UAT-8616 Backdoor Local Account Creation on Cisco SD-WAN Nodes

Ibrahim Saud@tektrix

•updated Jun 29, 2026•0•0•5

Detects the creation of a root-privileged backdoor account named 'troot' on Cisco SD-WAN nodes (vManage, vSmart, vBond). This rule monitors for process-level indicators such as 'useradd' or 'adduser' usage, manual manipulation of '/etc/passwd' or '/etc/shadow' files, and subsequent 'su' activity or authentication logs associated with the 'troot' account. This pattern aligns with post-exploitation persistence mechanisms observed in UAT-8616 activity.