Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
2,521 detections
Filters
Last updated
All Time
Detection languages
1,049
575
259
163
130
Contributors
536
485
323
178
133
Categories
1,256
974
852
701
406
Platforms
1,929
373
346
244
20
Products / Services
759
507
254
248
210
MITRE Techniques
18,116
15,638
12,587
8,397
6,227
2,521
CVEs
7
5
4
4
4
IDS Classtypes
201
41
5
4
1
IDS Protocols
175
38
21
9
7
Detects a suspicious CertReq execution downloading a file.
This behavior is often used by attackers to download additional payloads or configuration files.
Certreq is a built-in Windows utility used to request and retrieve certificates from a certification authority (CA). However, it can be abused by threat actors for malicious purposes.
This behavior is often used by attackers to download additional payloads or configuration files.
Certreq is a built-in Windows utility used to request and retrieve certificates from a certification authority (CA). However, it can be abused by threat actors for malicious purposes.
The analytic detects the use of `bitsadmin.exe` with the `transfer` or `addfile` parameters to download a remote object. This activity is significant because `bitsadmin.exe` can be exploited to download and execute malicious files without immediate detection. If confirmed malicious, an attacker could use this technique to download and execute payloads, potentially leading to code execution, privilege escalation, or persistent access within the environment. The rule leverages data from Endpoint Detection and Response (EDR) agents, focusing on process and command-line telemetry. Review parallel and child processes, especially `svchost.exe`, for associated artifacts.
The following analytic identifies the use of Living Off the Land Binaries and Scripts (LOLBAS) with network traffic. It leverages data from the Network Traffic data model to detect when native Windows binaries, often abused by adversaries, initiate network connections. This activity is significant as LOLBAS are frequently used to download malicious payloads, enabling lateral movement, command-and-control, or data exfiltration. If confirmed malicious, this behavior could allow attackers to execute arbitrary code, escalate privileges, or maintain persistence within the environment, posing a severe threat to organizational security.
Detects the creation of a scheduled task using `schtasks.exe` that includes `curl` for downloading content and `powershell` for execution within the task's action. This combination is often used by adversaries to establish persistence, download malicious payloads, and execute them without directly dropping malware on the host, facilitating command and control.
Detects the Node Package Manager (npm) or npx spawning child processes commonly used to download remote files. This behavior is often seen in malicious npm packages that use post-install scripts to fetch and execute second-stage payloads, as seen with the AdaptixC2 framework delivery.
Detects execution of processes with image paths starting with WebDAV shares (\\), which might indicate malicious file execution from remote web shares.
Execution of processes from WebDAV shares can be a sign of lateral movement or exploitation attempts, especially if the process is not a known legitimate application.
Exploitation Attempt of vulnerabilities like CVE-2025-33053 also involves executing processes from WebDAV paths.
Execution of processes from WebDAV shares can be a sign of lateral movement or exploitation attempts, especially if the process is not a known legitimate application.
Exploitation Attempt of vulnerabilities like CVE-2025-33053 also involves executing processes from WebDAV paths.
Detects the execution of Chromium-based browsers (Brave, Chrome, MS Edge, Opera, Vivaldi) in headless mode. This behavior can be abused by adversaries for various purposes, including web scraping, automated data exfiltration, or as part of command and control activities, often to avoid displaying a visible browser window to the user.
Detects the execution of Chromium-based browsers (Brave, Chrome, MS Edge, Opera, Vivaldi) in headless mode using the "dump-dom" command-line argument. This technique can be used to download files or extract content from web pages without a visible browser interface, often for malicious purposes like data exfiltration or staging.
Hunts for multi-stage attacker behavior involving executables dropped to user directories, co-located DLL loads, and outbound network connections to Azure cloud domains used as command-and-control infrastructure. This query surfaces advanced adversary tradecraft where payload delivery, code execution, and cloud-based C2 are tightly correlated.
The analytic detects the use of the curl command contacting suspicious remote domains, such as s3.amazonaws.com, which is indicative of Command and Control (C2) activity or downloading further implants. This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on process execution logs and command-line arguments. This activity is significant as it may indicate the presence of MacOS adware or other malicious software attempting to establish persistence or exfiltrate data. If confirmed malicious, this could allow attackers to maintain control over the compromised system and deploy additional payloads.
Detects PowerShell execution with a command line indicative of a download cradle, initiated from the user's shell (explorer.exe). This behavior is characteristic of the "ClickFix" social engineering technique where a user is tricked into copying and running a malicious command from a webpage.
