HackBlue

Labs / Processes and ports

A program whose file is gone

A responder collected the /proc exe links from vpn-01. One running process points at a deleted file. Find it, its original path, and the port it serves.

  • Terminal mission
  • Intermediate
  • 4 objectives
  • 0 of 4 solved

Briefing

Malware often deletes its own file after it starts, so a disk scan finds nothing. The kernel still knows what was loaded: the link at /proc/<pid>/exe ends in (deleted).

The responder saved the output of ls -l /proc/*/exe to /cases/ir-88/proc_exe.txt before anything was changed.

analyst@vpn-01

vpn-01 · Processes and ports

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