Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects network beaconing activity associated with Transparent Tribe (APT36) Golang-based remote access trojans (RAT). The rule identifies specific HTTP POST requests to suspicious domains and URI paths ('/api/gym-facility', '/api/gym-membership') that mimic legitimate fitness-related traffic to blend in with environment noise.
Detects DNS queries and HTTP GET requests directed at known typosquatted domains associated with the APT36 (Transparent Tribe) threat group, which are utilized for payload staging and delivery.
This rule detects network traffic patterns indicative of the Transparent Tribe threat group using the GitHub API for command-and-control (C2) operations. It specifically identifies HTTP requests to GitHub's content API that attempt to access or exchange files named 'command.txt', 'results.txt', 'heartbeat.txt', or 'screenshot.png', which are known indicators of this actor's C2 communication strategy.
This rule detects suspicious outbound HTTP POST requests to a specific domain ('monitorondomainwintgt') containing known API endpoints ('/api/gym-facility', '/api/gym-membership', '/api/coach-instructions') often used by Golang-based Remote Access Trojans (RATs) for command-and-control communication.
Detects network activity (DNS, TLS SNI, and direct TCP connections) associated with the Transparent Tribe threat group's command-and-control infrastructure, specifically targeting the domain 'sharema128.net' and its associated IP address.
Detects network communication patterns associated with the RUSTYSHADE malware family, which leverages the GitHub REST API for command-and-control (C2) operations. The rule monitors for specific SNI indicators, GitHub API URL patterns for command retrieval, task/result file interactions, exfiltration of files (screenshots/webcam photos), and custom encrypted request body markers.
Detects DNS queries, HTTP requests, and TLS connections associated with known APT36 (Transparent Tribe) malicious infrastructure, specifically targeting typosquatted news domains used for staging payloads.
Detects a host making 3 or more outbound connections within 5 minutes to AWS-hosted IP addresses known to host NJRAT C2 infrastructure from the GTA6 lure campaign, consistent with periodic RAT beaconing rather than a one-off incidental connection.
Detects a host making 3 or more outbound connections within 5 minutes to AWS-hosted IP addresses known to host NJRAT C2 infrastructure from the GTA6 lure campaign, consistent with periodic RAT beaconing rather than a one-off incidental connection.
Detects potential unauthenticated Remote Code Execution (RCE) exploitation attempts targeting the IKEv2/ISAKMP VPN service on WatchGuard Firebox devices (CVE-2025-14733). The rule monitors UDP traffic on standard IKE ports 500 and 4500, looking for specific payload patterns and elevated data sizes consistent with exploitation attempts, coupled with a threshold to reduce noise.
Detects potential unauthenticated Remote Code Execution (RCE) exploitation attempts targeting the IKEv2/ISAKMP VPN service on WatchGuard Firebox devices (CVE-2025-14733). The rule monitors UDP traffic on standard IKE ports 500 and 4500, looking for specific payload patterns and elevated data sizes consistent with exploitation attempts, coupled with a threshold to reduce noise.
Detects specific malformed HTTP request patterns associated with the Casbaneiro (Metamorfo) banking trojan. The rules identify suspicious beaconing attempts, including specific URI structures ('/$p', '/$or?u=') and malformed headers (missing Host header combined with specific Content-Length anomalies).
This rule detects network traffic originating from potential Casbaneiro or Ousaban malware that uses HTTP 302 redirects to redirect non-targeted IP addresses to Google or YouTube. This behavior is used as a geofencing and sandbox evasion technique to prevent security analysts and automated systems from seeing the actual malicious payload.
This rule detects network traffic patterns associated with the Koktevrat Android RAT, specifically identifying periodic TLS beacons (heartbeats) destined for known C2 domains (streams-tv.lol and stream-plus.lat). The behavior suggests the use of Android's AlarmManager to schedule recurring callbacks to the C2 infrastructure.
Detects specific command strings ('proxy_open', 'proxy_data', 'proxy_close') associated with the Koktevrat Android RAT's tunneling functionality. The rule monitors outbound TCP traffic to identify the initiation, data transfer, and termination phases of a proxy connection, leveraging Suricata flowbits to track the state of the C2 tunnel.
Detects specific command strings ('proxy_open', 'proxy_data', 'proxy_close') associated with the Koktevrat Android RAT's tunneling functionality. The rule monitors outbound TCP traffic to identify the initiation, data transfer, and termination phases of a proxy connection, leveraging Suricata flowbits to track the state of the C2 tunnel.
Detects repeated authentication attempts over PPTP (port 1723) or L2TP (port 1701) protocols originating from an external network, indicative of potential brute-force activity against remote access services.
Detects repeated authentication attempts over PPTP (port 1723) or L2TP (port 1701) protocols originating from an external network, indicative of potential brute-force activity against remote access services.
Detects high-frequency connection attempts to PPTP (1723) and L2TP (1701) VPN ports from an external source, indicative of automated scanning or vulnerability discovery activity.
Detects high-frequency connection attempts to PPTP (1723) and L2TP (1701) VPN ports from an external source, indicative of automated scanning or vulnerability discovery activity.
This rule detects potentially malicious use of residential proxies by monitoring for outbound HTTP CONNECT requests originating from consumer devices in the internal network. The use of HTTP CONNECT is a common method for establishing tunnels through proxies to mask C2 communication or facilitate unauthorized access, often associated with botnets or malicious proxy networks.
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