This correlation rule identifies multiple risk events associated with the "Living Off The Land" analytic story. It aggregates and correlates events tagged under this story, focusing on systems with a high count of distinct sources (5 or more). The rule aims to detect suspicious behavior involving the use of legitimate tools for malicious purposes, which could lead to code execution, privilege escalation, or persistence within an environment.
Detects a PowerShell command line pattern used by Snake Keylogger to download and execute a payload. This pattern involves using Invoke-WebRequest to fetch a file and Start-Process to run it, often with parameters to hide the execution window. The rule also looks for execution from a temporary directory, a common malware technique.
This analytic identifies suspicious PowerShell script execution via EventCode 4104 that contains multiple URLs within a function or array. This pattern is often indicative of obfuscated scripts or those attempting to download secondary payloads. Such activity may signal an attempt to execute malicious code, download additional malware, lead to further system compromise, or data exfiltration. Review parallel processes and the full script block for additional context and related artifacts.
This detection identifies potential abuse of SSH ProxyCommand by monitoring for suspicious process execution patterns. Specifically, it looks for instances where ssh.exe (as a parent process) containing "ProxyCommand" in its arguments spawns potentially malicious child processes like mshta, powershell, wscript, or cscript, or processes containing "http" in their command line. This technique can be used by attackers to execute arbitrary commands through SSH proxy configurations, potentially enabling command & control activities or remote code execution. The detection focuses on commonly abused Windows scripting engines and web requests that may indicate malicious activity when spawned through SSH proxy commands.
Detects PowerShell processes executing commands that utilize `Net.WebClient` to download content, indicated by the presence of `new-object`, `net.webclient).`, and `download` keywords in the command line, along with either `string(` or `file(`. This pattern is commonly used by adversaries for ingress tool transfer or to fetch additional malicious payloads.
This rule detects the use of various command-line tools and PowerShell cmdlets that can initiate web requests. These include native Windows PowerShell cmdlets like 'Invoke-RestMethod', 'Invoke-WebRequest', 'Resume-BitsTransfer', 'Start-BitsTransfer', and their aliases ('irm', 'iwr'), as well as common command-line utilities like 'curl' and 'wget', and .NET framework calls such as '[System.Net.WebRequest]::create' and 'WinHttp.WinHttpRequest'. Adversaries often use these methods to download additional tools, malware, or exfiltrate data from a compromised system.
This rule detects the use of various web request commands and cmdlets within PowerShell script block logs. It specifically looks for common methods used to initiate web requests or file transfers, such as `[System.Net.WebRequest]::create`, `curl`, `Invoke-RestMethod`, `Invoke-WebRequest`, `irm`, `iwr`, `Resume-BitsTransfer`, `Start-BitsTransfer`, `wget`, and `WinHttp.WinHttpRequest`. The rule aims to identify suspicious activity where PowerShell is used to download or interact with remote resources, potentially for ingress tool transfer or command and control. A filter is applied to exclude paths starting with 'C:\Packages\Plugins\Microsoft.GuestConfiguration.ConfigurationforWindows\', which are likely legitimate system activities.
This rule detects potential SVG-based phishing attempts originating from Microsoft Outlook. It correlates network access, file downloads, and URL click telemetry to identify instances where Outlook initiates connections to or downloads files ending with '.svg'. This is particularly relevant for detecting phishing campaigns that leverage malicious SVG files to embed JavaScript, redirectors, or Base64-encoded HTML payloads for credential harvesting or other malicious activities.
This analytic detects suspicious downloads from common file sharing and content delivery platforms using known living-off-the-land binaries (LOLBins) such as 'curl.exe', 'certutil.exe', 'msiexec.exe', 'powershell.exe', 'wmic.exe', and others. It leverages Cisco Network Visibility Module logs to correlate network flow activity with process context, including command-line arguments, process path, and parent process information. These tools are often abused by adversaries and malware to retrieve payloads from public hosting platforms such as GitHub, Discord CDN, Transfer.sh, or Pastebin. This detection helps identify potential initial access, payload staging, or command and control activity using legitimate services.
This analytic identifies Office applications spawning child processes that attempt to download content via HTTP/HTTPS. It focuses on process creation events where Office applications (e.g., Word, Excel) initiate network connections, specifically excluding common web browsers. This activity is significant because it often indicates the use of malicious documents to execute living-off-the-land binaries (LOLBins) for payload delivery. If confirmed malicious, this behavior could lead to unauthorized code execution, data exfiltration, or further malware deployment, posing a severe threat to the organization's security.
Page 100 of 121