We're gradually updating threat actor names in our reports to align with the new weather-themed taxonomy. Learn about Microsoft threat actor names
Backdoor:Win32/Smadow
Aliases: Win-Trojan/Zaccess.25600.B (AhnLab) Backdoor.Win32.ZAccess.dg (Kaspersky) W32/ZAccess.G (Norman) Backdoor.ZAccess!W3R2wlUUEiQ (VirusBuster) Backdoor.Win32.ZAccess (Ikarus) Trojan.Zeroaccess (Symantec) TROJ_SPNR.0BHE11 (Trend Micro)
Summary
Backdoor:Win32/Smadow is a trojan that can perform different actions, such as executing other malware, which may be detected as TrojanDropper:Win32/Sirefef.B or Trojan:Win32/Sirefef.
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 http://www.microsoft.com/windows/antivirus-partners/.