diff --git a/docs/workshop/0-introduction/d4-introduction.pdf b/docs/workshop/0-introduction/d4-introduction.pdf
index 7ffa675..26e95e5 100644
Binary files a/docs/workshop/0-introduction/d4-introduction.pdf and b/docs/workshop/0-introduction/d4-introduction.pdf differ
diff --git a/docs/workshop/0-introduction/d4-introduction.tex b/docs/workshop/0-introduction/d4-introduction.tex
index 2e69e35..26ad786 100644
--- a/docs/workshop/0-introduction/d4-introduction.tex
+++ b/docs/workshop/0-introduction/d4-introduction.tex
@@ -144,6 +144,7 @@ see \url{https://github.com/D4-Project}
                   \item [\checkmark] Passive DNS 
                   \item [\checkmark] Passive SSL 
                   \item Gene\footnote{\url{https://github.com/0xrawsec/gene}} / WHIDS\footnote{\url{https://github.com/0xrawsec/whids}} (sysmon)
+                  \item Maltrail\footnote{\url{https://github.com/stamparm/maltrail}} 
                   \item BGP mapping 
                   \item egress filtering mapping
                   \item Radio-Spectrum monitoring: 802.11, BLE, \sout{GSM}, etc.