Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
1,252 detections
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This rule detects the execution of a file named 'report.bin' and correlates it with subsequent network connections originating from the same process. This behavior is indicative of a potential C2 heartbeat or exfiltration activity involving a non-standard or obfuscated executable.
This rule monitors for two distinct indicators of compromise: it detects the execution of files dropped into specific patterns within the 'AppData\Roaming' directory (associated with potential GoCaracal malware) and identifies network connections to known C2 infrastructure associated with GoCaracal and Bandook malware families.
Detects anomalous use of the 'X-Grafana-URL' header in conjunction with an 'Authorization: Bearer' token, indicative of an attempt to exfiltrate a service account token to an unauthorized or external domain, exploiting CVE-2026-15583.
Detects the creation of a Linux named pipe (mkfifo) used in conjunction with netcat (nc) to establish a reverse shell connection to a specific C2 IP address or port 3090. This combination of commands is a common technique used by attackers to achieve remote command execution.
Detects the creation of a Linux named pipe (mkfifo) used in conjunction with netcat (nc) to establish a reverse shell connection to a specific C2 IP address or port 3090. This combination of commands is a common technique used by attackers to achieve remote command execution.
This rule detects the execution of a file named 'report.bin' and correlates it with subsequent network connections originating from the same process. This behavior is indicative of a potential C2 heartbeat or exfiltration activity involving a non-standard or obfuscated executable.
This rule detects potential exploitation or unauthorized interaction with an HAProxy service. It correlates process execution on Linux systems involving the HAProxy PID file with subsequent network traffic containing the suspicious string 'writeservice_info' within a one-hour window.
Detects the execution of Terraform commands (init, apply, plan) that interact with the 'registry.coder.com' domain, or direct network connections to the associated infrastructure. This may indicate the use of unauthorized or compromised Infrastructure-as-Code (IaC) modules or malicious supply chain activity involving Terraform configurations.
Detects successful network connections to a specific domain (buildersouthwestlondon.com) where the request URL path includes the string '/cloud/'. This pattern is often indicative of downloading secondary payloads, command-and-control communication, or accessing malicious infrastructure related to a specific campaign.
Detects successful network connections to a specific domain (buildersouthwestlondon.com) where the request URL path includes the string '/cloud/'. This pattern is often indicative of downloading secondary payloads, command-and-control communication, or accessing malicious infrastructure related to a specific campaign.
The detection rule identifies network connections to 'dauntingmoon.online' specifically hitting '/api/verification/init' or '/api/verification/check' paths. It validates that both 'session' and 'link_id' query parameters are present in the request. This pattern is indicative of a specific adversary beaconing or command and control (C2) callback mechanism involving session-based authentication or handshake steps with a remote server.
Detects cortex-xdr-payload.exe connecting to a server outside Palo Alto Networks LRC infrastructure. Attackers can abuse the Live Terminal feature as a pre-installed, EDR-trusted C2 channel by redirecting the payload to their own server using a URL validation bypass in the server hostname check
Detects the execution of Terraform commands (init, apply, plan) that interact with the 'registry.coder.com' domain, or direct network connections to the associated infrastructure. This may indicate the use of unauthorized or compromised Infrastructure-as-Code (IaC) modules or malicious supply chain activity involving Terraform configurations.
Detects the execution of Terraform commands (init, apply, plan) that interact with the 'registry.coder.com' domain, or direct network connections to the associated infrastructure. This may indicate the use of unauthorized or compromised Infrastructure-as-Code (IaC) modules or malicious supply chain activity involving Terraform configurations.
Detects periodic screen capture activity performed by Node.js or Electron-based processes, correlated with subsequent outbound network connections to public IP addresses within a short timeframe. This behavior is indicative of the JSCeal malware's surveillance and exfiltration module, where local reconnaissance via screenshotting is followed by data transmission.
Detects outbound Telnet traffic initiating with a specific magic byte sequence ('|FF FB|') characteristic of the Fire Ant malware's command-and-control communication.
This rule detects potential exploitation or unauthorized interaction with an HAProxy service. It correlates process execution on Linux systems involving the HAProxy PID file with subsequent network traffic containing the suspicious string 'writeservice_info' within a one-hour window.
Detects network connections to known suspicious infrastructure, including specific domains associated with Session, catbox.moe, or targeted npm registry and GitHub API queries initiated by common command-line utilities. This behavior often suggests adversary communication, data staging, or potential tool/malware delivery.
Detects anomalous use of the 'X-Grafana-URL' header in conjunction with an 'Authorization: Bearer' token, indicative of an attempt to exfiltrate a service account token to an unauthorized or external domain, exploiting CVE-2026-15583.
Detects command-line execution (cmd.exe, powershell.exe) originating from a python.exe process tree, correlated with long-running, frequent outbound public network connections from the same python.exe process. This behavior is consistent with the SynkLoader RAT module, where a loader uses a Python process to execute system commands and maintain persistent C2 channels.
This rule identifies a discrepancy between actual network connections processed by HAProxy and the corresponding entries in its server-side logs. Such inconsistencies can indicate the presence of a malicious backdoor compiled into or injected into the HAProxy process, designed to facilitate C2 traffic while evading standard monitoring by suppressing or omitting logging for those connections.
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