NetTraveler / Travnet
NetTraveler / Travnet (canonical Kaspersky GReAT naming per June 14, 2013 disclosure by Costin Raiu at 2013 Cybersecurity Forum Washington D.C.
naming derives from internal malware string "NetTraveler is Running!" present in earliest versions.
alternative naming Travnet / Netfile / Red Star APT) is a People's Republic of China state-aligned cyber- espionage cluster active publicly since at least 2004-2005 , approximately 22+ years of tracked operational continuity, operationally one of the longest-running publicly-tracked China-attributed clusters in industry analysis.
per Kaspersky GReAT analysis ~50-operator Chinese-speaking team with working English knowledge.
~350 confirmed victims (estimated ~1,000 total across 40 countries with highest concentrations in Mongolia + India + Russia)
signature target categories include Tibetan/Uyghur activists (operationally consistent with PRC suppression of diaspora activism), government agencies and embassies, oil industry companies, scientific research centers, universities, military contractors, and foreign ISPs.
signature operationally-amateurish but successful tradecraft using Microsoft Office publicly- known vulnerabilities CVE-2012-0158 + CVE-2010-3333 + CVE- 2015-2545 (no 0day investment) with custom NetTraveler Trojan + Saker backdoor (Saker shares DLLs JustTempFun + ServiceMain with Gh0st RAT operationally indicating same developers)
DLL side-loading via fsguidll.exe / RasTls.exe legitimate signed executables sideloading malicious fslapi.dll / rastls.dll payloads.
MNKit Office malicious document builder signature artifacts.
custom protocols resembling BASE64 for exfiltration.
Shanghai Meicheng Technology Beijing domain registrar concentration.
look-alike domain RAR-SFX hosting + watering hole tradecraft on Uyghur/Tibetan compromised websites (weststock[.]org + Islamic Association of Eastern Turkistan iframe injection delivering Java applets new.jar + ie.jar with CVE-2013-2465 Java exploit payloads)
operational connections to Gh0st RAT developers, Titan Rain historical China operations, and Red October shared-victim operational overlap (without cluster coordination)
same-actor pre-2016 PlugX operational era per ProofPoint research (PlugX-to-NetTraveler operational pivot January 2016)
post-disclosure operational continuity via infrastructure rotation to China/Hong Kong/Taiwan rather than operational cessation.
fills historical longest-running China-attributed APT cell in the curated corpus.