Windows Defender detects and removes this threat.

This family of threats are .zip attachments that, when opened, try to download and install other malware on your PC, including ransomware and information stealing malware, such as:

• Crowti, Tescrypt, and Locky, which encrypt your files and demand payment to decrypt them
• Fareit, which attempts to steal your passwords and personal information
• Ursnif, which records information about you and your PC

The trend towards increasingly sophisticated malware behavior, highlighted by the use of exploits and other attack vectors, makes older platforms so much more susceptible to ransomware attacks. From June to November 2017, Windows 7 devices were 3.4 times more likely to encounter ransomware compared to Windows 10 devices.

Read our latest report: A worthy upgrade: Next-gen security on Windows 10 proves resilient against ransomware outbreaks in 2017.

Windows Defender detects and removes this threat.

This is a generic detection for malicious JavaScript (.js) files that may be distributed as attachment to spam emails.

The trend towards increasingly sophisticated malware behavior, highlighted by the use of exploits and other attack vectors, makes older platforms so much more susceptible to ransomware attacks. From June to November 2017, Windows 7 devices were 3.4 times more likely to encounter ransomware compared to Windows 10 devices.

Read our latest report: A worthy upgrade: Next-gen security on Windows 10 proves resilient against ransomware outbreaks in 2017.

Windows Defender detects and removes this threat.

This threat is a downloader written in JavaScript which can download and run arbitrary files.

This malware has also been seen to download variants of the Tescrypt Ransomware family.

Microsoft Defender Antivirus detects and removes this threat.

This trojan downloads and installs other programs onto your PC without your consent, including ransomware and other malware.

The trend towards increasingly sophisticated malware behavior, highlighted by the use of exploits and other attack vectors, makes older platforms so much more susceptible to ransomware attacks. From June to November 2017, Windows 7 devices were 3.4 times more likely to encounter ransomware compared to Windows 10 devices.

Read our latest report: A worthy upgrade: Next-gen security on Windows 10 proves resilient against ransomware outbreaks in 2017.