Anti Malware

TDSSKiller

5  /  45 Reviews
26,071 Downloads
Jun 24, 2026 Last updated

Downloads

Description

TDSSKiller, also known as Kaspersky TDSSKiller, is a free Windows utility for detecting and removing rootkits and related hidden malware.

TDSSKiller is designed for malware that hides in system areas rather than behaving like an ordinary visible file. It can inspect locations such as services, drivers, memory, loaded modules, boot sectors, and other rootkit-prone parts of Windows.

The tool is associated with TDSS and Win32.TDSS-style infections, but the page also notes detection coverage for families such as Alureon, Cidox, Cmoser, Sinowal, Whistler, Phanta, SST, Pihar, Stoned, MyBios, Zhaba, ZeroAccess, and selected bootkits.

A TDSSKiller download is most relevant when another security product, malware-removal guide, or support technician points to a possible rootkit. It is not a replacement for a complete antivirus suite and should be used with care when results involve boot or driver components.

TDSSKiller Features

TDSSKiller keeps the interface direct because its job is narrow. Users choose scan parameters, run the check, review detections, and follow the suggested action when they are confident the result matches the problem they are investigating.

Some inspection and cleanup steps may need a reboot, especially when loaded modules or protected system areas are involved. Saving work before running the scan is sensible because the tool may need to complete changes before Windows fully loads again.

  • Rootkit and bootkit scanning for Microsoft Windows
  • Checks memory, services, drivers, boot sectors, and loaded modules
  • Optional KSN object scanning and TDLFS file-system detection
  • Digital-signature verification for inspected files
  • Detection coverage for TDSS, Alureon, Sinowal, ZeroAccess, Pihar, and related threats

TDSSKiller Review

TDSSKiller is valuable because rootkits often need a focused tool rather than a general cleanup pass. A hidden driver, altered boot record, or suspicious service can survive casual removal attempts, so a scanner built for those locations has a clear role.

The review caveat is that specialized malware tools can have consequences if used carelessly. Users should keep the scan log, read prompts before accepting removal, and avoid deleting uncertain system components without additional confirmation.

The portable executable and ZIP package options make it easier to run TDSSKiller during a targeted investigation. That is useful on a compromised machine, provided the file is obtained from a trustworthy source and the user is prepared for a reboot if cleanup requires one.

Download TDSSKiller if you need a focused Windows anti-rootkit check. Use a full security suite for continuous protection, and treat this tool as a targeted scanner for suspected hidden malware rather than a daily background defense.

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