EX-Action: Automatically Extracting Threat Actions from Cyber Threat Intelligence Report Based on Multimodal Learning

Table 1

The three elements in action rule matching table.

Element in action	POS	POS-symbols
Subject	Noun, noun and noun, pronoun, noun + cardinal number	NN, NNS, NNP, NNPS, PRP, CC, N + CD
Verb	Verb, verb and verb	VB, VBD, VBG, VBP, VBN, VBZ
Object	Noun, noun and noun, noun + cardinal number	NN, NNS, NNP, NNPS, CC, N + CD