Super Bot


This sure looks like a nasty piece of work.

Massive botnet ‘indestructible,’ say researchers

A new and improved botnet that has infected more than four million PCs is “practically indestructible,” security researchers say.

“TDL-4,” the name for both the bot Trojan that infects machines and the ensuing collection of compromised computers, is “the most sophisticated threat today,” said Kaspersky Labs researcher Sergey Golovanov in a detailed analysis Monday.

“[TDL-4] is practically indestructible,” Golovanov said.

. . .

TDL-4 infects the MBR, or master boot record, of the PC with a rootkit — malware that hides by subverting the operating system. The master boot record is the first sector — sector 0 — of the hard drive, where code is stored to bootstrap the operating system after the computer’s BIOS does its start-up checks.

Because TDL-4 installs its rootkit on the MBR, it is invisible to both the operating system and more, importantly, security software designed to sniff out malicious code.

But that’s not TDL-4’s secret weapon.

What makes the botnet indestructible is the combination of its advanced encryption and the use of a public peer-to-peer (P2P) network for the instructions issued to the malware by command-and-control (C&C) servers.

See also:
TDL4 – Top Bot
Sophisticated TDL-4 Botnet Has 4.5 Million Infected Zombies
‘Indestructible’ rootkit enslaves 4.5m PCs in 3 months
TDL-4 creates 4.5 million PC ‘indestructible’ botnet
Security Researchers Discover the Mother of All Botnets
TDL-4: The ‘indestructible’ botnet?
There’s a Botnet Called TDL-4 That’s Virtually Indestructable
‘Indestructible’ Botnet Enslaves 4.5 Million PCs
‘Indestructible’ Zombie PC Botnet Borrows Exploit From Israeli, U.S. Cyberweapon
Have cybercriminals created the perfect botnet — undetectable and indestructible?

If you ever needed a reason and reminder to keep your operating system, anti-virus, and anti-spywware software patched and up to date, this would be a good one.

/remember, if you’re not part of the solution, you’re potentially part of the problem

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3 Responses

  1. Hey Killian – great “alert” for all of us, but I still don’t understand what keeping o/s and anti-virus, anti-malware up to date will do if this sucker gets into your Master Boot Record!
    And I still don’t understand how the heck it gets into your MBR!
    Any help would be appreciated!

    • If you keep all your PC protection up to date, the bot Trojan doesn’t infect your computer in the first place.

  2. What he said. A router with a hardware firewall is also helpful.

    EVERY
    THING,
    R

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