OOO archive --- DEF CON CTF [ login ]

dc2019q - mamatrace reversing

by zardus

This was a jeopardy challenge, part of dc2019q. (CTFtime)

Points: 142
Was solved by: 31 teams

You may spawn the server:

On your laptop

This challenge may require more resources or special steps:

  • Install docker
  • docker pull archiveooo/pub:mamatrace (docker-saved download)
  • docker run -d --name mamatrace archiveooo/pub:mamatrace
  • Local IP: docker inspect mamatrace -f '{{ .NetworkSettings.Networks.bridge.IPAddress }}'
  • Connect to that IP:5000 — Remember to docker rm -f when done.


Turns out that some binaries just shouldn't be traced. These ones should be safe!

Also checkout babytrace and papatrace :)

line_weight Dockerfile line_weight line_weight headerquery2 line_weight flagleak


None yet :(
If you wish, you can contribute some.


See babytrace and papatrace