Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
166 detections
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Detects network activity and successful administrative logins to Cisco SD-WAN vManage devices originating from IPs associated with threat actor UAT-8616. The rule also flags any successful vmanage-admin logins originating from outside known trusted management network ranges, which may indicate exploitation of CVE-2026-20127 or CVE-2026-20182.
This rule monitors Cisco SD-WAN environments for indicators of post-exploitation, including unauthorized SSH lateral movement, abuse of administrative tools (vshell, confd_cli), suspicious tenant list modifications related to CVE-2026-20245, privilege escalation to backdoor accounts, system file tampering (/etc/passwd, /etc/shadow), and anti-forensic activities such as log and history deletion.
Detects a suspicious sequence of events where a user successfully authenticates via SSH to a Cisco SD-WAN Manager (vManage) using the 'vmanage-admin' account, followed by REST API calls to enumerate device inventory (vedges or controllers) from the same source IP within 30 minutes. This behavior is indicative of potential post-exploitation activity or reconnaissance associated with the UAT-8616 campaign.
Detects successful SSH authentication to administrative accounts ('vmanage-admin' or 'admin') on Cisco Catalyst SD-WAN Manager (vManage) devices originating from IP addresses associated with the threat actor UAT-8616. This activity relates to exploits targeting CVE-2026-20127 and CVE-2026-20182 for unauthorized access via authentication bypass or certificate abuse.
Detects the unauthorized addition or peering of rogue devices within a Cisco SD-WAN fabric. This rule monitors vManage and vBond logs for successful peering or registration events that correlate with known rogue indicators, such as certificate validation failures, mismatching system information, or untrusted peer identities. This activity is often indicative of attackers attempting to gain persistent control over the SD-WAN infrastructure, potentially using authentication bypass vulnerabilities or stolen credentials.
Detects potential exploitation attempts against management interfaces of SOHO network devices (Cisco, Ubiquiti, Draytek) by monitoring for suspicious web request activity, specifically targeting paths like /admin, /cgi-bin, or /setup.cgi. The rule identifies high-volume or systematic scan patterns from external sources, which may indicate automated exploitation attempts (e.g., related to CVE-2026-35616).
Detects administrative commands (e.g., showing running configuration, copying startup configuration, or accessing enable secret) executed via SSH or Telnet on network devices from non-baseline management IP addresses.
Detects unauthorized persistence mechanisms on Cisco SD-WAN Manager, vSmart, and vBond nodes by monitoring for local account creation (e.g., useradd), modification of sensitive authentication files (/etc/passwd, /etc/shadow), and illicit SSH key placement in authorized_keys. This rule specifically monitors for known exploit paths involving the 'troot' account and related command-line activity indicative of unauthorized administrative access.
Detects potential exploitation of CVE-2026-20127 on SD-WAN controllers, specifically unauthorized SSH authentication to the vmanage-admin account followed by suspicious NETCONF activity, usage of unauthorized tenant list CSV files, or execution of suspicious tenant-upload scripts.
This rule monitors for suspicious activity on Linux-based SD-WAN appliances (e.g., vManage, vBond, vSmart) including unauthorized file deletion, log tampering, and credential backup manipulation. It specifically flags operations like removing system logs, deleting configuration/tenant files, or copying sensitive files like /etc/passwd and /etc/shadow, which are common indicators of post-exploitation activity or attempts to hide malicious footprints.
Detects unauthorized persistence mechanisms on Cisco SD-WAN management plane nodes (vManage, vSmart, vBond). The rule monitors for modifications to SSH authorized_keys files, execution of commands like ssh-keygen or user management utilities, and SSH authentication events or configuration changes (e.g., PermitRootLogin) indicative of backdoored access.
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 suspicious activity on Cisco SD-WAN infrastructure (vManage, vSmart, vBond) associated with unauthorized configuration changes, potential exploitation of CVE-2026-20245, rogue account creation, and anti-forensic behaviors.
Detects indicators of exploitation related to CVE-2026-20245 on Cisco Catalyst SD-WAN controllers, including malicious tenant CSV uploads, unauthorized account creation (troot), privilege escalation via su, anti-forensic backup of system configuration files, and configuration changes such as PermitRootLogin enabled.
Detects unauthorized SSH public key authentication to the vmanage-admin account on Cisco SD-WAN devices. This behavior is indicative of potential unauthorized persistence or account manipulation using SSH keys. The rule also references monitoring for changes to the PermitRootLogin configuration, which is a common indicator of attempts to enable root access via SSH.
Detects rapid successive password changes to the default 'admin' account on Cisco SD-WAN controllers followed by a configuration rollback. This pattern indicates an adversary attempting to temporarily modify credentials for exploitation while attempting to evade detection by reverting to the original configuration state, specifically targeting NETCONF configuration commits.
Detects the creation or manipulation of the 'troot' root-privileged backdoor account on Cisco Catalyst SD-WAN controllers, associated with the UAT-8616 exploit chain. The rule monitors for direct modification of /etc/passwd or /etc/shadow files, usage of useradd, grep operations on passwd files, and execution of su to the troot account.
This rule detects unauthorized configuration of GRE tunnels on Cisco IOS-XE network devices, potentially indicating persistent command and control (C2) channel establishment via TCL injection or illicit configuration changes involving known attacker infrastructure (62.171.185.97). It correlates network traffic to the attacker IP with process-level activity involving suspicious configuration files, scripts, or device-specific command-line arguments.
This rule detects successful SSH login events utilizing public key authentication for the 'vmanage-admin' user. It aggregates login events by source IP, username, and host to identify patterns of access for this specific administrative account.
Detects unauthorized modifications to SSH authorized_keys files and changes to SSH configuration (specifically PermitRootLogin) on Cisco SD-WAN controllers, which may indicate persistence or unauthorized remote access attempts.
Detects unauthorized changes to the admin or vmanage-admin user credentials on Cisco SD-WAN Manager. The rule monitors for 'usermod', 'passwd', or AAA password commit commands within the 'vmanage-admin' user context. It specifically identifies a 'change-and-revert' pattern, where the attacker changes a password to gain access and immediately reverts it to evade detection, elevating the risk to critical.
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