Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the IIS worker process (w3wp.exe) used by SharePoint loading a specific combination of assemblies (PresentationFramework.dll, System.Xaml.dll, and System.Data.Services.dll). This behavior is indicative of an ExpandedWrapper/XamlServices.Parse() insecure deserialization gadget chain, typically associated with the exploitation of vulnerabilities like CVE-2026-65660, which enables fileless in-memory code execution.
Detects instances where the SharePoint IIS worker process (w3wp.exe) initiates command interpreters or known living-off-the-land binaries (LOLBins). This behavior is characteristic of post-exploitation activity, such as command execution following successful exploitation of SharePoint vulnerabilities involving insecure deserialization or malicious directive injection.
Detects evidence of a SharePoint pre-authentication RCE exploit chain where an adversary injects a malicious Namespace containing an ExpandedWrapper-wrapped XamlServices payload (e.g., ObjectDataProvider or LosFormatter gadget) into the w3wp.exe worker process. This specifically looks for command-line arguments indicative of deserialization-based exploit attempts targeting SharePoint web server components.
Detects potential exploitation of CVE-2025-3248 in Langflow by identifying suspicious inbound network traffic targeting the /api/v1/validate/code endpoint, correlated with subsequent python child processes containing base64 decoding and execution primitives such as eval, exec, or subprocess.
This rule detects reconnaissance activity targeting Azure App Service instances, specifically looking for attempts to access web-shell-like files, WordPress administration paths, PHP-CGI endpoints, or LangFlow code validation paths. It identifies potential Storm-3168 actor infrastructure through known IOCs or through patterns of high-volume, path-diverse HTTP requests that deviate from typical noise, helping to distinguish targeted probing from common internet background scanning.
Detects Microsoft Exchange Control Panel (ECP) worker process (w3wp.exe) spawning suspicious child processes (e.g., cmd.exe, powershell.exe, mshta.exe) that are commonly associated with the exploitation of CVE-2020-0688. This vulnerability involves unsafe deserialization within the Exchange ECP ViewState handling, which allows an attacker to execute arbitrary code with SYSTEM privileges.
Detects network activity (TCP, DNS, TLS, HTTP) associated with the UNC6240 threat actor's infrastructure, specifically targeting communications with known malicious IP addresses and domains used in a campaign leveraging PeopleSoft-related lures.
Detects network activity (TCP, DNS, TLS, HTTP) associated with the UNC6240 threat actor's infrastructure, specifically targeting communications with known malicious IP addresses and domains used in a campaign leveraging PeopleSoft-related lures.
Detects outbound network connections to specific IOCs associated with UTA0565 threat activity, including the use of an exploit-loader path (/config.html) on impersonated decoy sites.
Detects high-frequency anonymous comment submissions to 'wp-comments-post.php' from a single IP address within a 10-minute window, characterized by minimal variations in User-Agent. This behavior is indicative of an automated script attempting to bypass comment moderation settings, potentially exploiting known vulnerabilities (e.g., CVE-2026-93485) to inject content without administrative approval.
Detects high-frequency anonymous comment submissions to 'wp-comments-post.php' from a single IP address within a 10-minute window, characterized by minimal variations in User-Agent. This behavior is indicative of an automated script attempting to bypass comment moderation settings, potentially exploiting known vulnerabilities (e.g., CVE-2026-93485) to inject content without administrative approval.
Detects anomalous patterns associated with potential WordPress comment moderation bypass. The rule identifies suspicious rapid sequences of comment submissions, use of unapproved comment preview endpoints with moderation hashes, or reuse of approved-commenter cookies. These behaviors can be indicative of an attacker attempting to preview or force-render stored XSS payloads to administrators or visitors before the comment has been officially approved.
Detects anomalous patterns associated with potential WordPress comment moderation bypass. The rule identifies suspicious rapid sequences of comment submissions, use of unapproved comment preview endpoints with moderation hashes, or reuse of approved-commenter cookies. These behaviors can be indicative of an attacker attempting to preview or force-render stored XSS payloads to administrators or visitors before the comment has been officially approved.
Detects anomalous patterns associated with potential WordPress comment moderation bypass. The rule identifies suspicious rapid sequences of comment submissions, use of unapproved comment preview endpoints with moderation hashes, or reuse of approved-commenter cookies. These behaviors can be indicative of an attacker attempting to preview or force-render stored XSS payloads to administrators or visitors before the comment has been officially approved.
Detects anomalous patterns associated with potential WordPress comment moderation bypass. The rule identifies suspicious rapid sequences of comment submissions, use of unapproved comment preview endpoints with moderation hashes, or reuse of approved-commenter cookies. These behaviors can be indicative of an attacker attempting to preview or force-render stored XSS payloads to administrators or visitors before the comment has been officially approved.
Detects potential zero-click administrator session hijacking by correlating a logged-in administrator accessing a page containing user-generated content (e.g., comments) followed immediately by a sensitive administrative action (e.g., plugin installation, user creation) within a 5-second window, suggesting automated script execution via an autofocus/onfocus handler triggered by the admin's browser.
Detects execution of common administrative and potentially malicious processes originating from the Microsoft Exchange Server worker process (w3wp.exe). This pattern is indicative of a web shell or post-exploitation activity where an attacker has achieved code execution on an Exchange server.
This rule monitors for suspicious process execution (e.g., cmd, powershell) spawned from PaperCut service processes (pc-app.exe, tomcat.exe) followed by a Domain Admin group membership change on the same device within a 30-minute window. This behavior is indicative of privilege escalation attempts following the exploitation of PaperCut vulnerabilities (CVE-2026-81578/CVE-2026-82078).
Detects Microsoft Exchange Control Panel (ECP) worker process (w3wp.exe) spawning suspicious child processes (e.g., cmd.exe, powershell.exe, mshta.exe) that are commonly associated with the exploitation of CVE-2020-0688. This vulnerability involves unsafe deserialization within the Exchange ECP ViewState handling, which allows an attacker to execute arbitrary code with SYSTEM privileges.
This rule detects potentially malicious child processes (cmd.exe or powershell.exe) spawned by PaperCut application processes (pc-app.exe, PCClient.exe, or java.exe), which may indicate exploitation attempts such as RCE following an authentication bypass.
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.
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