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.
Detects potential malicious .ICO files downloaded from a compromised 3CXDesktopApp via web requests to a malicious GitHub repository, indicative of the SmoothOperator campaign.
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 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.
Detects connections made by Microsoft BITSAdmin to domains using uncommon Top-Level Domains (TLDs). This can indicate command and control activity or data exfiltration where an adversary is attempting to blend in with legitimate traffic but using less common TLDs to avoid common filtering.
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 attempts to exploit CVE-2020-10148, an authentication bypass vulnerability in SolarWinds Orion API. This rule looks for specific URI query patterns associated with the exploit, while excluding legitimate requests.
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.
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.
Detects an authentication bypass vulnerability (CVE-2021-40539) affecting the REST API URLs in Zoho ManageEngine ADSelfService Plus. The rule specifically looks for requests to vulnerable endpoints that could be used to exploit this flaw.
Detects potential exploitation attempts of CVE-2022-21587, an arbitrary file upload vulnerability impacting Oracle E-Business Suite (EBS). This vulnerability can lead to unauthenticated remote code execution.
This rule detects potential exploitation attempts targeting the Centos Web Panel (CWP) 7, specifically looking for indicators related to CVE-2022-44877, an unauthenticated remote code execution vulnerability. The detection logic focuses on POST requests to '/login/index.php' containing specific query parameters and keywords often associated with reverse shells or command injection, such as 'login=$(' or base64 encoded 'python' strings.
Detects HTTP User-Agent strings that end with an equal sign, which can be an indicator of Base64 encoding. This technique is often used by malware to obfuscate C2 communications.
This rule detects exploitation attempts using the Pulse Connect Secure (PCS) vulnerability CVE-2021-22893. The detection logic looks for specific URI query patterns commonly associated with this exploit.
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