added Malcolm

Vagrant/resources/malcolm/file-monitor/yara-rules-update.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+set -e
+set -u
+set -o pipefail
+
+ENCODING="utf-8"
+
+[[ "${EXTRACTED_FILE_UPDATE_RULES:-"false"}" == "true" ]] || exit 0
+
+SRC_DIR=${YARA_RULES_SRC_DIR:-"/usr/local/src/signature-base"}
+LINK_DIR=${YARA_RULES_DIR:-"/yara-rules"}
+
+if type git >/dev/null 2>&1 && [[ -d "$SRC_DIR" ]] && [[ -d "$LINK_DIR" ]]; then
+  pushd "$SRC_DIR" >/dev/null 2>&1
+  git remote update
+  git fetch --depth 1 origin
+  git reset --hard origin
+  popd >/dev/null 2>&1
+  rm -f "$LINK_DIR"/*.yar
+  ln -v -f -s -r "$YARA_RULES_SRC_DIR"/yara/*.yar "$YARA_RULES_SRC_DIR"/vendor/yara/*.yar "$LINK_DIR"/
+else
+  exit 1
+fi