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Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects network activity associated with the TA419 threat group's 'Frameless' Browser-in-the-Browser (BitB) Adversary-in-the-Middle (AitM) phishing campaign. The rules identify unauthorized OAuth2 authorization requests to non-Microsoft hosts that match known malicious client IDs, the delivery of BitB overlay scripts, and the subsequent execution of malicious scripts correlated with OneDrive-themed lookalike redirects, indicating a credential theft attempt.
Detects connections from internal hosts to the ARTEX-linked actor host 38.244.50.120, including requests for the exposed .claude/CLAUDE.md file and its open-directory port 18899.
Detects HTTP responses and requests involving exposed Claude Code open directories (.claude/CLAUDE.md) tied to ARTEX operator infrastructure.
Detects HTTP traffic associated with the Wazza phishing kit anti-bot mechanism, including token minting requests, signed token responses, and validation checks.
Detects a multi-stage Wazza phishkit communication chain over HTTP, involving initial configuration retrieval, token minting, token firing, and subsequent redirection with signed tokens.
Detects HTTP requests and responses associated with the Wazza phishing kit, specifically targeting the /api/wazza-config endpoint and its wildcard routing configuration JSON responses.
Detects an exploitation attempt against PoeLLM or LiteLLM MCP test/connection endpoint using a python3 stdio payload that fetches data from port 81.
Detects network activity associated with the TA419 threat group's 'Frameless' Browser-in-the-Browser (BitB) Adversary-in-the-Middle (AitM) phishing campaign. The rules identify unauthorized OAuth2 authorization requests to non-Microsoft hosts that match known malicious client IDs, the delivery of BitB overlay scripts, and the subsequent execution of malicious scripts correlated with OneDrive-themed lookalike redirects, indicating a credential theft attempt.
Detects outbound HTTP requests to a known C2 domain (letsdiskuss.com) and a specific URI path, characteristic of the 'Lorem Ipsum' malware loader's dead-drop resolver lookup.
Detects P7 DarkSword implant C2 beaconing: HTTP/1.0 JSON POSTs to /beacon, /event or /a with the hardcoded iPhone OS 18_5 Safari 18.5 User-Agent. Requires the full combination of protocol version, method, URI, UA and content type, and alerts only after 3 matching requests from one source within 120 seconds (detection_filter) to suppress one-off matches.
Detects HTTP traffic associated with the Wazza phishing kit anti-bot mechanism, including token minting requests, signed token responses, and validation checks.
Detects HTTP traffic associated with the Wazza phishing kit anti-bot mechanism, including token minting requests, signed token responses, and validation checks.
Detects network traffic associated with Wazza phishkit anti-bot gates, including beacon communications, TLS SNI patterns, fingerprint iframe URIs, and challenge-platform requests.
Detects network traffic associated with Wazza phishkit anti-bot gates, including beacon communications, TLS SNI patterns, fingerprint iframe URIs, and challenge-platform requests.
Detects HTTP requests and responses associated with the Wazza phishing kit, specifically targeting the /api/wazza-config endpoint and its wildcard routing configuration JSON responses.
Detects HTTP requests and responses associated with the Wazza phishing kit, specifically targeting the /api/wazza-config endpoint and its wildcard routing configuration JSON responses.
Detects malicious command-and-control (C2) activity targeting Citrix NetScaler appliances (tracked as CVE-2026-88772). The rules identify specific malformed HTTP headers (NSC_LDAP, NSC_CLIENTTYPE, X-UX) used to establish a command channel, as well as potential webshell masquerading through ico-to-sig URI patterns in the /vpn/media/ path.
Detects network activity associated with the TA419 threat group's 'Frameless' Browser-in-the-Browser (BitB) Adversary-in-the-Middle (AitM) phishing campaign. The rules identify unauthorized OAuth2 authorization requests to non-Microsoft hosts that match known malicious client IDs, the delivery of BitB overlay scripts, and the subsequent execution of malicious scripts correlated with OneDrive-themed lookalike redirects, indicating a credential theft attempt.
Detects an exploitation attempt against PoeLLM or LiteLLM MCP test/connection endpoint using a python3 stdio payload that fetches data from port 81.
Detects network exploitation attempts targeting Fortinet FortiOS and FortiProxy vulnerabilities (CVE-2024-55591, CVE-2025-24472) involving authentication bypass via HTTP header manipulation (Forwarded, X-Forwarded-For) and unauthorized access to the /jsconsole endpoint.
This rule detects HTTP requests containing both Content-Length and Transfer-Encoding headers, which is a technique used in HTTP Request Smuggling attacks. This specific signature targets attempts to exploit CVE-2026-88773 in Citrix NetScaler.
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