VirTool:WinNT/Popureb.A is a component of Win32/Popureb. It uses a low level disk driver hook to prevent a malicious Master Boot Record (MBR) and other malicious data stored as disk sectors from being changed.

Trojan:DOS/Alureon.C is the detection name for infected Master Boot Records (MBR) produced by certain variants of the Win32/Alureon rootkit family. The rootkit infects 32-bit and 64-bit systems.

HackTool:WinNT/Tcpz.C is a device driver that modifies the Windows TCP/IP stack device driver to change the concurrent TCP connection attempts limit.

Trojan:WinNT/Diskhide.A is a trojan installed as a kernel-mode driver that attempts to hide modifications to the Master Boot Record (MBR), detected as Trojan:DOS/Wador.A.

Trojan:Win64/Sirefef.W is the 64-bit user-mode component of Win32/Sirefef - a multi-component family of malware that moderates your Internet experience by modifying search results, and generating pay-per-click advertising revenue for its controllers. The family consists of multiple parts that perform different functions, such as downloading updates and additional components, hiding existing components or performing a payload.

Windows Defender Antivirus detects and removes this threat. 

This hacktool can be used to activate a pirated versions of Microsoft Windows and Microsoft Office.

We recommend you don't use hacktools as they can be associated with malware or unwanted software. We have seen malware distributed with these tools.

Exploit:JS/ShellCode.AL is a malicious JavaScript file that downloads and runs arbitrary files when certain vulnerabilities in the browser are exploited, usually by other malware.