Detections

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

20,483 detections

A detection triggered on endpoint events where common system binaries (e.g., mshta.exe, powershell.exe, cmd.exe) were launched by user-facing parent processes (explorer.exe, chrome.exe, msedge.exe, firefox.exe, iexplore.exe) and executed suspicious command-lines. The pattern matches the evolving technique used in ClickFix-style campaigns whereby malicious pages dynamically place payloads into the clipboard and prompt users to paste or execute them.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
Detects suspicious payload execution or unexpected child processes spawning directly from the IIS worker process (w3wp.exe), which is a common indicator of web shell activity or exploit payload execution on vulnerable IIS instances.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
Detects RuntimeHost.exe launched from an unusual cache directory frequently associated with malware staging and cryptomining activity.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
Identifies 'forfiles.exe' being executed with a combination of multiple command-line switches ('/c', '/p', '/m' or their hyphenated equivalents). This pattern can indicate automated scripting or malicious Living-off-the-Land activity, where 'forfiles.exe' is used to execute commands on multiple files or in specific directories.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
Detects the execution of mshta.exe with command-line arguments that indicate the execution of JavaScript or VBScript code, often used for malicious purposes such as bypassing application whitelisting or executing remote code.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
202
Detects the execution of cmstp.exe with the '/s' flag, which indicates a silent installation. This behavior is often abused by adversaries to proxy execution of malicious code, bypass application control, or bypass User Account Control (UAC).
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
This rule detects potential data poisoning attacks targeting machine learning models by monitoring Windows Security Event ID 4688 (a process was created) for command-line activity containing keywords indicative of model training or dataset modification, combined with terms suggesting malicious intent like 'corrupted', 'poison', or 'injection'. It aims to identify attempts to manipulate or compromise ML models through their training data.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
502
This rule detects potential lateral movement activities by monitoring for the execution of 'psexec', 'wmiexec', or 'schtasks' commands within a short timeframe on the same computer. A count of 2 or more such command executions within an hour is flagged as suspicious, indicating potential adversary activity.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
202
This rule detects suspicious process creations where common system processes (svchost.exe, explorer.exe, lsass.exe, winlogon.exe) act as parent processes for scripting or command-line interpreters (powershell.exe, cmd.exe, cscript.exe, wscript.exe) and the child process runs with a low or untrusted integrity level. This pattern can indicate process injection or other forms of malicious execution where an attacker attempts to hide their activity by masquerading as legitimate system processes.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
This rule detects suspicious execution of rundll32.exe by looking for multiple instances of rundll32.exe executing with command lines containing both '.dll' and '/' characters from the same computer and account. This pattern can indicate an adversary attempting to proxy execution of malicious code via rundll32.exe.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
Detects suspicious process execution patterns involving PowerShell with encoded commands or CMD with command execution flags. The rule looks for multiple occurrences of these patterns from the same computer and account within a one-hour window, which could indicate malicious activity such as script execution or obfuscated command execution.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
This rule detects suspicious command-line obfuscation techniques by monitoring process creation events (EventID 4688) for specific patterns in the command line. It looks for the use of environment variables like %TEMP% or %SystemRoot%, the `${env:` syntax, and nested `cmd /c "cmd /c"` calls. These patterns are often used by adversaries to hide the true nature of executed commands, evade detection, or bypass security controls. The rule triggers if three or more such events are observed from the same computer and account within a one-hour window.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
This rule detects when a process's command line contains 'ssl' or 'tls' and is observed at least 3 times within an hour on the same computer and by the same account. This could indicate various activities, including legitimate system processes, development activities, or potentially malicious use of SSL/TLS-related tools or scripts. The rule focuses on process creation events (EventID 4688) and analyzes the command line arguments.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
This rule detects the execution of processes where the command line contains keywords commonly associated with malware, specifically 'backdoor', 'rootkit', or 'trojan'. It monitors Windows Security Event ID 4688 (a process creation event) and flags any command lines containing these terms.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
This rule detects attempts to delete Volume Shadow Copies (VSS) using native Windows utilities such as vssadmin, WMIC, or PowerShell. Attackers commonly perform this action to inhibit system recovery and prevent the restoration of data, often as a precursor or during the impact phase of ransomware attacks.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
102
Detects the use of wmic.exe to execute remote commands using the /node flag and the 'process call create' command string. This pattern is commonly used by adversaries for lateral movement and remote code execution.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
102
Detects the execution of Microsoft Application Virtualization Injector (mavinject.exe) with the '/injectrunning' command-line argument. This utility is frequently abused by adversaries to inject malicious DLLs into target processes, facilitating arbitrary code execution while potentially bypassing security detections due to the binary's legitimate provenance.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
Detects instances where Microsoft Teams (teams.exe) initiates child processes that are commonly used as interpreters, such as cmd.exe, powershell.exe, mshta.exe, wscript.exe, or rundll32.exe. This activity is frequently associated with the execution of malicious payloads delivered via phishing or collaboration platforms.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
Detects the execution of 'runas.exe' with the '/savecred' or '/netonly' parameters. The '/savecred' parameter allows the use of credentials previously stored in the credential manager, while '/netonly' allows the use of credentials for remote network resources without authenticating locally. Both flags can be abused by adversaries to persist or move laterally with compromised or cached credentials while evading local authentication monitoring. The rule excludes common system-signed processes originating from the Windows System32 directory.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
002
Detects a cluster of common discovery commands (e.g., ipconfig, whoami, net group) being executed within a short 60-second window, suggesting automated enumeration behavior by an adversary.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
002
This rule detects the creation of a Windows service where the service type is set to 'kernel' via the sc.exe command-line utility. This behavior is indicative of an attempt to load a kernel driver or perform low-level system modifications, which is often used by rootkits or malicious drivers. The rule filters out known trusted publishers to reduce noise.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
002
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