Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

40,063 detections

Detects the execution of the KRSID ransomware binary, which is written in Rust. The rule identifies the malware based on its unique file extensions, ransom note filenames, specific command-line arguments, log file indicators, and compiled code characteristics.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
005
This rule detects the addition or modification of Windows Firewall rules by applications residing in non-standard or suspicious directories. It monitors Security Events 2004, 2071, and 2097, filtering out known legitimate system paths, common temporary directories, and updates from trusted Microsoft processes such as Windows Defender, svchost.exe, and dllhost.exe. By excluding standard operating system folders and common software installation paths, the rule highlights potentially malicious attempts to establish persistence or facilitate unauthorized network communication by bypassing standard firewall management channels.
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Kaung Khant Ko@kaungkhantko
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Detections.ai Community
2 months ago
004
Detects outbound HTTP requests to identified scam infrastructure (e.g., herokuapp domains) containing platform-specific query parameters (win or mac). This behavior is indicative of a user interacting with a malicious site that is delivering an OS-tailored locker or malware payload.
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Ankit Mehta@Secvyn
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SlimKQL
1 month ago
001
Detects endpoint network connections to Heroku-hosted domains containing Google Ads tracking parameters (gclid, gad_source, gad_campaignid). This activity is associated with the initial staging phase of 'ShopEase' style malware delivery chains, where users are directed to decoy pages that prepare the environment for subsequent malicious browser-based actions.
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Ankit Mehta@Secvyn
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SlimKQL
1 month ago
101
Detects endpoint network connections to Heroku-hosted domains containing Google Ads tracking parameters (gclid, gad_source, gad_campaignid). This activity is associated with the initial staging phase of 'ShopEase' style malware delivery chains, where users are directed to decoy pages that prepare the environment for subsequent malicious browser-based actions.
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Ankit Mehta@Secvyn
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Hunters
1 month ago
001
Detects the execution of 'git checkout' commands involving 'FETCH_HEAD', initiated by Gemini or Node.js runtime environments. This pattern may indicate automated repository synchronization, potential software supply chain activity, or anomalous usage of developer tools.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
108
Detects Git command line executions involving 'branch', 'checkout', or 'push' operations that reference what appear to be full commit hashes as branch references. The rule flags instances where 'refname is ambiguous' warnings are generated, which may indicate an attempt to manipulate or interact with git repositories in ways that conflict with existing branches, potentially suggesting malicious repository tampering or discovery activity.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
008
Detects anomalous, rapid execution of a high volume of diverse offensive security tools (scanners, exploitation frameworks, and C2 agents) from a single parent process within a short window, which is characteristic of automated LLM-driven orchestration or scripted attack tool chaining.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects endpoint behavior consistent with AI-assisted exploit development, characterized by the execution of reverse engineering and vulnerability research tools (e.g., IDA Pro, Ghidra, AFL) interleaved with frequent outbound network connections to LLM APIs, followed by the local compilation of a new executable or DLL.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects anomalous, high-volume file access by a single process, followed by local file compression or archiving, and subsequent outbound data transfer to a non-internal IP address. This pattern is characteristic of automated agents (like those used in the GTG-1002/Anthropic AI-orchestrated campaigns) performing rapid data triage and staging for exfiltration.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects the execution of common remote monitoring and management (RMM) software on a host shortly after the associated user account underwent a password or MFA reset, a pattern indicative of help-desk impersonation (vishing) followed by unauthorized remote access setup.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects ZIP archives exceeding 100MB that contain specific DLL filenames often used for junk-padding to evade sandbox analysis. This technique is observed in brand-impersonation campaigns targeting users with fake security or authentication software lures.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
003
Detects the execution of known remote access or remote monitoring software (such as TeamViewer, AnyDesk, or ScreenConnect) on corporate-issued Windows endpoints. The rule triggers on process execution patterns associated with unauthorized remote control, specifically looking for indicators of unattended access or silent installation commonly used by overseas actors to remotely operate company-issued laptops assigned to fraudulently hired identities.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
003
Detects the execution of known remote access or remote monitoring software (such as TeamViewer, AnyDesk, or ScreenConnect) on corporate-issued Windows endpoints. The rule triggers on process execution patterns associated with unauthorized remote control, specifically looking for indicators of unattended access or silent installation commonly used by overseas actors to remotely operate company-issued laptops assigned to fraudulently hired identities.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
003
Detects instances where Microsoft Visual Studio Code (Code.exe) spawns common interpreters or command-line tools (such as node, python, cmd, or powershell) that are not associated with known internal VS Code process behaviors like renderer tasks or tunnel operations. This activity may indicate malicious use of the integrated terminal or extension execution contexts to execute unauthorized code.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
003
Detects instances where node.exe or npm processes spawn a Python interpreter. This behavior is indicative of malicious activity, specifically the execution of second-stage payloads such as the InvisibleFerret backdoor often associated with the BeaverTail JavaScript loader, observed in software supply chain compromise campaigns.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
003
Detects the creation or modification of registry entries within the 'HKCU\...\Run' hive that point to executables located in suspicious or atypical directories such as 'ProgramData', 'Users\All Users', or specific non-standard application paths often used by malware for persistence.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
003
Detects instances where a desktop messaging application (WhatsApp or Telegram) spawns a child process that matches known suspicious naming conventions or lure keywords, suggesting that a user has executed a malicious file shared via the platform.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
003
Detects the use of PowerShell to modify Microsoft Defender preferences by adding exclusion paths, processes, or extensions shortly after the creation of Registry Run keys. This sequence is characteristic of post-exploitation activity where an adversary establishes persistence and subsequently attempts to neutralize security software monitoring of their malicious payloads to avoid detection during future execution.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
003
Detects execution of PowerShell commands that utilize hidden window styles and encoded payloads, specifically when the command line or image path references 'WindowsUpdate.log'. This pattern is often used by adversaries to hide malicious scripts and potentially interact with logs in an attempt to masquerade or tamper with Windows Update processes.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
009
Detects the creation of image files (.bmp, .png, .jpg, .jpeg) by processes executing from non-standard directories such as AppData or ProgramData. This behavior is indicative of unauthorized screen capture activities often used by malware for pattern-of-life monitoring, where screenshots are staged in temporary locations before exfiltration. The rule filters out common legitimate applications known to perform screen captures.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
003
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