Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects DNS queries, TLS SNI headers, and HTTP host headers associated with identified C2 infrastructure for NetSupport Manager malware, specifically domains themed around 'GTA6'. These indicators are used by attackers for command and control communication.
Detects incoming HTTP requests to Microsoft Exchange servers that match patterns indicative of exploitation attempts for the ProxyLogon SSRF vulnerability (CVE-2021-26855). This includes detecting specific manipulation of the Autodiscover service and the injection of X-BEResource or X-AnonResource-Backend headers, which were commonly used during the initial access phase of this campaign.
Hunts network, HTTP, and email-URL telemetry for known ARToken infrastructure (operator backend IPs and phishing/panel domains). Bounded to a 30-day lookback and tiers matches by confidence: domain hits are high-confidence (attacker-registered infrastructure), while IP hits are medium-confidence since the IPs sit on shared DigitalOcean hosting that can be reassigned to unrelated tenants once ARToken's infrastructure is taken down. Empty/unparsed indicator fields are excluded to avoid spurious matches in the HTTP event parsing branch. No known file hashes are associated with this intel.
Hunts network, HTTP, and email-URL telemetry for known ARToken infrastructure (operator backend IPs and phishing/panel domains). Bounded to a 30-day lookback and tiers matches by confidence: domain hits are high-confidence (attacker-registered infrastructure), while IP hits are medium-confidence since the IPs sit on shared DigitalOcean hosting that can be reassigned to unrelated tenants once ARToken's infrastructure is taken down. Empty/unparsed indicator fields are excluded to avoid spurious matches in the HTTP event parsing branch. No known file hashes are associated with this intel.
Detects attempts to bypass authentication on Nacos servers, including the use of spoofed Nacos-Server User-Agent headers, suspicious API query patterns missing required access tokens, and the subsequent use of forged JWT tokens signed with default keys.
Detects unauthenticated HTTP POST requests targeting the FortiGate administrative API (/api/v2/), which may indicate exploitation attempts related to CVE-2025-25249. The rule specifically looks for requests lacking authentication headers (Cookie or Authorization).
Detects HTTP GET requests to a specific URL path containing an image file, which is associated with the delivery of the LausivLoader malware. The rule monitors for external connections to the domain 'yapw.life' requesting a PNG file, a technique often used for steganographic payload delivery.
Detects network traffic associated with SilkParasite SpiceRAT malware, including direct IP connections, DNS queries for known malicious domains, and corresponding TLS SNI or HTTP Host header metadata indicating command-and-control (C2) activity.
Detects high-frequency HTTP requests to the Dahua easy4ipcloud.com password recovery endpoint. The rule monitors for abnormal volumes of reset requests from a single IP address, which is indicative of an attacker attempting to use offline-generated recovery codes to bypass authentication on Dahua IoT devices.
Detects anomalous, high-frequency, and highly regular HTTP requests directed at Dahua camera infrastructure for the purpose of harvesting snapshots. The rule uses statistical analysis to identify automated collection patterns, such as a high volume of requests across multiple devices with low variance in request intervals.
Detects HTTP traffic to the Telegram Bot API (/sendPhoto) originating from internal network hosts, which is indicative of potential exfiltration of captured images (e.g., screenshots or webcam captures) to an adversary-controlled Telegram channel.
Detects network traffic (DNS queries, TLS SNI, and HTTP Host headers) targeting the domain 'expresshost.cloud', which is identified as hosting VPS infrastructure commonly used for scanning and malicious activities.
Detects network activity related to the exploitation of Dahua P2P relay services via easy4ipcloud.com. The rule monitors for unauthorized device probing, serial number enumeration, and illicit relay authentication attempts (e.g., using DHP2P protocols and X-WSSE authentication), which are indicative of attackers attempting to abuse IoT device remote access functionality (CVE-2025-31702).
Detects network activity related to 'ClickFix' social engineering campaigns. The rules monitor for DNS queries, TLS SNI requests, and HTTP requests to the malicious domain 'cdnsuicaches.com' used for hosting malicious scripts, as well as the identification of the 'cookie-captcha-complete' string in HTTP traffic, which is a known indicator of a ClickFix social engineering overlay.
Detects outbound HTTP POST requests to the Telegram Bot API (/sendPhoto) that contain sensitive system information, including host credentials (port, login, password) and Shodan host data. This behavior is indicative of an information-stealing malware attempting to exfiltrate captured credentials via a Telegram bot.
Detects periodic beaconing and C2 communication patterns associated with the RapidRust Golang RAT, attributed to the APT36 (Transparent Tribe) threat group. The rule monitors for specific DNS queries to typosquatted domains, TLS SNI mismatches, and specific HTTP API polling activities commonly used by this malware for C2 tasking.
Detects high-frequency, diverse Microsoft Graph API requests initiated by an identity, indicative of automated reconnaissance or enumeration of the cloud environment. The rule tracks requests across multiple categories such as organization settings, user/group identities, privilege information, application configurations, and resource access within a 30-minute window.
Detects unauthenticated path traversal attempts targeting the GitLab repository commits API, specifically checking for URL-encoded and plain path traversal patterns (e.g., '../') in requests to the commits endpoint. This behavior is indicative of attempts to exploit vulnerabilities like CVE-2026-85706 to read arbitrary files outside the repository scope.
Detects successful POST requests to the WordPress admin-ajax.php endpoint utilizing the 'wwlc_file_upload_handler' action with an empty referrer header. This pattern is characteristic of attackers attempting to upload malicious files via vulnerable WordPress plugins to establish web shell persistence.
Detects a suspicious web navigation pattern indicative of NovaCookies or similar AiTM (Adversary-in-the-Middle) phishing infrastructure. The rule correlates a legitimate website visit with an immediate subsequent request to a .vu domain, within a short time window (30 seconds), using the same process (e.g., browser process). This identifies the redirect chain from a legitimate host to a disposable phishing landing page commonly used for credential harvesting.
Detects successful POST requests to the WordPress admin-ajax.php endpoint utilizing the 'wwlc_file_upload_handler' action with an empty referrer header. This pattern is characteristic of attackers attempting to upload malicious files via vulnerable WordPress plugins to establish web shell persistence.
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