Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects Windows executable downloads with document or image file extensions, a common malware delivery technique
This rule detects potential Browser-in-the-Browser (BITB) phishing attacks, specifically targeting the 'Sneaky2FA' technique. It looks for HTTP responses containing an iframe, base64 encoded image data, and the string ';base64,', which are indicators of a malicious page attempting to mimic a legitimate login portal within an iframe to steal credentials.
Detects large HTTP responses for URLs containing keywords associated with F5 BIG-IP configuration or archive files. This could indicate an attacker exfiltrating sensitive system configurations.
Detects FileFix campaigns that use clipboard manipulation functions in web pages to deliver malicious PowerShell commands. These campaigns often trick users into copying and executing payloads, sometimes involving steganography with image files.
This rule detects an attempt to exploit a path traversal vulnerability (CVE-2025-8088) in RAR files delivered via HTTP. The exploit leverages Alternate Data Streams (ADS) and specific path traversal patterns to potentially write files outside of the intended directory. The detection is based on the presence of 'STM' in the HTTP response body and a PCRE regex matching a specific path traversal pattern.
ET MOBILE_MALWARE Android/TrickMo.Banker Config Response
This rule detects the 'Get-ScheduledTask' PowerShell cmdlet within the HTTP response body, specifically when the HTTP status code is 200. This could indicate an attacker enumerating scheduled tasks on a compromised system via a web-based command and control channel or data exfiltration.
ET ATTACK_RESPONSE ClickFix MSHTA Command Inbound
ET ATTACK_RESPONSE HTML Smuggling Powershell Payload In href
ET ATTACK_RESPONSE ClickFix Obfuscated Payload Inbound
This rule detects suspicious WebAssembly (WASM) code in HTTP responses that indicates the allocation of Read-Write-Execute (RWX) memory pages. This pattern is a common precursor to shellcode execution within a web browser, often used by exploit kits or malicious websites to achieve arbitrary code execution. The rule specifically looks for JavaScript code that initializes a WebAssembly module with a byte array containing specific patterns indicative of RWX memory allocation, followed by instantiation and export calls.
This rule detects the presence of the 'Unregister-ScheduledTask' PowerShell cmdlet within the HTTP response body. This could indicate an attacker attempting to remove persistence mechanisms, specifically scheduled tasks, from a compromised system after initial compromise or during cleanup phases. The detection is case-insensitive and looks for the command along with optional parameters like '-taskname' or '-taskpath'.
This rule detects the presence of the 'schtasks /change' command within the HTTP response body. This could indicate an attacker modifying scheduled tasks on a compromised Windows system, potentially for persistence, privilege escalation, or lateral movement. The detection specifically looks for 'schtasks' and '/change' followed by '/tn' (task name) in a case-insensitive manner within HTTP responses with a 200 status code.
ET ATTACK_RESPONSE ClickFix Related Payload Inbound
ET ATTACK_RESPONSE ClickFix Webpage Inbound
ET ATTACK_RESPONSE Koi Loader/Stealer Payload Inbound
This rule detects attempts to exploit CVE-2024-30043, a vulnerability in Microsoft SharePoint's SPXmlDataSource that allows for XML External Entity (XXE) injection. The rule specifically looks for HTTP responses containing SharePoint XML data source declarations and a 'DataFile' attribute with a path that starts with 'file://', 'smb://', or '\\', indicating an attempt to fetch local or network files.
ET MALWARE Observed VBScript Payload Downloader Inbound
ET MALWARE MEOWBACKCONN CnC Checkin - Server Response
ET ATTACK_RESPONSE Lumma Stealer Payload Inbound
ET ATTACK_RESPONSE Observed ClickFix Landing Page Inbound
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