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Category: Malware

Type: Rootkit

Aliases: Rootkit:W32/Agent.TZ, Trojan-Clicker.Win32.VB.ath


A program or set of programs which hides itself by subverting or evading the computer's security mechanisms, then allows remote users to secretly control the computer's operating system.


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Technical Details

Agent.TZ creates the following device object and symbolic link so that Worm:W32/VB.KS (usermode) can open a handle to the driver.

  • \Device\hideproc
  • \DosDevices\hideproc

It processes the control code sent by Worm:W32/VB.KS so that its process will be hidden in the process list.It uses a Direct Kernel Object Manipulatin (DKOM) technique for hiding processes.