We discovered a spam campaign that delivers the notorious cross-platform remote access Trojan (RAT) Adwind a.k.a. jRAT (detected by Trend Micro as JAVA_ADWIND.WIL) alongside another well-known backdoor called XTRAT a.k.a XtremeRAT (BKDR_XTRAT.SMM). The spam campaign also delivered the info-stealer Loki (TSPY_HPLOKI.SM1).
DUNIHI (VBS_DUNIHI.ELDSAVJ), a known VBScript with backdoor and worm capabilities, was also seen being dropped with Adwind via spam mail in a separate incident. Notably, cybercriminals behind the Adwind-XTRAT-Loki and Adwind-DUNIHI bundles abuse the legitimate free dynamic DNS server hopto[.]org. The delivery of different sets of backdoors is believed to be a ploy used to increase the chances of system infection: If one malware gets detected, the other malware could attempt to finish the job.Read More