Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Certain strings in the uri_query field when combined with null referer and null user agent can indicate activity associated with the webshell ReGeorg.
Detects common commands used in Windows webshells
Detects XSS attempts injected via GET requests in access logs
Detects outbound HTTP POST requests to the LeakyStealer C2 server 'everstead.group' using a specific user-agent and URI paths.
ET WEB_SPECIFIC_APPS VMware Workspace ONE Access OAuth2TokenResourceController ACS Authentication Bypass (CVE-2022-22956)
ET WEB_SPECIFIC_APPS Oracle E-Business Suite (EBS) Authentication Bypass (SyncServlet) (CVE-2025-61882)
ET MOBILE_MALWARE Android/TrickMo.Banker POST Request
ET WEB_SPECIFIC_APPS Adobe ColdFusion Unauthenticated Remote Code Execution (CVE-2023-29300)
This rule detects attempts to exploit an insecure deserialization vulnerability (CVE-2025-53690) in Sitecore Experience Platform via exposed ASP.NET MachineKeys. It specifically looks for HTTP POST requests to '/sitecore/blocked.aspx' containing a '__VIEWSTATE' parameter with a highly encoded string, indicative of a crafted ViewState payload used in deserialization attacks.
ET WEB_SPECIFIC_APPS Oracle E-Business Suite (EBS) Template Manager Template Copy (CVE-2025-61882)
This rule detects an attempt to exploit a critical vulnerability (CVE-2025-31324) in SAP NetWeaver Visual Composer's Metadata Uploader. The exploit leverages unauthenticated HTTP GET or HEAD requests to the '/developmentserver/metadatauploader' URI, combined with specific characters in the URI parameters (semicolon, dollar sign, backtick, pipe, or their URL-encoded equivalents) that indicate an attempt to execute arbitrary commands. This vulnerability allows an unauthenticated attacker to achieve remote command execution on the affected SAP system.
ET WEB_SPECIFIC_APPS Oracle E-Business Suite (EBS) Unauthenticated Template Manager Template Preview (CVE-2025-61882)
ET WEB_SPECIFIC_APPS Oracle E-Business Suite (EBS) Template Manager Template File Add (CVE-2025-61882)
Detects HTTP POST requests to F5 BIG-IP management or shared endpoints that contain long, base64-encoded payloads. Threat actors may use this technique to upload webshells or stage data for exfiltration.
ET MALWARE LeakyStealer CnC Checkin
This rule detects an attempted exploitation of an insecure deserialization vulnerability (CVE-2025-10035) in Fortra GoAnywhere MFT. Specifically, it looks for HTTP POST requests to the '/goanywhere/lic/accept/' URI containing the string 'bundle=' in the request body, which is indicative of an attempt to trigger the vulnerability.
This rule detects HTTP POST requests to github.com's /login/device/code endpoint that contain a 'client_id=' in the request body. This pattern is indicative of a device code authentication flow, which could be leveraged in phishing attacks (device code phishing) to steal application access tokens.
This rule detects HTTP requests to the '.well-known/' directory that include common webshell file extensions (php, cfm, cgi, asp, aspx, jsp, rb, sh, py, pl). This activity is suspicious as the '.well-known/' directory is typically used for standardized metadata files (e.g., for ACME challenges, security.txt) and not for executable scripts. The rule specifically excludes requests from 'Let's Encrypt validation server' to reduce false positives.
This rule detects attempts to retrieve PowerShell scripts (.ps1) from an external server using WebDAV (PROPFIND method) with a 'Microsoft-WebDAV-MiniRedir/' user agent. This activity is often associated with adversaries attempting to transfer tools or malicious scripts into a compromised environment.
This rule detects attempts to exploit CVE-2021-20021, an unauthenticated arbitrary user creation vulnerability in SonicWall Email Security. The rule specifically looks for HTTP POST requests to the '/createou' URI with 'data=' in the request body, indicating an attempt to create a new organizational unit or user.
ET MOBILE_MALWARE Android/TrickMo.Banker GET Config Request
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