Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects the use of the Resource Owner Password Credentials (ROPC) authentication flow. ROPC is generally discouraged because it requires applications to directly handle user credentials, increasing the risk of credential compromise. While it can be used for automated testing or legacy applications, its presence in other contexts may indicate a security weakness or an attempt to bypass more secure authentication mechanisms.
Detects suspicious DNS queries to external service interaction domains often used for out-of-band interactions after successful RCE
This rule detects attempts to inject Cross-Site Scripting (XSS) payloads via GET requests in web access logs. It specifically looks for common XSS strings and encoded variations within the request URL, such as '<script>', '<iframe>', '<svg>', 'document.cookie', 'document.domain', 'onerror=', 'onresize=', 'onload=', 'onmouseover=', '${alert', 'javascript:alert', and their URL-encoded forms. The rule filters out requests that result in a 404 HTTP status code to reduce false positives.
Detects an attempt to leverage the vulnerable servlet "mboximport" for an unauthenticated remote command injection in Zimbra Collaboration Suite Email Server, specifically targeting CVE-2022-27925. The rule looks for POST requests to the '/service/extension/backup/mboximport' endpoint with specific query parameters ('account-name', 'ow', 'no-switch', 'append') and then checks for subsequent requests to '/zimbraAdmin/*.jsp' with a 200 status code, indicating potential successful exploitation and web shell access.
Detects errors in NodeJS applications related to process execution, specifically looking for the keyword 'node:child_process'. These errors, especially if triggered by user input, may indicate an attempted Remote Code Execution (RCE) vulnerability exploitation.
This rule detects the creation of new Microsoft Office macro-enabled files. These file types (.docm, .dotm, .xlsm, .xltm, .potm, .pptm) can contain embedded macros, which are often used by adversaries for initial access, persistence, or execution of malicious code. Monitoring their creation can help identify suspicious activity related to macro-enabled document attacks.
Detects a process spawned by the terminal service server process (termsvcs), which could indicate an exploitation attempt of CVE-2019-0708, commonly known as BlueKeep. The rule specifically looks for processes where the parent command line contains both 'svchost.exe' and 'termsvcs', while filtering out legitimate processes like rdpclip.exe, csrss.exe, wininit.exe, and winlogon.exe.
Detects exploitation of the DNS RCE vulnerability (CVE-2020-1350) by monitoring for suspicious sub-processes spawned by the `dns.exe` service. This rule specifically looks for processes created by `dns.exe` that are not common or expected system processes, indicating potential post-exploitation activity after successful exploitation of the vulnerability.
Detects possible successful exploitation of CVE-2021-26858 (ProxyLogon) by monitoring for the creation of non-standard files by the Exchange Server's Unified Messaging service (UMWorkerProcess.exe). This activity could indicate the dropping of web shells or other malicious content post-exploitation.
Detects sign-in attempts with properties (e.g., device, location, browser) that are unusual or unfamiliar compared to a user's past sign-in history. This rule leverages Azure AD Identity Protection's risk detection capabilities to identify anomalous sign-ins.
Detects the spawning of suspicious child processes by an Atlassian Confluence server, specifically looking for shell interpreters (sh, bash, dash, ksh, zsh, csh, fish), curl, wget, or python being executed as child processes of the Confluence Java process. This behavior is indicative of successful exploitation of CVE-2022-26134, a critical remote code execution vulnerability in Atlassian Confluence. The rule focuses on the post-exploitation phase where an attacker would execute commands on the compromised server.
Detects exploitation attempts targeting Pulse Secure VPN appliances via CVE-2019-11510. Specifically, it looks for requests to a URI path containing '/dana/html5acc/guacamole/', which is indicative of an attacker attempting to access the Guacamole component of the Pulse Secure appliance.
Detects exploitation attempts targeting the F5 BIG-IP vulnerability CVE-2020-5902. The rule looks for specific URI query patterns indicative of directory traversal within the '/tmui/' or '/hsqldb' paths, which are known to be vulnerable.
Detects the exploitation of the VMware vSphere Remote Code Execution vulnerability (CVE-2021-21972) by identifying HTTP POST requests to the '/ui/vropspluginui/rest/services/uploadova' endpoint. This specific URI indicates an attempt to upload a malicious OVA file, which is the vector for the RCE.
Detects attempts to exploit the Atlassian Bitbucket Command Injection vulnerability (CVE-2022-36804) via the archive API. The rule specifically looks for requests to the '/rest/api/latest/projects/' endpoint containing 'prefix=' and the command injection payload '%00--exec' in the URI query.
Detects potential exploitation attempts of CVE-2023-2283, an authentication bypass vulnerability in libSSH. The exploitation method causes an error message indicating that keys for curve25519 could not be generated. This error message serves as a sign of an exploitation attempt, not necessarily a successful exploitation.
Detects process execution related exceptions in JVM based applications, which can often indicate Remote Code Execution (RCE) attempts. The rule specifically looks for keywords like 'Cannot run program', 'java.lang.ProcessImpl', and 'java.lang.ProcessBuilder' in application error logs.
Detects the execution of the 'jamf' binary with specific commands that could be used by attackers for privilege escalation, bypassing security controls, or modifying system configurations. This includes creating user accounts, managing the JAMF framework, removing MDM profiles, resetting passwords, and setting computer names.
Detects BGP failures which may be indicative of brute force attacks to manipulate routing.
This rule detects attempts to exploit CVE-2019-3398, a path traversal vulnerability in Confluence. The detection logic specifically looks for HTTP POST requests to '/upload.action' containing the path traversal sequence 'filename=../../../../'. This pattern indicates an attempt to upload a file to an arbitrary location on the server, which is characteristic of the CVE-2019-3398 exploitation.
Detects the exploitation of Zoho ManageEngine Desktop Central Java Deserialization vulnerability (CVE-2020-10189) by monitoring for suspicious child processes spawned by the Java executable associated with Desktop Central. This exploitation often leads to the execution of command-line utilities for further compromise.
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