Guru3D.com
  • HOME
  • NEWS
    • Channels
    • Archive
  • DOWNLOADS
    • New Downloads
    • Categories
    • Archive
  • GAME REVIEWS
  • ARTICLES
    • Rig of the Month
    • Join ROTM
    • PC Buyers Guide
    • Guru3D VGA Charts
    • Editorials
    • Dated content
  • HARDWARE REVIEWS
    • Videocards
    • Processors
    • Audio
    • Motherboards
    • Memory and Flash
    • SSD Storage
    • Chassis
    • Media Players
    • Power Supply
    • Laptop and Mobile
    • Smartphone
    • Networking
    • Keyboard Mouse
    • Cooling
    • Search articles
    • Knowledgebase
    • More Categories
  • FORUMS
  • NEWSLETTER
  • CONTACT

New Reviews
Razer Leviathan V2 gaming soundbar review
Guru3D NVMe Thermal Test - the heatsink vs. performance
EnGenius ECW220S 2x2 Cloud Access Point review
Alphacool Eisbaer Aurora HPE 360 LCS cooler review
Noctua NH-D12L CPU Cooler Review
Silicon Power XPOWER XS70 1TB NVMe SSD Review
Hyte Y60 chassis review
ASUS ROG Thor 1000W Platinum II (1000W PSU) review
ASUS ROG Rapture GT-AXE11000 WIFI6E router review
Backforce One Plus Gaming Chair review

New Downloads
AMD Radeon Software Adrenalin 22.6.1 Windows 7 driver download
ReShade download v5.2.2
HWiNFO Download v7.26
7-Zip v22.00 Download
CrystalDiskInfo 8.17 Download
GeForce 516.40 WHQL driver download
Intel ARC graphics Driver Download Version: 30.0.101.1736
AMD Radeon Software Adrenalin 22.5.2 WHQL driver download
Corsair Utility Engine Download (iCUE) Download v4.24.193
Intel HD graphics Driver Download Version: 30.0.101.1994


New Forum Topics
Review: Razer Leviathan V2 gaming soundbar AMD Radeon Software Customize Setup - Radeon Setup Tool [3rd-Party Driver] Amernime Zone Radeon Insight 22.5.1 WHQL Driver Pack (Released) Intel Open Overclocking Championship 2022 AMD Radeon Software - UWP Windows 11 will now tell whether your computer is DirectStorage capable. 525.14 Windows Insider drivers NVIDIA RTX 40 Series Might Get 800 Watts TBP Windows 11 Release Build PubG Latest Insider Build 11




Guru3D.com » News » 4.5 million infected by highly sophisticated TDL-4 virus

4.5 million infected by highly sophisticated TDL-4 virus

by Hilbert Hagedoorn on: 07/01/2011 10:31 AM | source: | 0 comment(s)

BBC News reports security researchers estimate 4.5 million PCs have fallen victim to the TLD-4 virus over the last three months. The TLD-4 botnet is deemed the most sophisticated threat today, it's well protected against attacks, competitors and anti-virus companies. The virus hides in Windows's master boot record, uses a custom encryption system to protect communication between those controlling the botnet and sends out instructions via a public peer-to-peer network rather than centralised command systems.

The 4.5 million PCs have become victims over the last three months following the appearance of the fourth version of the TDL virus.

The changes introduced in TDL-4 made it the "most sophisticated threat today," wrote Kaspersky Labs security researchers Sergey Golovanov and Igor Soumenkov in a detailed analysis of the virus.

"The owners of TDL are essentially trying to create an 'indestructible' botnet that is protected against attacks, competitors, and anti-virus companies," wrote the researchers.

The majority of victims, 28%, are in the US but significant numbers are in India (7%) and the UK (5%). Smaller numbers, 3%, are found in France, Germany and Canada.

However, wrote the researchers, it is the way the botnet operates that makes it so hard to tackle and shut down.

The makers of TDL-4 have cooked up their own encryption system to protect communication between those controlling the botnet. This makes it hard to do any significant analysis of traffic between hijacked PCs and the botnet's controllers.

In addition, TDL-4 sends out instructions to infected machines using a public peer-to-peer network rather than centralised command systems. This foils analysis because it removes the need for command servers that regularly communicate with infected machines.







« AMD phases out around 30 AM3 CPUs · 4.5 million infected by highly sophisticated TDL-4 virus · Sandy Bridge-E delayed until January 2012 »


Guru3D.com © 2022