Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
296 detections
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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.
Detects high-frequency, repeated exploitation attempts or IDS alerts referencing Siemens S7 CVEs directed at a single destination IP, potentially indicating iterative exploit development or automated vulnerability testing against Industrial Control System (ICS) hardware.
Detects SSFileCopySender/SSFileCopyReceiver helpers running as uid=0 reading or writing sensitive system paths during Screen Sharing sessions using legacy VNC auth or lacking a preceding valid local logon — abuse of the root file-copy primitive underlying CVE-2026-65400.
Detects a high-frequency burst of S7comm protocol connection attempts directed at TCP port 102 from a single source to a specific destination PLC. This pattern of rapid, repeated connection attempts is indicative of automated exploit-variant testing or fuzzing against industrial control systems.
Detects creation of LaunchAgent/LaunchDaemon plists, /etc/zshenv, or SSH authorized_keys attributed to screensharingd/helpers or occurring within a Screen Sharing session window — persistence via the root file-write primitive.
Detects legacy RFB security-type 2 (VNC password) authentication negotiation against macOS Screen Sharing from external sources, indicating legacy-VNC administration or abuse of the CVE-2026-43760 legacy-auth path that retains root file-copy authority.
Detects the CVE-2026-65400 pre-auth bypass exploitation of macOS Screen Sharing via an oversized RFB SRP (security-type 36) authentication frame length field, correlated with the connection subsequently reaching an authenticated state.
Flags macOS hosts below fixed builds (26.6.1/15.7.9/14.8.9) with an actively listening Screen Sharing process, distinguishing genuinely exposed unpatched hosts from mere version drift.
Detects a root-privileged Screen Sharing session with no successful authentication event in the preceding window, indicating exploitation of the screensharingd pre-auth bypass (CVE-2026-65400); excludes known ARD/MDM admin workflows.
Detects the Screen Sharing file-copy helper (SSFileCopySender/SSFileCopyReceiver) running as UID 0/GID 80 while the connected session user is non-root/non-admin, indicating abuse of the arbitrary root file read/write primitive.
Detects the RFB protocol length-field bypass frame pattern used to exploit the screensharingd pre-auth authentication bypass (CVE-2026-65400) on ports 5900/5988.
Detects the NaviTheClown ARM64 Go PoC binary exploiting the screensharingd Frame Length pre-auth bug to download arbitrary files as root
Detects potential exploitation of CVE-2026-59726 (RufRoot) against the Ruflo MCP bridge service. The rule identifies when the 'node' or 'ruflo' processes spawn shell interpreters (sh, bash) with command-line arguments typical of initial reconnaissance (id, hostname, whoami, uname) or arbitrary command execution, indicative of an unauthenticated remote code execution attempt.
Detects the XCSSET zip_infect_finder worming module recursively traversing directories to infect Xcode projects packaged inside .zip archives.
Detects the XCSSET zip_infect_finder worming module recursively traversing directories to infect Xcode projects packaged inside .zip archives.
Detects anomalous access to Cisco SD-WAN Manager (vManage) infrastructure. This includes unauthenticated REST API access, unauthorized NETCONF sessions, and suspicious OMP/DTLS peering connections, which may indicate exploitation of vulnerabilities (such as CVE-2026-20127 or CVE-2026-20182) or unauthorized management access.
Detects anomalous, oversized IKEv1 Phase 1 packets targeting Check Point VPN devices, indicative of an exploitation attempt for CVE-2026-50751.
This rule detects the presence and execution of files and scripts associated with the exploitation of CVE-2026-55200, such as harness binaries and proof-of-concept scripts. Additionally, it identifies post-exploitation behavior where common network-related processes (like curl, git, or sshd) spawn suspicious or unexpected child processes, which may indicate successful code execution or lateral movement originating from the compromised service.
This rule detects potential lateral movement attempts originating from IIS web servers (identified by 'w3wp.exe' as the initiating process) to other internal IP addresses using common lateral movement ports (SMB, RDP, WinRM, SSH). It specifically looks for successful network connections from an IIS server to a private IP address on one of the specified ports, where the remote IP is not the local IP.
Detects the execution of known exploit harnesses and proof-of-concept scripts related to CVE-2026-55200, a critical pre-authentication heap out-of-bounds write vulnerability in libssh2. The rule monitors for the execution of binaries and Python scripts identified as part of the libpwn exploit toolkit used to trigger the vulnerability.
Detects malicious activities targeting Cisco Catalyst SD-WAN infrastructure, including connections from known malicious IP addresses (UAT-8616), unauthenticated vManage API access attempts indicative of exploitation (CVE-2026-20182), and anomalous control-plane signaling (OMP/DTLS/NETCONF) from unauthorized external sources.
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