Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects HTTP traffic patterns consistent with a Golang-based Remote Access Trojan (RAT) beaconing to a command and control (C2) server. It monitors for specific fitness-themed URI paths used for C2 communication and identifies the use of a hardcoded domain ('monitorondomainwintgt') within both the HTTP Host header and the TLS SNI field.
Detects network traffic to known Transparent Tribe (APT36) C2 IP addresses and DNS resolution attempts for their associated command and control domains. This rule monitors for communication with identified malicious infrastructure often used by the group for C2 activity.
This rule detects network traffic containing the 'HCENC1' signature prefix within the payload, which is associated with the RUSTYSHADE malware family. This pattern indicates an encrypted communication channel used for command and control (C2) purposes.
This rule detects network traffic containing the 'HCENC1' signature prefix within the payload, which is associated with the RUSTYSHADE malware family. This pattern indicates an encrypted communication channel used for command and control (C2) purposes.
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 associated with the PSNATCH malware exfiltrating data to GitHub. It specifically identifies HTTP requests to 'api.github.com' using the custom 'SmartUploader' User-Agent string, which is characteristic of this malware's exfiltration behavior.
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 outbound HTTP requests to known Kimsuky command and control (C2) infrastructure associated with the Stella_Gary campaign. The rule monitors for specific URI patterns ('/unicorn/mort.php' or '/unicorn/uni.txt') commonly used by this threat actor for beaconing.
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 DNS queries and established TLS connections to Microsoft Dev Tunnels (devtunnels.ms), which can be abused by adversaries to establish tunnels for unauthorized remote access, such as tunneling RDP traffic to bypass network security controls.
This rule detects DNS queries and TLS SNI connections to 'devtunnels.ms'. This domain is associated with Microsoft Dev Tunnels, a service that exposes local development environments to the internet. Adversaries may abuse this legitimate service to establish reverse tunnels or proxies, enabling lateral movement and bypassing inbound network restrictions.
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.
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