Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects established TLS connections to known malicious infrastructure associated with PureRAT and DlrtyGames RAT. The rules identify suspicious patterns such as connections without a Server Name Indication (SNI) and specific JA3 hashes indicative of malware beacons.
Detects outbound HTTP requests to a specific Telegram channel (chanadarkpart) commonly associated with the TELEPUZ malware (used by SCMBANKER), indicating a potential command-and-control (C2) dead-drop resolver communication attempt.
This rule detects a specific HTTP request pattern targeting the WordPress REST API batch endpoint. It identifies a malformed sub-request path containing a path string formatted as 'http://:', which is indicative of a 'route confusion' attempt, potentially leading to unauthorized operations or SSRF (Server-Side Request Forgery) within the WordPress environment.
This rule detects network traffic patterns associated with BlueNoroff ClickFix C2 communications. It specifically identifies GET requests to endpoints containing an 'ft?id=' parameter followed by a base64-encoded string, which indicates the delivery of encrypted tasking parameters to an infected system.
Detects network activity associated with BlueNoroff ClickFix campaigns, specifically targeting the download of suspicious Windows PE files from typosquatted CDN/payload URIs. The rule uses session tracking to correlate the initial URI request with the subsequent retrieval of executable content.
Detects an outbound HTTP GET request containing a .jpg extension in the URI, initiated by a user agent string containing 'PowerShell'. This pattern is commonly associated with attackers downloading images intended to serve as carriers for steganographic payloads, which are then parsed or executed by malicious PowerShell scripts.
This rule detects network traffic patterns where an internal host initiates an HTTP connection to a specific Steam Community profile, which is used as a dead-drop resolver by the TELEPUZ malware (associated with the CLICKFIX-VIDAR campaign) to retrieve secondary command-and-control infrastructure information.
This rule detects outbound HTTP requests using the WebDAV protocol that target specific directory paths associated with the Stealth Falcon campaign staging activity. Such traffic may indicate a compromised host attempting to download tools or payloads from an adversary-controlled infrastructure.
This rule detects network activity associated with a phishing campaign impersonating the RENAPO CURP lookup service. It monitors for TLS SNI and HTTP Host headers containing the typosquatted domain 'gobf.mx', as well as HTTP responses containing specific keywords related to the Mexican CURP registration form originating from this domain.
Detects network communication associated with the Blind Eagle (APT-C-36) threat actor's use of AsyncRAT. This rule identifies DNS queries for a specific DuckDNS domain, matching TLS SNI for the same domain, and network connections to a known historic C2 IP address historically used via a shared VPN egress.
Detects outbound TLS traffic directed toward ngrok.io infrastructure originating from Azure Container Instances. Ngrok is frequently used by adversaries to establish reverse proxies and tunnels to maintain persistent command-and-control access to compromised cloud-hosted containers.
Detects unauthenticated HTTP POST requests targeting the /api/v1/validate/code endpoint in Langflow, which is indicative of an exploitation attempt associated with CVE-2025-3248.
Detects DNS queries for the Twilio TURN relay domain 'global.turn.twilio.com', which is associated with msaRAT C2 activity. This indicator is low-confidence and intended to be used as part of a correlation with other behaviors like loopback C2 traffic or suspicious DevTools usage.
Detects outbound HTTP POST requests containing JSON-RPC 'eth_call' methods, which are indicative of EtherHiding activity where blockchain infrastructure is abused for command and control or data retrieval.
Detects network traffic originating from the internal network directed towards a specific IP range associated with known PureRAT command and control infrastructure.
Detects outbound HTTP POST requests destined for 'webhook.site' containing the string 'secret' in the request body. This is a common pattern used by attackers to exfiltrate small amounts of sensitive data or credentials to a public web service for collection.
Detects outbound HTTP POST requests containing the word 'secret' in the request body directed to the external service 'webhook.site', which is often used by adversaries for quick data exfiltration or testing during post-exploitation activities.
Detects outbound network traffic established to an *.ngrok.io domain, which is frequently used by adversaries to create secure tunnels for command and control (C2) or unauthorized data exfiltration.
Detects periodic, repetitive TLS network connections from internal hosts to external destinations using threshold-based analysis. This pattern is indicative of potential command-and-control (C2) beaconing, which may be used for exfiltrating stolen credentials or sensitive data from build or developer environments.
Detects sequential HTTP GET requests for specific SVG assets (barr.svg followed by lg.svg) associated with the Kratos V1 phishing kit landing page, indicating potential interaction with a phishing site.
This rule detects network traffic originating from the internal network directed towards a hardcoded IP address associated with the CrashStealer malware. The rule flags outbound traffic to this specific destination, which is indicative of command and control communication or data exfiltration.
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