Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects explorer.exe making DNS requests to Discord or Telegram, which is anomalous and indicates potential process injection for data exfiltration. This behavior is associated with information stealer malware like Phantom Stealer.
Identifies file, registry, network, and process indicators associated with the @mastra/* npm supply chain compromise. This rule detects the presence of specific malicious files, registry modifications for persistence, outbound network connections to known command and control (C2) infrastructure, and the execution of malicious scripts related to the attack.
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.
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 potential unauthorized cryptocurrency mining activity by correlating process execution, network connections to known mining pools or C2 IPs, and the presence of known miner binaries in temporary directories. The rule calculates a confidence score based on the overlap of these behavioral indicators.
Detects periodic beaconing behavior associated with a Lambsys Go-based implant communicating with a specific C2 IP address (83.142.209.214) over HTTP. The rule identifies POST requests to specific paths ('/status.php' or '/setup_status.php') using the 'Go-http-client/1.1' User-Agent, with evidence of repeated connection attempts.
Detects outbound network connections to 'stitch-production.org' or connections by node/bun runtime processes to GitHub API or 'stitch-production.org', which may indicate command and control communication or data exfiltration.
This rule detects PowerShell activity where commands are used to perform reconnaissance (e.g., whoami, ipconfig, or network group enumeration) and the output is exfiltrated or sent via a POST request to a specific external IP address (202.182.102.5).
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 the download, staging, and execution of SoftEther VPN components associated with CL-STA-1062. The rule monitors for the creation of specific SoftEther files, network downloads from known actor staging infrastructure, and the execution of SoftEther binaries masquerading as VMware tools (vmtools.exe).
Detects network activity associated with Gamaredon threat group backdoors (PteroVDoor and PteroPSDoor) exfiltrating data to S3-compatible cloud storage providers. The rule identifies suspicious outbound network requests to specific domains ('wasabisys.com', 'i3storage.com') originating from processes that are not common browsers or trusted software, or by command-line execution of PowerShell, curl, or wget.
Detects execution patterns associated with the Gamaredon group's spearphishing chains, specifically where PowerShell is invoked by common document or scripting applications (Winword, Excel, mshta, etc.) containing typical downloader flags (IEX, EncodedCommand). Additionally, it monitors for network connections from PowerShell to known dead-drop resolvers (e.g., telegra.ph, cloudflare workers) used by PteroOdd/Kazuar loaders.
PlugX C2Beacon
YARA
Modular remote access trojan associated with long-term espionage intrusions
Photo-themed ZIP phishing campaign dropping a Node.js implant
Stealthy backdoor MLTBackdoor linked to KongTuke ClickFix and ModeloRAT campaigns
Lightweight remote access trojan deployed in recruiter-themed social engineering
Cloud extortion group exploiting exposed credentials and storage
Latin American banking trojan using DLL side-loading and overlay attacks
Banking trojan and loader using malicious Office macro delivery
Form-grabbing and credential stealing malware-as-a-service
Banking trojan and loader using malicious Office macro delivery
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