Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects network traffic (DNS, TLS, HTTP, and TCP) originating from internal assets to known infrastructure associated with the QTFY proxy botnet/C2 framework. It identifies communication with specific C2 domains, proxy management systems, and associated malicious IP ranges.
Detects outbound HTTP GET requests to a specific C2 domain 'luizestrelhashapr.online' masquerading as CSS file fetches. The request pattern uses a specific path '/google_api/' followed by predefined alphanumeric filenames, consistent with the KREMLIN malware browser extension's C2 polling mechanism.
Detects outbound HTTP GET requests to a specific C2 domain 'luizestrelhashapr.online' masquerading as CSS file fetches. The request pattern uses a specific path '/google_api/' followed by predefined alphanumeric filenames, consistent with the KREMLIN malware browser extension's C2 polling mechanism.
Detects network communication associated with Mantax Otax Android malware, including traffic to identified command-and-control (C2) infrastructure and attempts to retrieve dynamic configuration files from GitHub.
Detects anomalous network connection attempts using DCOM (port 135) or WinRM (ports 5985/5986) that originate from external networks or exceed established internal baseline frequencies. This pattern is often indicative of lateral movement or remote administration abuse via WMI or WinRM.
Detects anomalous network connection attempts using DCOM (port 135) or WinRM (ports 5985/5986) that originate from external networks or exceed established internal baseline frequencies. This pattern is often indicative of lateral movement or remote administration abuse via WMI or WinRM.
Detects specific outbound HTTP POST requests to a known Amatera Stealer command and control domain. The rule looks for the unique URI path '/T.@w' and a specific 'Command: GetEndpoints' header structure commonly used by this malware family to beacon to its C2 infrastructure.
This rule detects outgoing HTTP requests to 'apimantax.otax.fun' attempting to initiate a WebSocket upgrade connection. This is characteristic of the Mantax Otax v2 malware family establishing a Command and Control (C2) channel.
Detects network communication to Firebase infrastructure (.firebaseio.com) initiated by Android devices, which may indicate command-and-control (C2) activity associated with the Mantax Otax malware family. This rule tracks initial connections and should be correlated with specific suspicious domains for higher confidence.
Detects HTTP POST requests to gapidriver.com/api/rest.php containing stager-specific status messages like 'build started', 'launch error', or 'all builds loaded', indicating NeedleStealer malware command-and-control activity.
Detects HTTP POST requests to gapidriver.com/api/rest.php containing stager-specific status messages like 'build started', 'launch error', or 'all builds loaded', indicating NeedleStealer malware command-and-control activity.
Detects Odyssey Stealer malware communicating with a known C2 infrastructure using TLS and performing data exfiltration via HTTP requests to raw-IP destinations using disguised file names such as analytics.gif, pixel.png, and content.js.
Detects network traffic between internal hosts and a known malicious IP address on port 5556, characteristic of Go_RAT (hVNC) command and control communication. This rule monitors for established TCP connections to identify potential C2 beaconing or active remote management sessions by the GapiUpdate campaign.
Detects network traffic between internal hosts and a known malicious IP address on port 5556, characteristic of Go_RAT (hVNC) command and control communication. This rule monitors for established TCP connections to identify potential C2 beaconing or active remote management sessions by the GapiUpdate campaign.
Detects network traffic between internal hosts and a known malicious IP address on port 5556, characteristic of Go_RAT (hVNC) command and control communication. This rule monitors for established TCP connections to identify potential C2 beaconing or active remote management sessions by the GapiUpdate campaign.
Detects established raw-TCP C2 communication sessions associated with the GapiUpdate Go-based RAT, identifying both known malicious infrastructure and behavioral anomalies characteristic of long-lived, encrypted C2 persistence.
Detects established raw-TCP C2 communication sessions associated with the GapiUpdate Go-based RAT, identifying both known malicious infrastructure and behavioral anomalies characteristic of long-lived, encrypted C2 persistence.
Detects repeated manual HTTP GET requests from many distinct source IPs to a canary token resource. The URI pattern follows a format indicative of a tracked canary token resource, and the threshold of 49 unique source IPs accessing the resource within a prolonged period suggests potential unauthorized reconnaissance or probing activities.
Detects high-frequency, repeated access to a specific fraud-tracking or canary token link by sources utilizing rotating VPNs or proxies over an extended period. This behavior is indicative of automated probing or credential validation attempts associated with the Phantom Deal campaign.
Detects high-frequency, repeated access to a specific fraud-tracking or canary token link by sources utilizing rotating VPNs or proxies over an extended period. This behavior is indicative of automated probing or credential validation attempts associated with the Phantom Deal campaign.
Detects an attempt to exploit CVE-2026-24858 in FortiCloud SSO by sending a crafted SAML authentication request that lacks a signature. This vulnerability allows an attacker to bypass authentication by providing an unsigned SAML response.
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