Tropic Trooper, a threat actor group that targets government, military, healthcare, transportation, and high-tech industries in Taiwan, the Philippines, and Hong Kong, has been active since 2011.
The group was reportedly using spear-phishing emails with weaponized attachments to exploit known vulnerabilities. Primarily motivated by information theft and espionage, the group has also been seen adopting different strategies such as fine-tuning tools with new behaviors and going mobile with surveillanceware.
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Source: Trend Micro