Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
1,252 detections
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This rule monitors Cisco Unified Communications Manager (UCM) environments for multiple stages of an attack chain, including potential Server-Side Request Forgery (SSRF) attempts against administrative interfaces, suspicious file modifications by service accounts, indicators of privilege escalation, and anomalous outbound network connections from core Cisco processes.
Detects a network-connected Linux process exhibiting beaconing behavior (high-frequency external connections) that is subsequently correlated with unauthorized file access to sensitive Linux configuration files (/etc/passwd, /etc/shadow, or authorized_keys). This rule filters out common system processes and standard management binaries, targeting suspicious command-and-control activity combined with credential theft.
Detects network activity associated with Cobalt Strike Beacon behavior by identifying specific file extensions (.bin, .stager, .update, .task, .post) commonly used in Beacon staging and communication profiles within network inspection events.
This rule detects multiple outbound network connections to a specific set of known malicious C2 IP addresses on specific ports within a one-hour window. This behavior is indicative of a multi-payload delivery pattern associated with malware families such as Remcos, Agent Tesla, and RedLine.
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 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.
PlugX C2Beacon
YARA
Modular remote access trojan associated with long-term espionage intrusions
Loader used in click-hijacking traffic distribution scheme
IoT botnet malware family used for DDoS and proxy infrastructure
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
This rule detects two stages of a potential exploitation chain targeting vLLM multimodal endpoints. Stage 1 identifies POST requests to vLLM API endpoints that contain 'video_url' in the request context, which could indicate an attempt to exploit CVE-2026-22778. Stage 2 detects post-exploitation activity by looking for unexpected child processes (like shell interpreters or download utilities) spawned from vLLM or Python inference processes, suggesting successful remote code execution.
Banking trojan and loader using malicious Office macro delivery
Banking trojan and loader using malicious Office macro delivery
This rule monitors for processes that establish a network connection to specific Cloudflare IP address ranges (104.21.0.0/16 and 172.67.0.0/16) within a 5-minute window. This can be indicative of communication with command and control infrastructure, proxies, or content delivery networks used by adversaries.
Open-source derived remote access trojan with plugin architecture
Open-source derived remote access trojan with plugin architecture
Detects the execution of known Command and Control (C2) frameworks such as Sliver, Havoc, SparkRAT, or VShell from common suspicious temporary or staging directories (temp, tmp, appdata, programdata). This rule monitors process creation events to identify the presence of these unauthorized remote access tools.
Detects execution of the Tailscale or Tailscaled process that is not initiated by standard system or management processes. This may indicate unauthorized installation or use of the Tailscale VPN software for covert command and control or lateral movement, especially when combined with immediate network activity to Tailscale infrastructure or ports.
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