PHP 8.5.7 StreamBucket SOAP RCE — Shell Spawn or Exploitation Artifact (exploitarium)

Ibrahim Saud@tektrix

•updated Jun 29, 2026•1•0•1

Detects signs of active exploitation of the PHP857 vulnerability. The rule identifies suspicious behaviors associated with this RCE, including the spawning of shells by PHP processes, access to sensitive memory maps (/proc/self/) for ASLR bypass, and the creation of specific indicator files or execution of proof-of-concept strings.