Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects signs of Grixba malware activity, including process execution of Gt_net.exe from the Public/Music directory, associated WMI/WinRM remote network connections, and the creation of staging artifacts such as data.zip or ExportData.db.
Detects access or creation of 'mcp.json' files within the '.amazonq' directory immediately following a 'git clone' operation. This sequence may indicate potential unauthorized access or exfiltration of Amazon Q assistant configurations or cached data associated with development environments.
This rule detects the creation of image files (bmp, png, jpg, jpeg) within temporary or application data directories, while simultaneously monitoring for network connections to known command-and-control (C2) infrastructure (IP 223.26.63.40 or port 2671). The rule calculates a risk score based on the correlation of these events within a 30-second window, excluding common benign screenshot utility processes.
Detects malicious behavior attributed to the Miasma/TonRAT malware, specifically targeting node.js or bun.exe runtime environments. The rule identifies suspicious network connections to command and control (C2) domains, access to sensitive developer credential files (e.g., .npmrc, .aws/credentials), execution of identified credential-harvesting functions in process command lines, and the execution of specific suspicious preinstall scripts.
Detects suspicious screen capture activity by non-UI processes. This rule identifies instances where a process invokes GDI BitBlt/PrintWindow or CopyFromScreen APIs, followed by writing a JPEG screenshot file to disk, particularly from temporary or program data folders. This behavior is consistent with infostealers like StealC and Amadey.
Form-grabbing and credential stealing malware-as-a-service
Form-grabbing and credential stealing malware-as-a-service
AI-powered phishing-as-a-service abusing device-code authentication
Credential and browser data stealer distributed via OXLOADER campaigns
This rule detects when a user or administrator grants consent to an Azure AD or Office 365 application for permissions that provide significant access to mail, files, contacts, or directory data. This activity is a common vector for illicit OAuth consent attacks, where adversaries gain persistent access to sensitive data without requiring direct user credentials.
Detects anomalous activity where a single user or service principal downloads more than 5 Microsoft Teams meeting recordings within a 1-hour window. This behavior potentially indicates an insider threat or compromised account performing bulk harvesting of sensitive meeting content.
Detects suspicious access to wermgr.exe involving Alternate Data Streams (ADS) using the WDFOO tag, or access via Volume Shadow Copy (VSS) paths, often indicative of exploitation attempts related to CVE-2026-50656 where an adversary uses oplocks for race conditions against Windows Defender.
Detects anomalous or suspicious behavior from Microsoft 365 Copilot agents, plugins, or sessions. This includes bulk access to files containing sensitive keywords, unauthorized export or sharing of sensitivity-labeled documents, and high-volume Microsoft Graph API read activity targeting sensitive paths in SharePoint or OneDrive.
Detects anomalous process behavior characterized by rapid access to multiple sensitive credential files or enumeration of critical environment variables (e.g., cloud, AI, or cryptocurrency wallet keys). This behavior aligns with the mass credential harvesting techniques observed in the IronWorm/Shai-Hulud campaign.
Clipboard hijacking malware for cryptocurrency address substitution
Clipboard hijacking malware for cryptocurrency address substitution
Commodity .NET keylogger and remote access trojan
Clipboard hijacking malware for cryptocurrency address substitution
Clipboard hijacking malware for cryptocurrency address substitution
Detects Entra ID guest (B2B) users performing a sign-in from a previously unseen IP address or country (observed over the last 30 days), followed within a 4-hour window by sensitive file operations in SharePoint, OneDrive, or Teams (e.g., file downloads, exports, or sensitivity label changes). This pattern is indicative of potential account takeover or unauthorized access to sensitive corporate data.
Detects node.exe copying browser history files to temporary directories, associated with the protocal.cjs backdoor.
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