstat.exe' with specific flags ('-a', '-n', '-o', or '-b') initiated by command-line interpreters like cmd.exe, powershell.exe, wscript.exe, or cscript.exe. These flags are commonly used for network reconnaissance and discovery of active TCP connections, listening ports, and associated process IDs.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
003
Detects the execution of PowerShell or pwsh processes launched by wscript or cscript, using hidden window flags and certutil -decode arguments, specifically targeting scripts located in the ProgramData directory. This pattern is frequently observed in malicious file stagers and payload deobfuscation.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
002
This rule detects potentially suspicious process activity where unknown or infrequently seen processes spawn common script interpreters such as cmd.exe, powershell.exe, wscript.exe, or others. This behavior often indicates an attempt to execute malicious commands or scripts as part of a post-exploitation or persistence mechanism.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
002
Detects the spawning of administrative command-line utilities (cmd.exe, powershell.exe, wscript.exe, certutil.exe, mshta.exe) from processes related to Wyse Management Suite (WMS), Tomcat, or Java. This pattern is often indicative of exploitation of web applications or management services to gain command-line access on the underlying system.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
Monitors IIS web servers for signs of potential exploitation by tracking suspicious child processes spawned by worker processes (w3wp.exe/iisexpress.exe), tracking unexpected WER (Windows Error Reporting) crashes associated with IIS workers, aggregating IIS-related application crashes, and detecting anomalous W3C IIS log request patterns (e.g., malformed content-length, negative bytes, or suspicious URI characteristics).
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
107
Detects the execution of PowerShell with encoded commands that include signs of web-based downloads or unusually long payloads, which are often used to hide malicious scripts or execute stagers. The rule filters out trusted signers and common administrative management tools to reduce noise.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
102
Detects instances where common Microsoft Office applications (Word, Excel, PowerPoint, Outlook) launch suspicious child processes often associated with malicious command execution, such as command shells, scripting interpreters, or system utilities.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
103
Detects post-compromise Active Directory reconnaissance activities using net.exe or wmic.exe to enumerate domain users, groups, computers, and sessions. The rule identifies anomalous behavior by monitoring for at least 3 distinct reconnaissance categories triggered by common scripting interpreters (PowerShell, cmd, pythonw, or node.exe) within a 5-minute window.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
003
Detects the use of PowerShell commands that reflectively load .NET assemblies into memory using 'Reflection.Assembly::Load' or 'Assembly.Load'. This technique is frequently utilized by malicious scripts and fileless malware to execute code directly in memory, bypassing traditional disk-based detection mechanisms.
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Duo Tech@duotech
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Detections.ai Community
4 months ago
101
Detects SMB traffic patterns containing commands indicative of file obfuscation or permission tampering, specifically the use of 'attrib' to set hidden or system attributes, 'icacls' to deny access to files, or PowerShell execution with the '-WindowStyle Hidden' argument.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
002
Detects attempts to stop or disable critical security, backup, and logging services on Windows systems using command-line utilities (net.exe, sc.exe) or PowerShell. Adversaries frequently perform these actions to impair defensive monitoring, bypass security controls, or prepare the system for destructive activities like ransomware deployment.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
002
This rule detects the execution of common scripting interpreters (powershell.exe, wscript.exe, cscript.exe, mshta.exe) where the command line arguments contain domains associated with the Dropbox API. This behavior is indicative of potential data exfiltration or the downloading of malicious payloads via a legitimate cloud storage service, a common technique for bypassing network filters and security controls.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
106
Detects instances where rundll32.exe is spawned by PowerShell.exe, specifically targeting patterns often associated with malware downloaders and stage-two payload execution. The rule filters out common system DLLs and legitimate rundll32 usage to reduce noise.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
106
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