Published Feb 24, 2010 | Updated Sep 15, 2017


Severe |Detected with Windows Defender Antivirus

Aliases: W32/FlyStudio.A.gen!Eldorado (Command) TR/Crypt.CFI.Gen (Avira) Trojan.PWS.Qqpass.4225 (Dr.Web) Win32/FlyStudio.Q (ESET) Trojan-PSW.Win32.Flystudio.y (Kaspersky) BackDoor-DRV.gen.c (McAfee)


PWS:Win32/QQPass.CI is a generic detection for a trojan that steals user logon credentials for "QQ", a popular Chinese instant messaging application. The trojan sends captured data to a remote attacker via email.

To detect and remove this threat and other malicious software that may be installed on your computer, run a full-system scan with an appropriate, up-to-date, security solution. The following Microsoft products detect and remove this threat:

For more information on antivirus software, see

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