Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects HTTP POST requests to Vercel-hosted domains containing suspected phishing telemetry (such as device fingerprinting, keystrokes, and user agent collection) originated from a Google Sites frame. This is a common pattern for phishing kits masquerading as legitimate Ledger service pages to harvest credentials and hardware information.
Detects HTTP POST requests containing potential credential exfiltration indicators, specifically targeting the '/google.php' endpoint with 'do=login&', 'user=', and 'pass=' parameters. This pattern is associated with FlowerStorm (Storm-1167) AiTM phishing kits.
Detects HTTP requests containing malicious JDBC strings targeting PaperCut NG/MF print management software, which are indicative of attempts to exploit authentication bypass and remote code execution vulnerabilities (CVE-2026-81578, CVE-2026-82078).
Detects network activity associated with the FlowerStorm/Storm-1167 phishing campaign. The rule monitors for credential exfiltration to a specific malicious URI (e.g., /google.php) containing login parameters, as well as the delivery of spoofed Microsoft sign-in pages from the associated phishing infrastructure.
Detects HTTP GET requests to '/api.php?t=' containing a 13-digit timestamp identifier, followed by a response body containing 'download_link'. This pattern is indicative of the SilverFox malware relaying instructions or stage-two payload delivery.
Detects network activity (TCP, DNS, TLS, HTTP) associated with the UNC6240 threat actor's infrastructure, specifically targeting communications with known malicious IP addresses and domains used in a campaign leveraging PeopleSoft-related lures.
Detects network communication with 10729e014d0e.skyleen.fr, associated with the SCKIT malware downloading binaries during CI/CD emitter activities. This rule flags potential ingress tool transfers as part of a supply chain compromise campaign identified as 'memos-semi-nuclear'.
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 malicious HTTP POST requests targeting SharePoint servers that attempt to inject 'Register' directives into pages or manipulate WebPartPage ToolPane markup, indicative of attempts to bypass SafeControls or exploit vulnerable SharePoint features for code execution.
Detects network traffic associated with the Exvicy malware delivery chain. The rule identifies two behaviors: first, HTTP GET requests to a '/embed/' endpoint with specific 'embed=1' and 'host=cloudflare-check.net' parameters, and second, established TCP connections to a known command and control (C2) IP address related to the ClickFix social engineering delivery method.
Detects anomalous outbound HTTP POST requests containing sensitive file extensions or keywords (e.g., .docx, password, credentials) triggered by Python-based clients, followed by a potential exfiltration beacon response containing JSON file path data.
Detects network traffic associated with the XWorm v7.4 Remote Access Trojan (RAT) encrypted plugin C2 channel. The rule monitors for a specific hex pattern ('58 57') at the beginning of TCP payloads directed to known non-standard ports (7000, 8808, 9999) with a payload size constraint, indicating potential command-and-control communication.
Detects outbound HTTP POST requests associated with the Telepuz modular loader. The rule monitors for specific URI patterns, request body parameters, and suspicious User-Agent strings indicative of PowerShell or MSHTA command-and-control communication.
Detects outbound HTTP POST requests associated with Cicada3301 ransomware affiliate check-in behavior. The rule monitors for a specific 'X-Session-Id' HTTP header and a corresponding 'affiliate_id' parameter within the request body, which are indicative of malicious C2 communication.
Detects outbound network traffic from internal servers to known Remote Monitoring and Management (RMM) platforms (AnyDesk, ScreenConnect, Atera). This activity is often used by adversaries to establish covert command and control (C2) channels and remote access to internal resources.
Detects network activity related to the BEAST ransomware targeting VMware ESXi systems. The rule identifies attempts to stage encryption operations via SSH, including detecting references to known filenames ('encryptor.elf', 'beast_esxi') and the use of the 'vim-cmd' utility to power off virtual machines as part of the preparation for file encryption.
Detects the presence of an injected script tag containing 'ganalytics-tracker-js' in HTTP server responses, a pattern commonly associated with 'ClickFix' social engineering attacks where users are tricked into copying and executing malicious commands.
Detects HTTP traffic related to the Macfinger/ClickFix campaign, where malicious injected scripts or dns-prefetch entries point to known attacker-controlled infrastructure (velvet-otter-glagceis.life) or assets utilized for social engineering and malicious copy-paste exploitation.
Detects outbound HTTP POST requests directed at the '/api/credentials' URI, a pattern associated with AMOS Stealer credential exfiltration. The rule includes a threshold to reduce noise by alerting only when multiple requests occur from a single source within a short timeframe.
This rule detects network activity associated with the Sauron Loader malware. It monitors for TLS connections to known hardcoded C2 domains and identifies HTTP requests following a specific pattern of randomized command and control (C2) paths combined with suspicious User-Agent headers (Windows NT with Edge/Edg).
This rule detects HTTP GET requests to a specific GitHub repository path (raw.githubusercontent.com/omskiwdcvoiuyfd0998/) identified as staging infrastructure associated with Konni/VelvetCake malware operations. This activity is indicative of a compromised host attempting to download malicious payloads or stage tools from actor-controlled infrastructure.
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