Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
5,879 detections
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Detects the creation, modification, or execution of a hidden file named '.rc' located in '/usr/local/bin/'. This behavior is suspicious as it may indicate an attempt to establish persistence or run malicious scripts via hidden configuration files, especially when performed by non-standard installers.
This rule detects HTTP GET requests resulting in the download of an Android Package (.apk) file where the host is not a known official Google Play or reputable third-party application distribution source. It further validates the detection by inspecting the HTTP response headers for the specific Android application package MIME type and the response body for indicators commonly associated with fake branded application portals.
This rule detects HTTP GET requests resulting in the download of an Android Package (.apk) file where the host is not a known official Google Play or reputable third-party application distribution source. It further validates the detection by inspecting the HTTP response headers for the specific Android application package MIME type and the response body for indicators commonly associated with fake branded application portals.
Detects execution of the s5cmd command-line tool performing synchronization, copy, or move operations to a cloud storage URI (s3://) followed by an outbound network connection on port 443 within a 10-minute window. This behavior is indicative of potential data exfiltration to cloud storage.
Detects outbound network traffic attempting to access lookalike subdomains mimicking Okta or Microsoft 365 identity provider login pages. This behavior is associated with adversary-in-the-middle (AiTM) phishing campaigns, such as those attributed to UNC6671, where attackers use spoofed infrastructure to capture user credentials and session tokens.
Detects outbound network traffic attempting to access lookalike subdomains mimicking Okta or Microsoft 365 identity provider login pages. This behavior is associated with adversary-in-the-middle (AiTM) phishing campaigns, such as those attributed to UNC6671, where attackers use spoofed infrastructure to capture user credentials and session tokens.
This rule detects network connections or process command lines associated with known malicious domains, IP addresses, or payload URLs. Additionally, it correlates connections to common public file-sharing platforms or APIs (e.g., Gofile, Telegram) if these events occur on the same device within a 60-minute window of a confirmed malicious infrastructure event, reducing false positives from legitimate uses of shared infrastructure.
Detects outbound HTTP requests to the Telegram Bot API associated with the malicious 'indexed-btree' npm package. The rule specifically monitors for hardcoded Telegram bot tokens and chat IDs used for 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 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 known public Ethereum RPC gateways (Alchemy and Infura) containing embedded, hardcoded API keys or references to specific contract addresses associated with the 'indexed-btree' malware campaign. This pattern indicates a compromised host leveraging legitimate Web3 infrastructure for Command and Control (C2) communication.
Detects outbound HTTP POST requests to known public Ethereum RPC gateways (Alchemy and Infura) containing embedded, hardcoded API keys or references to specific contract addresses associated with the 'indexed-btree' malware campaign. This pattern indicates a compromised host leveraging legitimate Web3 infrastructure for Command and Control (C2) communication.
This rule detects a correlation between host-level reconnaissance activity using WMI (via PowerShell or WMIC) to query system information, followed by network exfiltration to a known C2 IP address over a specific URI within a 10-minute window.
Detects high-volume outbound network traffic (exceeding 100MB) generated by processes identifying as 'python-httpx' to non-internal IP addresses. This activity is often associated with automated data exfiltration using Python-based tools.
Detects network activity related to the SilverFox modular malware framework, including relay/dispatcher discovery, contact with known C2 infrastructure (noah-ssh.com.cn and Cloudflare Workers), and specific HTTP response patterns associated with its relay discovery process.
Detects outbound HTTP requests to known domains or domains following a specific URI pattern associated with the delivery of SilverFox malware payloads.
This rule identifies successful network connections from local devices to a predefined list of known malicious IP addresses within the last 7 days. Such connections often indicate active communication between a compromised endpoint and adversary-controlled infrastructure.
Detects outbound network connections from endpoints to domains and IP addresses associated with the Kimsuky (APT43) threat actor group. This rule leverages endpoint network telemetry to identify potential command and control (C2) communication or data exfiltration activities.
This rule monitors for file creation or modification events related to the Admin Menu Editor Pro WordPress plugin, specifically looking for indicators of specific versions (2.35, 2.36) or file naming conventions. It also alerts on network communication to the plugin's domain, which could indicate a compromise or the use of an unauthorized or modified plugin version that may be associated with known vulnerabilities.
Detects activity associated with the 'MovieReaper' threat campaign by identifying known malicious file hashes, command and control (C2) IP addresses, and communication with identified malicious domains. This rule monitors process execution, file operations, and network connections within the campaign's active timeframe.
Detects high-frequency outbound TCP connection attempts from a WSO2 API Gateway or Traffic Manager host to multiple sensitive internal management and administrative ports (22, 445, 3389, 5985, 5986). This behavior is indicative of a compromised gateway being used for lateral movement across the network.
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