Detections

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

7,139 detections

Detects interaction with known infrastructure associated with the PREY-0058 campaign, which utilizes Adversary-in-the-Middle (AiTM) phishing lures mimicking passkey or MFA registration pages to target Microsoft 365 and other SaaS applications.
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Ankit Mehta@Secvyn
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Detection & Hunting Community
1 month ago
001
Detects network connection attempts or established connections to a specific remote IP (103.141.13.26) on UDP port 3479. This pattern is often associated with command and control infrastructure or unauthorized data communication.
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Ankit Mehta@Secvyn
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SlimKQL
2 months ago
103
Identifies instances of Google Chrome running on endpoints with version numbers below the threshold patched for CVE-2026-85046. This detection focuses on specific build numbers (e.g., 152.0.7977.82 for Windows/Linux) to identify potentially vulnerable browser installations in the environment.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
202
Identifies devices running versions of Chromium-based browsers (such as Chrome) vulnerable to CVE-2026-85046, a V8 type confusion vulnerability that allows remote code execution within the browser sandbox.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
202
Detects cached malicious dlp.sh/dlp-docker.sh Terraform module artifacts served from the compromised registry.coder.com infrastructure
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
This rule detects potentially unauthorized access or attempts to copy sensitive SSH keys (e.g., id_rsa, id_ed25519) by command-line utilities (such as cat, cp, tar, scp, or curl) or when triggered by automation-related process names like 'terraform'. It monitors both process command lines and file events to identify staging or exfiltration activities.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
003
This rule detects potentially unauthorized access or attempts to copy sensitive SSH keys (e.g., id_rsa, id_ed25519) by command-line utilities (such as cat, cp, tar, scp, or curl) or when triggered by automation-related process names like 'terraform'. It monitors both process command lines and file events to identify staging or exfiltration activities.
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Arnold Chan@slaz
Defender - KQL
2 months ago
003
Detects network activity from infrastructure provisioner tools (Terraform, Coder) or shell processes attempting to connect to suspicious domains (e.g., coder-infra.com) that resemble legitimate infrastructure domains. This activity is indicative of credential theft, specifically targeting OIDC tokens, SSH keys, or authentication tokens during automated provisioning processes.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
003
Detects Java-based Metasploit/Meterpreter payload files (.class/.jar) dropped post-exploitation, as observed following PaperCut RCE exploitation chain
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Arnold Chan@slaz
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Hunters
1 month ago
000
Detects execution of shell scripts where a remote resource is fetched via curl with silent flags and immediately piped into a shell interpreter. This pattern is commonly associated with the delivery of malicious payloads or installation of unauthorized tools.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
2 months ago
107
Detects anomalous outbound network connections from the Grafana MCP (Model Context Protocol) server process to internal private IP address ranges. The rule compares current network activity against a 14-day baseline to filter out known data sources, identifying potentially unauthorized lateral movement or internal network probing via server-side request forgery (SSRF) vulnerabilities.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
104
Detects Server-Side Request Forgery (SSRF) attempts targeting vulnerable versions of Grafana MCP Server (versions < 1.1.0). The rule identifies requests attempting to access sensitive internal or cloud-metadata endpoints (e.g., 169.254.169.254, localhost, internal subnets) via the X-Grafana-URL header.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
004
This rule detects attempts by users to disable or clear command line history logs for shell environments, including PowerShell (e.g., modifying PSReadLine history) and Unix-like shells (e.g., unset HISTFILE, setting HISTSIZE to 0, or disabling history collection). Such actions are frequently performed by adversaries to hinder incident response and forensic analysis by obscuring their post-exploitation activity.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
002
This rule detects attempts by users to disable or clear command line history logs for shell environments, including PowerShell (e.g., modifying PSReadLine history) and Unix-like shells (e.g., unset HISTFILE, setting HISTSIZE to 0, or disabling history collection). Such actions are frequently performed by adversaries to hinder incident response and forensic analysis by obscuring their post-exploitation activity.
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Arnold Chan@slaz
Defender - KQL
1 month ago
202
This rule detects attempts by users to disable or clear command line history logs for shell environments, including PowerShell (e.g., modifying PSReadLine history) and Unix-like shells (e.g., unset HISTFILE, setting HISTSIZE to 0, or disabling history collection). Such actions are frequently performed by adversaries to hinder incident response and forensic analysis by obscuring their post-exploitation activity.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
002
Detects the disabling of host-based firewalls (Windows Filtering Platform/Advanced Firewall, iptables, or nftables) via command-line tools. The rule excludes common management tools, system accounts, and events where the firewall is re-enabled within a short timeframe, effectively filtering for potentially unauthorized attempts to impair security defenses.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
002
Detects command-line execution of tools (route, netsh, sysctl) intended to modify host routing tables or enable IP forwarding. Such activity on workstation endpoints may indicate an attempt to bridge network segments, bypass network security boundaries, or facilitate lateral movement/C2 communications.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
002
Detects command-line execution of tools (route, netsh, sysctl) intended to modify host routing tables or enable IP forwarding. Such activity on workstation endpoints may indicate an attempt to bridge network segments, bypass network security boundaries, or facilitate lateral movement/C2 communications.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
002
Detects potential remote service session hijacking by monitoring for RDP session ID reuse by a different user or unauthorized SSH session reattachment (e.g., tmux/screen hijacking). It correlates logon events with process execution to identify instances where an existing session is accessed by an account other than the original owner, while excluding legitimate service/support account activity.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
002
Detects potential remote service session hijacking by monitoring for RDP session ID reuse by a different user or unauthorized SSH session reattachment (e.g., tmux/screen hijacking). It correlates logon events with process execution to identify instances where an existing session is accessed by an account other than the original owner, while excluding legitimate service/support account activity.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
002
Detects evidence of persistence mechanisms associated with the StyleSmuggler implant. The rule monitors for malicious crontab entries and file system activity related to gvfsd-user, .gvfsd, and /tmp/.kw_ artifacts.
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Arnold Chan@slaz
Defender - KQL
2 months ago
004
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