New version of Chinese malware named Taidoor has been discovered

This discovery is the result of analytic efforts between the Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), and the Department of Defense (DoD).

Working with U.S. Government partners, CISA, FBI, and DoD identified a malware variant used by Chinese government cyber actors, which is known as TAIDOOR.

Malicious binaries identified as a x86 and x64 version of Taidoor were submitted for analysis. Taidoor is installed on a target’s system as a service dynamic link library (DLL) and is comprised of two files. The first file is a loader, which is started as a service. The loader decrypts the second file, and executes it in memory, which is the main Remote Access Trojan (RAT).

Review of – – Virus Total

Indicator of compromise (IoC)


0d0ccfe7cd476e2e2498b854cef2e6f959df817e52924b3a8bcdae7a8faaa686 (svchost.dll)

363ea096a3f6d06d56dc97ff1618607d462f366139df70c88310bbf77b9f9f90 (svchost.dll)

4a0688baf9661d3737ee82f8992a0a665732c91704f28688f643115648c107d4 (ml.dll)

6e6d3a831c03b09d9e4a54859329fbfd428083f8f5bc5f27abbfdd9c47ec0e57 (rasautoex.dll)




Duncan is a technology professional with over 20 years experience of working in various IT roles. He has a interest in cyber security, and has a wide range of other skills in radio, electronics and telecommunications.

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