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Alert level: Severe Detected with Windows Defender Antivirus
Also detected as: Trojan.Win32.Sefnit (Ikarus)
Windows Defender detects and removes this threat.
It can also use your PC to mine Litecoins.
This type of threat can be downloaded by other malware, or bundled with other software and downloaded through peer-to-peer file sharing networks.
If you have this detected on your PC, then it's likely you're infected with other parts of the Win32/Sefnit family.