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Alert level: Severe Detected with Windows Defender Antivirus
Also detected as: No associated aliases
Windows Defender detects and removes this threat.
It can install browser addons that claim to protect you from other addons. These addons can make changes to your home page and also install Win32/Sefnit.
This trojan might have been installed by a member of the Win32/Brantall family.
More details are available in the Win32/Rotbrow family description.