Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects outbound HTTP requests to 'pastebin.com' retrieving raw content, a technique commonly used by Ousaban malware to fetch command-and-control (C2) configurations from legitimate paste sites.
Detects the transmission of a Metasploit Meterpreter stage over HTTP, identified by an application/octet-stream response containing the DOS MZ header signature.
Detects HTTP requests containing a UNION SELECT pattern in the URI query string, which is a common indicator of a SQL injection attempt aimed at exfiltrating data or manipulating database queries.
This rule detects HTTP directory traversal attempts by inspecting incoming URI requests for common path traversal sequences such as '../', '..%2F', '..%2f', '..%5C', or '..%5c'. Attackers use these sequences to escape the web root directory and access unauthorized files on the server.
Detects suspicious network activity originating from the InstallUtil.exe process. InstallUtil is a legitimate Windows .NET utility that can be abused as a LOLBin (Living-off-the-Land Binary) to proxy the execution of malicious payloads, potentially bypassing application control mechanisms.
This rule detects potential lateral movement attempts using Windows Remote Management (WinRM) by monitoring for specific WSMan SOAP protocol headers in HTTP traffic. It specifically looks for POST requests to the WSMan endpoint that contain suspicious keywords like 'winrs', 'MSRPC', or 's:Envelope', which are commonly associated with remote command execution via winrs or PSSession.
Detects HTTP traffic where the User-Agent header references Regasm or Regsvcs, which are trusted Windows utilities often abused by attackers to proxy execution of malicious code (Living-off-the-Land Binary technique).
Detects HTTP GET requests for .msc (Microsoft Management Console) files, which can be leveraged as part of an attack chain to abuse the mmc.exe binary for proxy execution of malicious configurations.
Detects the transmission of a Portable Executable (PE) file header ('MZ' and 'PE' magic bytes) within an HTTP response stream, which is a common indicator of a staged file download or process injection payload being delivered over the network.
This rule detects potential phishing or cloaking activity where a web server response contains JavaScript logic that checks the visitor's User-Agent string using 'navigator.userAgent' and conditionally redirects the user via 'window.location'. This technique is commonly used to redirect specific targets (e.g., mobile devices or specific browsers) to malicious sites while serving benign content to others, often for credential harvesting or malware delivery.
This rule detects HTTP POST requests containing common credential field names directed at files ending in .php (such as login.php, result.php, or index.php), which is highly characteristic of phishing kits used to harvest credentials.
This rule detects outbound POST requests to the Telegram Bot API (api.telegram.org) originating from internal network hosts. The detection specifically looks for requests containing the 'sendMessage' path, which is characteristic of bots transmitting stolen data (such as credentials) or command-and-control communication. It focuses on traffic initiated by common command-line tools like 'python-requests' or 'curl', which are frequently abused by automated malware scripts.
Detects HTTP GET requests to known malicious infrastructure used in SEO poisoning campaigns to distribute the Bumblebee malware loader. The rule monitors for specific URL paths and hostnames associated with lookalike domains delivering trojanized MSI files.
This rule detects mass scanning activity targeting FortiGate SSL VPN login endpoints on non-standard HTTPS ports (4433, 4443, 8443, 9443, 10443, 541). It specifically looks for HTTP requests containing '/login' in the URI, indicating an attempt to find or interact with the VPN login page. The rule uses a threshold to identify mass scanning, triggering an alert if a source IP makes 10 or more such requests within 60 seconds.
Detects HTTP traffic initiating a WebSocket protocol upgrade with a specific 'binary' subprotocol header, characteristic of the Brickstorm backdoor used by the UNC5221 threat actor for command and control (C2) communication.
Detects HTTP traffic destined for the 1rpc.io Ethereum node gateway containing 'eth_call' in the request body, which is indicative of EtherRAT malware using blockchain infrastructure for command and control (C2) resolution.
Detects anomalous HTTP POST requests to the '/V1/Update/GetUpdate' endpoint on an MSSQL-hosted application, which is associated with malicious activity linked to the OceanLotus (APT32) threat actor group, specifically the Blazing Furnace campaign.
This rule detects network traffic directed at 'goldsky.arweave.net', a domain known to be used by the TukTuk malware as a dead-drop resolver. Adversaries often use legitimate web services like Arweave to host command-and-control (C2) configuration data, such as secondary C2 IP addresses or domains, allowing them to redirect infected hosts to backend infrastructure while masking the traffic as legitimate web communication.
Detects outbound HTTP PUT requests to 'filen.io', which has been associated with command-and-control (C2) communication for the PRISMEX malware used by the threat actor APT28 (also known as Pawn Storm/Fancy Bear).
Detects HTTP PUT requests directed at Wasabi Cloud Storage domains that originate from an Rclone user agent. This pattern is commonly indicative of data exfiltration activities where an attacker uses the Rclone utility to synchronize or upload sensitive data to unauthorized cloud storage.
Detects HTTP traffic destined for the 1rpc.io Ethereum node gateway containing 'eth_call' in the request body, which is indicative of EtherRAT malware using blockchain infrastructure for command and control (C2) resolution.
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