Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects a unique URL marker '/MSHTML_C7/' used in GET requests, which has been associated with RomCom exploitation attempts, potentially leveraging CVE-2023-36884. This marker is indicative of command and control communication or initial access related to the exploit.
Detects potential C2 communication related to Devil Bait malware by identifying specific URI patterns in GET requests. The rule looks for URIs containing '/cross.php?op=', '&dt=', and '&uid=' which are indicative of Devil Bait's communication with its command and control server.
Detects a potential exploitation attempt of CVE-2023-25717, a Remote Code Execution vulnerability via an unauthenticated HTTP GET Request, in Ruckus Wireless Admin. The rule looks for specific URI query parameters including '/forms/doLogin', 'login_username', 'password', and the presence of '$(' or its URL-encoded version '%24%28', which are indicative of command injection.
This rule detects commands commonly used on Cisco network devices to collect configuration data, which may contain sensitive information such as credentials. The commands include 'show running-config' to display the current operational configuration, 'show startup-config' to display the configuration loaded at boot, and 'show archive config' which can show archived configurations. An adversary might use these commands to gather information about the network, discover credentials, or understand the device's security posture.
Detects Label Distribution Protocol (LDP) authentication failures on Cisco devices, which could indicate an adversary attempting to brute force LDP authentication to manipulate MPLS labels. This could be part of an effort to disrupt network traffic or gain unauthorized access.
Detects downloads of potentially malicious file types (executables, scripts, documents, archives) from domains that are not common Top-Level Domains (TLDs). This rule aims to identify suspicious file transfers that bypass typical, trusted sources.
This rule detects suspicious Windows file path strings (e.g., 'C:/Users', 'C:/Windows', 'C:/Program Files') within the URI query component of web requests. The presence of such strings in a URI could indicate an attempt to exfiltrate data from a Windows system or communicate with a webshell that is attempting to access local files or directories. The rule looks for both standard and URL-encoded variations of these paths.
Detects exploitation attempts against the Oracle WebLogic server vulnerability CVE-2021-2109. The rule specifically looks for GET requests containing 'com.bea.console.handles.JndiBindingHandle', 'ldap://', and 'AdminServer' in the URI query, which are indicators of an attempted JNDI injection via LDAP.
Detects exploitation attempts of the SonicWall SSL/VPN Jarrewrite vulnerability. The rule looks for requests to '/cgi-bin/jarrewrite.sh' combined with specific patterns in the 'cs-user-agent' header that indicate command injection attempts, such as ':;', '() {', or '/bin/bash -c'. This targets a known vulnerability allowing attackers to execute arbitrary commands.
This rule detects a specific HTTP GET request pattern associated with potential exploitation of CVE-2023-36884 by the RomCom threat group. The pattern involves a URI containing '/MSHTML_C7/' and a query parameter 'd' followed by an IPv4 address.
Detects potential beaconing activity to known malicious domains associated with the 3CXDesktopApp supply chain compromise. This rule specifically looks for connections through a proxy to a list of hardcoded domains identified as indicators of compromise (IOCs) during the 3CXDesktopApp incident.
This rule detects when a monitor, SPAN (Switched Port Analyzer), or RSPAN (Remote Switched Port Analyzer) is configured or modified on a Cisco network device. These configurations are often used for network sniffing or traffic analysis, which can be legitimate for troubleshooting but also abused by adversaries for data exfiltration or reconnaissance.
This rule detects the execution of 'show history', 'show history all', or 'show logging' commands on Cisco devices. These commands can expose sensitive information, including credentials, that have been entered into the device's command-line interface. Adversaries may use these commands to gather credentials or other sensitive configuration details from network devices.
Detects exploitation attempts using the JNDI-Exploit-Kit by looking for specific URI patterns in web server logs. These patterns are indicative of various JNDI injection payloads designed to achieve remote code execution, reverse shells, or memory shell deployments on vulnerable applications like Tomcat, Jetty, Weblogic, JBoss, Websphere, and Spring.
Detects exploitation attempts of the Microsoft Exchange vulnerability CVE-2020-0688. This vulnerability allows for remote code execution due to improper validation of cmdlet arguments. The rule specifically looks for GET requests to '/ecp/' or '/owa/' paths containing '__VIEWSTATE=' in the query string, which is indicative of the exploitation attempt.
Detects a specific URL pattern containing a specific extension and parameters pointing to an IP address. This pattern was seen being used by RomCOM potentially exploiting CVE-2023-36884. The rule looks for GET requests where the URI contains a file extension like .zip, .asp, .htm, .url, .xml, .chm, .mht, .vbs, or .search-ms, followed by '?d=' and an IPv4 address.
Detects HTTP GET requests for specific file paths associated with the RomCom threat actor, potentially exploiting CVE-2023-36884. These file paths include various file types such as .url, .search-ms, .vbs, .mht, and .asp, which are likely used for initial access or further stages of the attack.
This rule detects attempts to clear logging or archive history on Cisco network devices. Adversaries may clear command history or logging to remove forensic evidence of their activities, which is a common defense evasion technique.
This rule detects various keywords associated with data transfer and staging activities on Cisco devices. These activities could indicate an adversary attempting to move data onto the device for further exfiltration or to move data off the device. The keywords include common protocols and commands like 'tftp', 'rcp', 'puts', 'copy', 'configure replace', and 'archive tar', which are often used for file transfers and configuration management on network devices.
Detects the download of executable, script, archive, and document file types from hosts associated with dynamic DNS services. These services are often abused by adversaries for command and control or for hosting malicious content due to their ability to frequently change IP addresses, making them harder to track and block.
Detects network requests to '/pwndrop/' URI paths, which are indicative of communication with a PwnDrp web server. PwnDrp is a tool developed for red team testing and is also known to be used for malicious activities, typically for command and control or data exfiltration.
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