Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects network traffic associated with the NPM Btree malware campaign, specifically identifying command-and-control (C2) polling activities directed toward blockchain RPC endpoints like Alchemy and Infura. The rules monitor for specific API keys, C2 smart contract addresses via 'eth_call' JSON-RPC requests, and overall traffic patterns to known malicious infrastructure.
Detects network traffic indicating the use of Slack APIs as a command and control (C2) channel or for exfiltration. The rules monitor for specific TLS SNI strings, hardcoded Slack bot tokens, and specific channel IDs associated with the 'indexed-btree' malware campaign, which utilizes Slack as a C2 platform.
Detects network activity associated with a malicious npm package campaign leveraging Sepolia Ethereum testnet RPC endpoints (Alchemy and Infura) for command-and-control (C2) communication. The detection looks for JSON-RPC 'eth_call' requests and specific contract address references characteristic of this campaign.
Detects network activity associated with the NPM Btree malware campaign, specifically TLS/HTTP communication with Ethereum Sepolia RPC endpoints (Alchemy and Infura) and requests containing a hardcoded malicious contract address.
Detects network traffic exhibiting beaconing patterns to 'dl.google.com' that may be indicative of Xray-core C2 tunneling disguised as legitimate Google traffic. The rule uses a threshold to identify consistent connection attempts.
Detection of suspicious network traffic directed toward Slack APIs, characterized by the use of hardcoded Slack bot tokens and specific communication patterns associated with the 'indexed-btree' npm malware family, indicating potential C2 communication or data exfiltration.
Detects outbound network traffic attempting to exfiltrate data to Slack or Telegram APIs using hardcoded bot tokens or channel identifiers associated with the 'indexed-btree' malware campaign.
Detects outbound HTTP POST requests to the Polygon blockchain using the 'eth_call' JSON-RPC method, specifically targeting a known smart contract address associated with EtherHiding-style C2 infrastructure. This behavior indicates an adversary utilizing decentralized blockchain storage or services as an unconventional command-and-control channel to resolve malicious configurations or payloads.
Detects outbound network traffic, including DNS lookups, TLS connections, and HTTP requests, directed towards IPRoyal or LightningProxies. These services are commonly used as residential or datacenter proxies and may be leveraged by adversaries for command-and-control (C2) communication, including traffic tunneling for services like Telegram.
This rule detects outbound HTTP requests to the blogspot.com domain, which is often used by malware for command-and-control (C2) communication, staging, or as an initial check-in mechanism. Attackers frequently abuse legitimate blogging platforms to host malicious content and evade network-based detections that might otherwise flag unknown or suspicious domains.
Detects network traffic associated with NarwhalRAT malware utilizing the pCloud API as a command-and-control (C2) channel or dead-drop resolver. The rule monitors both HTTP requests containing specific folder identifiers and authentication parameters, as well as TLS SNI indicating connections to api.pcloud.com.
Detects repeated large HTTP PUT or POST requests (exceeding 5MB) from a internal host to external destinations. This pattern is indicative of potential bulk data exfiltration over web services.
This rule detects network traffic patterns indicative of a reverse shell established by DSCourier, a tool or script that leverages the ConfigurationRemotingServer interface to facilitate interactive command execution on a remote host.
Detects specific FTP commands (STOR, RETR, TYPE I) and passive mode responses directed to or originating from identified malicious IP addresses associated with the LucidRook threat actor. This rule monitors for potential file exfiltration, payload retrieval, and command-and-control communication over the FTP protocol.
Detects outbound network traffic associated with identified ClickFix CPaaS payload domains and associated API endpoints. The rule monitors for specific malicious domain contact (comicstar.lat, babybon.cfd, merkantalolol.asia) and the use of the '/api/index.php?a=init' endpoint, which is indicative of the ClickFix payload delivery mechanism.
Detects outbound HTTP requests to 'relay.php' containing a static authorization bearer token 'crpx0_c2_2026', which is associated with the command and control activity of the CRPx0 ransomware family.
Detects network traffic associated with the AdaptixC2 framework agent check-in process. The rule looks for specific HTTP GET request patterns, including URI paths commonly used by the agent, session-related cookies, and Content-Type headers set to application/octet-stream.
Detects network traffic associated with NGate Android malware communicating with its Command and Control (C2) server. The rule monitors for specific HTTP POST patterns, including an 'okhttp' user-agent and binary body content characteristic of NFC relay relay attempts used for fraudulent payment activities.
Detects outbound HTTP POST requests directed towards Internet Computer Protocol (ICP) canister gateways (e.g., icp0.io, ic0.app) containing specific API path patterns (/api/v2/canister/) used for executing queries or calls. The rule specifically flags traffic lacking common browser-like User-Agent strings, which is a common indicator of automated command-and-control beacons using these services as proxy infrastructure.
This rule detects outbound TLS traffic to the Solana mainnet beta RPC API endpoint (api.mainnet-beta.solana.com). Attackers may abuse legitimate public blockchain infrastructure as a command-and-control channel to bypass traditional network defenses or obfuscate communication.
Detects network beaconing activity associated with the TuxBot v3 IoT botnet. The rule identifies specific User-Agent strings (TuxBot/3, BusyBox wget, Wget/1.x), requests for .elf files, and connections to suspicious top-level domains frequently used for botnet command-and-control (C2) infrastructure.
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