Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
868 detections
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Detects network activity characteristic of the CVE-2019-0708 (BlueKeep) Remote Desktop Services exploit, including specific RDP negotiation patterns and subsequent RDP service crashes or resets potentially indicative of a successful or failed exploitation attempt.
Detects the specific TCP handshake pattern characteristic of the Fast Reverse Proxy (FRP) client (frpc) initiating a connection to a command-and-control server. The rule inspects established traffic for specific metadata strings ('privilege_key', 'run_id', 'pool_count') within the initial handshake payload.
Detects network handshake patterns associated with the Fast Reverse Proxy (FRP) client, specifically identifying outbound traffic containing identifiers used in common FRP reverse tunnel configurations. This behavior is indicative of unauthorized remote access tools or tunneling software establishing a connection to an external command-and-control server.
Detects specific command-and-control (C2) communication patterns associated with the VelvetCake malware. The rules identify initial authentication with a hardcoded password string, module enumeration requests, and session termination signals transmitted over TCP.
Detects specific command-and-control (C2) communication patterns associated with the VelvetCake malware. The rules identify initial authentication with a hardcoded password string, module enumeration requests, and session termination signals transmitted over TCP.
Detects specific command-and-control (C2) communication patterns associated with the VelvetCake malware. The rules identify initial authentication with a hardcoded password string, module enumeration requests, and session termination signals transmitted over TCP.
Detection of network traffic associated with VelvetCake (Konni) malware, identifying communication with known hardcoded C2 infrastructure, domain lookups, and exfiltration attempts via HTTP/TLS and raw TCP protocols.
Detection of network traffic associated with VelvetCake (Konni) malware, identifying communication with known hardcoded C2 infrastructure, domain lookups, and exfiltration attempts via HTTP/TLS and raw TCP protocols.
Detects the specific TCP handshake pattern characteristic of the Fast Reverse Proxy (FRP) client (frpc) initiating a connection to a command-and-control server. The rule inspects established traffic for specific metadata strings ('privilege_key', 'run_id', 'pool_count') within the initial handshake payload.
Detects anomalous sequential SMB scanning patterns across a /24 subnet and subsequent SMB share enumeration attempts (NetShareEnum) from a single host, consistent with reconnaissance activities associated with the DragonForce threat actor group.
Detects network traffic containing a specific 4-byte sequence ('13 12 11 09') identified as the initial handshake packet for the SparroWocky malware's reverse port-mapping server component.
Detects network communication to identified SpiceRAT Command and Control (C2) infrastructure over TCP port 443. This includes monitoring for standard TCP connections and TLS sessions to known malicious IP addresses.
Detects high-frequency TCP connection attempts to port 37777, commonly associated with Dahua surveillance devices. The rule uses a threshold of 200 connection attempts within 60 seconds from a single source, which is characteristic of mass-scanning or brute-force activity.
Detects high-frequency login attempts directed at the Dahua Easy4IP SDK port 37777, consistent with automated brute-force toolkits like async_brute.py. The rule monitors for a specific packet sequence indicating authentication attempts within a short timeframe.
Detects outbound network traffic from internal hosts to known IP addresses associated with the SpiceRAT malware command and control infrastructure.
Detects high-frequency TCP SYN scanning activity targeting port 37777, commonly associated with the discovery of vulnerable Dahua DVR and NVR devices.
Detects network traffic attempting to exploit CVE-2021-33044 in Dahua NetKeyboard devices. The rule identifies specifically crafted 'global.login' requests designed to bypass authentication mechanisms.
Detects high-concurrency brute-force attempts against Dahua Easy4IP-enabled devices targeting port 37777, identified by specific binary patterns (opcode 0xA0) in the packet payload. This indicates an automated attempt to compromise device authentication.
Detects network communications between internal hosts and known malicious infrastructure associated with SpiceRAT, including TLS-based command channels and HTTP requests for decoy pages.
Detects network activity associated with the Rapuncel malware, including raw TCP exfiltration of files via POST requests to /upload, connections to known malicious C2 infrastructure, and repeated exfiltration retry patterns.
Detects outbound network traffic and subsequent inbound responses associated with AsyncRAT command and control (C2) communication. This rule monitors connections directed toward a specific hardcoded IP address known to be associated with AsyncRAT activity.
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