Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects exfiltration of sensitive information, including Dahua camera credentials and internal identifiers, to the Telegram Bot API over HTTPS. These rules monitor for specific API endpoints (/sendPhoto) and common credential patterns (Login:, Password:, Model:) or indicators (Shodan links, VKontakte references) within HTTP POST requests directed toward api.telegram.org.
Detects network traffic involving TLS certificates or Server Name Indication (SNI) values that attempt to impersonate the Uzbekistan state railway authority (azure.uzrailwaystax.com). The rules also flag connections associated with certificates issued by 'TLC DV TLS CA' and known C2 infrastructure using the spoofed railway certificate.
Detects attempts to exploit CVE-2021-33044, an authentication bypass vulnerability in Dahua NetKeyboard hardware. The rule triggers when a POST request containing 'global.login', 'clientType: NetKeyboard', and 'loginType: Direct' is observed, which allows unauthorized access by manipulating authentication parameters.
Detects network traffic attempting to exploit the Dahua CVE-2021-33044 vulnerability, which allows an unauthenticated user to bypass authentication mechanisms on affected NetKeyboard devices.
Detects HTTP POST requests directed to the URI path '/api/credentials' over the non-standard TCP port 8133, which is indicative of AMOS (Atomic macOS) Stealer exfiltrating stolen credentials to a C2 server.
Detects HTTP POST requests directed to the URI path '/api/credentials' over the non-standard TCP port 8133, which is indicative of AMOS (Atomic macOS) Stealer exfiltrating stolen credentials to a C2 server.
Detects network activity associated with the 'ClickFix' social engineering campaign, specifically targeting the 'Macfinger' variant. This involves detecting the fetching of obfuscated tracker JavaScripts (t.js), the delivery of deceptive 'Bot Protection' overlay HTML prompts used to trick users into executing malicious code, and network connections to known C2 infrastructure.
Detects network activity associated with the 'ClickFix' social engineering campaign, specifically targeting the 'Macfinger' variant. This involves detecting the fetching of obfuscated tracker JavaScripts (t.js), the delivery of deceptive 'Bot Protection' overlay HTML prompts used to trick users into executing malicious code, and network connections to known C2 infrastructure.
Detects Xray-core C2 tunnel traffic where the TLS SNI is spoofed to appear as 'dl.google.com'. The detection specifically looks for this behavior originating from non-browser processes such as 'wkspbroker.exe' or 'radcui.dll', which is indicative of malicious tunneling activity.
Detects HTTP and TLS traffic patterns indicative of data exfiltration to Slack, specifically targeting hardcoded Slack API tokens, Slack channel IDs in HTTP request bodies, or traffic directed to hooks.slack.com, commonly associated with malicious npm packages.
Detects network activity indicating interaction with known Adversary-in-the-Middle (AiTM) phishing infrastructure. This includes direct outbound connections to specific suspicious IP addresses and the identification of proxied Microsoft 365 OAuth authorization flows redirected to non-Microsoft hosts.
This rule monitors outbound TLS traffic to detect communication with public Slack or Telegram webhook APIs, which are commonly abused by malware or malicious Node.js/npm packages for data exfiltration or command-and-control (C2) operations.
This rule detects potentially malicious Command and Control (C2) traffic utilizing DNS over HTTPS (DoH) to interact with public resolvers like Cloudflare, Google, and Quad9. It identifies both high-frequency, repeated direct-to-resolver TLS sessions and specific HTTP requests to these resolvers that resolve domains associated with known C2 infrastructure, such as the ClickFix campaign.
Detects the NeedyMantis main-component handshake: an HTTP GET to port 443 with a User-Agent that is EXACTLY the hard-coded literal 'firefox/21.0' (anchored start+end) and an explicit 'Upgrade: websocket' header, marking the HTTPS-to-WebSocket protocol switch used before the RC4 key exchange. Restricting to port 443 and requiring an exact (not substring) UA match removes generic WebSocket apps and any traffic where 'firefox/21.0' merely appears inside a real, longer browser UA string.
Detects HTTP responses containing a file named 'ClaudeDesktop.exe' served from paths containing '/artifacts/' on the 'claude.ai' host where the request referrer is not 'claude.ai' or 'anthropic.com', suggesting a malvertising or supply chain delivery attempt of a malicious installer.
Detects network traffic directed towards Telegram shortened URLs (t.me) which is a common command-and-control (C2) communication channel used by Vidar and other malware families to exfiltrate data or retrieve instructions.
Detects network activity associated with the ErrTraffic malware, specifically targeting JSON-RPC 'eth_call' requests to Polygon blockchain smart contracts used for C2 resolution and subsequent DNS queries to known malicious domains used for C2 infrastructure.
Detects outbound network traffic from internal hosts to known IP addresses associated with Exvicy Malware-as-a-Service (MaaS) Command and Control (C2) or hosting infrastructure. This rule acts as an indicator of compromise (IOC) match to identify potential infected hosts communicating with malicious external servers.
Detects HTTP POST requests to SharePoint ToolPane or WebPartPage endpoints containing serialized gadget chains (e.g., ysoserial ExpandedWrapper/ObjectDataProvider or XamlServices) indicative of deserialization exploitation attempts, specifically targeting CVE-2026-65660.
Detects outbound HTTP POST requests associated with the VelvetCake malware and Konni threat actor to the command-and-control (C2) domain 'medianewsonline.com'. The rule matches specific URI patterns ('/logout.php') and query parameters ('OKey=', 'Who=', 'Areyou=') commonly used for reconnaissance and data exfiltration.
Detects RevStealer malware attempting to use blockchain infrastructure for C2 communication or failover. The rules identify specific 'eth_call' JSON-RPC method calls to Polygon smart contracts containing hardcoded indicators, as well as TLS connections to known public RPC providers used as fallback C2 infrastructure.
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